<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article  PUBLIC "-//NLM//DTD Journal Publishing DTD v3.0 20080202//EN" "http://dtd.nlm.nih.gov/publishing/3.0/journalpublishing3.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="3.0" xml:lang="en" article-type="research article"><front><journal-meta><journal-id journal-id-type="publisher-id">OJG</journal-id><journal-title-group><journal-title>Open Journal of Geology</journal-title></journal-title-group><issn pub-type="epub">2161-7570</issn><publisher><publisher-name>Scientific Research Publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.4236/ojg.2015.511069</article-id><article-id pub-id-type="publisher-id">OJG-61572</article-id><article-categories><subj-group subj-group-type="heading"><subject>Articles</subject></subj-group><subj-group subj-group-type="Discipline-v2"><subject>Earth&amp;Environmental Sciences</subject></subj-group></article-categories><title-group><article-title>
 
 
  The Analysis of Transverse Topographic Symmetry Factor (T Index) in the Chekene-Mazavand, North East Iran
 
</article-title></title-group><contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>ohammad</surname><given-names>Reza Sajadian</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Mohsen</surname><given-names>Pourkermani</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Manochehr</surname><given-names>Qorashi</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Naser</surname><given-names>Hafezi Moghaddas</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib></contrib-group><aff id="aff1"><addr-line>Department of Geology, North Branch, Islamic Azad University, Tehran, Iran</addr-line></aff><aff id="aff2"><addr-line>Department of Geology, Ferdowsi University, Mashhad, Iran</addr-line></aff><author-notes><corresp id="cor1">* E-mail:<email>mohpourkermani12@gmail.com(MP)</email>;</corresp></author-notes><pub-date pub-type="epub"><day>03</day><month>11</month><year>2015</year></pub-date><volume>05</volume><issue>11</issue><fpage>809</fpage><lpage>820</lpage><history><date date-type="received"><day>12</day>	<month>September</month>	<year>2015</year></date><date date-type="rev-recd"><day>accepted</day>	<month>24</month>	<year>November</year>	</date><date date-type="accepted"><day>30</day>	<month>November</month>	<year>2015</year></date></history><permissions><copyright-statement>&#169; Copyright  2014 by authors and Scientific Research Publishing Inc. </copyright-statement><copyright-year>2014</copyright-year><license><license-p>This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/</license-p></license></permissions><abstract><p>
 
 
  T index has been calculated in the Chekene-Mazavand region in the NE Iran. This index shows lateral tilting may be related to active tectonics. There are many streams and transverse topographic symmetry factor has been calculated for all streams of Kashafroud river. Firstly, based on digital elevation model, the study area was divided into 28 sub-basins. Then transverse topographic symmetry factor was calculated for each one. The values are between 0.14 and 0.57 and so, there are low, moderate and high levels of relative tectonic activities. The areas with low relative tectonic activities have found in sub-basins
   
  no. 14, 15 and 24, moderate relative tectonic activities have found in sub-basinsno. 2, 5, 6, 7, 9, 10, 13, 16, 18, 19, 21, 22, 23, 25, 27 and 28 and high relative tectonic activities have found in sub-basins
   
  no. 1, 3, 4, 8, 11, 12, 17, 20 and 26. The results show that the
   
  plains have got low to moderate level of tectonic activity and faulted areas have got high tectonic activity. This matter is compatible with its tectonic setting on the Kopet Dagh belt in north east Iran.
 
</p></abstract><kwd-group><kwd>Transverse Topographic</kwd><kwd> Symmetry Factor</kwd><kwd> Chekene-Mazavand</kwd><kwd> Tectonic</kwd><kwd> Iran</kwd></kwd-group></article-meta></front><body><sec id="s1"><title>1. Introduction</title><p>The Chekene-Mazavand area is located in the Kopet Dagh physiographic province, NE Iran (<xref ref-type="fig" rid="fig1">Figure 1</xref>). Dominant structural trend in Kopet Dagh province is NW-SE. From tectonics view, it contains the Kopet Dagh</p><fig id="fig1"  position="float"><label><xref ref-type="fig" rid="fig1">Figure 1</xref></label><caption><title> Physiographic-tectonic zoning map of Iran’s sedimentary basins, modified from [<xref ref-type="bibr" rid="scirp.61572-ref1">1</xref>] . Numbers in this figure are: 1: Zagros-East Taurus hinterland, 2: Persian Gulf- Mesopotamian foreland basin, 3: Makran accretionary prism, 4: Bashagard Mountains, 5: Jazmorian-Mashkel fore arc basin, 6: Shahsavaran-Soltan magmatic arc, 7: South Lut- South Helmand back arc basin, 8: East Iran Mountain belt, 9: West-Central Alborz and lesser Caucasus hinterland, 10: Great Kavir-Northen Urmieh lake foreland basin, 11: South Great Kavirfold and thrust belt, 12: South Caspian-Black sea foreland basin, 13: Urmieh-Dokhtar Magmatic Arc, 14: Naien-Kerman retro arc foreland basin, 15: Sanandaj-Sirjanoverthrust belts, 16: East Alborz or Binalod hinterland, 17: Torbat-e am-Ney- shabour retro arc foreland basin, 18: Kopet Dagh hinterland, 19: South Caspian remnant basin, 20: Maiamay-Taibad Inverted back arc basin, 21: Khaf-Kavir Plain Magmatic Arc, 22: Lut Plain-Gonabad back arc basin, 23: Tabas hinterland, 24: Yazd-Khour Piggy back basin. The study area is shown in the black rectangle</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/6-1210393x7.png"/></fig><p>hinterland or Kopet Dagh fold and thrust belt that formed in passive margin of Eurasian plate until late Triassic and then marine sedimentation on Kopet Dagh proforeland basin has continued to Eocene. Kopet Dagh hinterland has uplifted related to Karakorum foreland basin in north east along Eshghabad fault [<xref ref-type="bibr" rid="scirp.61572-ref1">1</xref>] -[<xref ref-type="bibr" rid="scirp.61572-ref3">3</xref>] .</p><p>Based on previous work on the salt and mud diapirism [<xref ref-type="bibr" rid="scirp.61572-ref4">4</xref>] -[<xref ref-type="bibr" rid="scirp.61572-ref15">15</xref>] and neotectonic regime in Iran [<xref ref-type="bibr" rid="scirp.61572-ref16">16</xref>] -[<xref ref-type="bibr" rid="scirp.61572-ref21">21</xref>] , Zagros in south Iran is the most active zone [<xref ref-type="bibr" rid="scirp.61572-ref22">22</xref>] -[<xref ref-type="bibr" rid="scirp.61572-ref44">44</xref>] . Then, Alborz [<xref ref-type="bibr" rid="scirp.61572-ref45">45</xref>] -[<xref ref-type="bibr" rid="scirp.61572-ref84">84</xref>] and Central Iran [<xref ref-type="bibr" rid="scirp.61572-ref85">85</xref>] -[<xref ref-type="bibr" rid="scirp.61572-ref100">100</xref>] have been situated in the next orders. The analysis of T index that shows lateral tilting is the main goal in this paper.</p></sec><sec id="s2"><title>2. Materials and Methods</title><p>The transverse topographic symmetry factor shows lateral tilting that it may be related to active tectonics. There are many streams and transverse topographic symmetry factor has been calculated for all streams of Kashafroud river (<xref ref-type="fig" rid="fig2">Figure 2</xref> and <xref ref-type="fig" rid="fig3">Figure 3</xref>). Kashafroud river is the main river in the Chekene-Mazavand area (<xref ref-type="fig" rid="fig4">Figure 4</xref>). Based on digital elevation model of Chekene-Mazavand area, there are 28 sub-basins. The study area is located between longitudes E58˚, 30'- 61˚ and latitudes N35˚, 30'-37˚ in the Khorasan province, in the NE Iran.</p>Transverse topographic Symmetry factor (T)<p>T index or transverse topographic symmetry factor has been calculated as T = Da/Dd and it can be between 0 in the symmetric basin and 1 in the asymmetry basin.</p><p>Da is the space from the midline of the drainage basin to the midline of the active belt and Dd is the space from the midline to the basin limit [<xref ref-type="bibr" rid="scirp.61572-ref101">101</xref>] . In this research, we were considered class 1 for T &gt; 0.4, class 2 for T between 0.2 and 0.4 and class 3 for T &lt; 0.2 and so, sub-basin No. 1, 3, 4, 8, 11, 12, 17, 20 and 26 shows higher activity (<xref ref-type="table" rid="table1">Table 1</xref>).</p><fig id="fig2"  position="float"><label><xref ref-type="fig" rid="fig2">Figure 2</xref></label><caption><title> An oblique view on Landsat satellite image that shows some streams of the Kashafroud river</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/6-1210393x8.png"/></fig><fig id="fig3"  position="float"><label><xref ref-type="fig" rid="fig3">Figure 3</xref></label><caption><title> Land subsidence value around the middle part of Kashafroud river plain</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/6-1210393x9.png"/></fig><fig id="fig4"  position="float"><label><xref ref-type="fig" rid="fig4">Figure 4</xref></label><caption><title> The sub-basins on Landsat satellite image of the Chekene-Mazavand area</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/6-1210393x10.png"/></fig><table-wrap-group id="1"><label><xref ref-type="table" rid="table1">Table 1</xref></label><caption><title> Values of T index for sub-basins</title></caption><table-wrap id="1_1"><table><tbody><thead><tr><th align="center" valign="middle"  colspan="7"  >T index</th></tr></thead><tr><td align="center" valign="middle" >Sub-basin</td><td align="center" valign="middle" >Number</td><td align="center" valign="middle" >Da (m)</td><td align="center" valign="middle" >Dd (m)</td><td align="center" valign="middle" >T (m)</td><td align="center" valign="middle" >T<sub>ave</sub> (m)</td><td align="center" valign="middle" >class</td></tr><tr><td align="center" valign="middle"  rowspan="2"  >1</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >2270</td><td align="center" valign="middle" >3589</td><td align="center" valign="middle" >0.63</td><td align="center" valign="middle"  rowspan="2"  >0.52</td><td align="center" valign="middle"  rowspan="2"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1289</td><td align="center" valign="middle" >3179</td><td align="center" valign="middle" >0.41</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >2</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >299</td><td align="center" valign="middle" >5520</td><td align="center" valign="middle" >0.05</td><td align="center" valign="middle"  rowspan="4"  >0.31</td><td align="center" valign="middle"  rowspan="4"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1172</td><td align="center" valign="middle" >3405</td><td align="center" valign="middle" >0.34</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1543</td><td align="center" valign="middle" >4602</td><td align="center" valign="middle" >0.34</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >1956</td><td align="center" valign="middle" >3860</td><td align="center" valign="middle" >0.51</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >3</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >4386</td><td align="center" valign="middle" >7830</td><td align="center" valign="middle" >0.56</td><td align="center" valign="middle"  rowspan="3"  >0.57</td><td align="center" valign="middle"  rowspan="3"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >6280</td><td align="center" valign="middle" >7480</td><td align="center" valign="middle" >0.84</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >2178</td><td align="center" valign="middle" >7200</td><td align="center" valign="middle" >0.30</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >4</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >8530</td><td align="center" valign="middle" >11010</td><td align="center" valign="middle" >0.77</td><td align="center" valign="middle"  rowspan="3"  >0.53</td><td align="center" valign="middle"  rowspan="3"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >10920</td><td align="center" valign="middle" >14770</td><td align="center" valign="middle" >0.74</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >427</td><td align="center" valign="middle" >5280</td><td align="center" valign="middle" >0.08</td></tr><tr><td align="center" valign="middle"  rowspan="5"  >5</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >3091</td><td align="center" valign="middle" >11440</td><td align="center" valign="middle" >0.27</td><td align="center" valign="middle"  rowspan="5"  >0.34</td><td align="center" valign="middle"  rowspan="5"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1602</td><td align="center" valign="middle" >10110</td><td align="center" valign="middle" >0.16</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >3082</td><td align="center" valign="middle" >12290</td><td align="center" valign="middle" >0.25</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >5010</td><td align="center" valign="middle" >11210</td><td align="center" valign="middle" >0.45</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >6810</td><td align="center" valign="middle" >12200</td><td align="center" valign="middle" >0.56</td></tr><tr><td align="center" valign="middle"  rowspan="5"  >6</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >5850</td><td align="center" valign="middle" >10600</td><td align="center" valign="middle" >0.55</td><td align="center" valign="middle"  rowspan="5"  >0.29</td><td align="center" valign="middle"  rowspan="5"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1099</td><td align="center" valign="middle" >6900</td><td align="center" valign="middle" >0.16</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1940</td><td align="center" valign="middle" >4170</td><td align="center" valign="middle" >0.47</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >345</td><td align="center" valign="middle" >6200</td><td align="center" valign="middle" >0.06</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >1478</td><td align="center" valign="middle" >7240</td><td align="center" valign="middle" >0.20</td></tr></tbody></table></table-wrap><table-wrap id="1_2"><table><tbody><thead><tr><th align="center" valign="middle"  rowspan="4"  >7</th><th align="center" valign="middle" >1</th><th align="center" valign="middle" >6140</th><th align="center" valign="middle" >16330</th><th align="center" valign="middle" >0.38</th><th align="center" valign="middle"  rowspan="4"  >0.38</th><th align="center" valign="middle"  rowspan="4"  >2</th></tr></thead><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >2694</td><td align="center" valign="middle" >10680</td><td align="center" valign="middle" >0.25</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >2266</td><td align="center" valign="middle" >5680</td><td align="center" valign="middle" >0.40</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >401.6</td><td align="center" valign="middle" >1737</td><td align="center" valign="middle" >0.23</td></tr><tr><td align="center" valign="middle"  rowspan="2"  >8</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >2797</td><td align="center" valign="middle" >6010</td><td align="center" valign="middle" >0.47</td><td align="center" valign="middle"  rowspan="2"  >0.48</td><td align="center" valign="middle"  rowspan="2"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >2578</td><td align="center" valign="middle" >5270</td><td align="center" valign="middle" >0.49</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >9</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >852.6</td><td align="center" valign="middle" >1939</td><td align="center" valign="middle" >0.44</td><td align="center" valign="middle"  rowspan="3"  >0.34</td><td align="center" valign="middle"  rowspan="3"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >120.7</td><td align="center" valign="middle" >2851</td><td align="center" valign="middle" >0.04</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >943.7</td><td align="center" valign="middle" >1771</td><td align="center" valign="middle" >0.53</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >10</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >2702</td><td align="center" valign="middle" >8260</td><td align="center" valign="middle" >0.33</td><td align="center" valign="middle"  rowspan="3"  >0.31</td><td align="center" valign="middle"  rowspan="3"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1840</td><td align="center" valign="middle" >9650</td><td align="center" valign="middle" >0.19</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1601</td><td align="center" valign="middle" >3840</td><td align="center" valign="middle" >0.42</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >11</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >1433</td><td align="center" valign="middle" >3551</td><td align="center" valign="middle" >0.40</td><td align="center" valign="middle"  rowspan="4"  >0.48</td><td align="center" valign="middle"  rowspan="4"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >2227</td><td align="center" valign="middle" >3833</td><td align="center" valign="middle" >0.58</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1646</td><td align="center" valign="middle" >3238</td><td align="center" valign="middle" >0.51</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >608</td><td align="center" valign="middle" >1459</td><td align="center" valign="middle" >0.42</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >12</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >2822</td><td align="center" valign="middle" >5170</td><td align="center" valign="middle" >0.55</td><td align="center" valign="middle"  rowspan="3"  >0.48</td><td align="center" valign="middle"  rowspan="3"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1323</td><td align="center" valign="middle" >3062</td><td align="center" valign="middle" >0.43</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1075</td><td align="center" valign="middle" >2322</td><td align="center" valign="middle" >0.46</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >13</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >706</td><td align="center" valign="middle" >6340</td><td align="center" valign="middle" >0.11</td><td align="center" valign="middle"  rowspan="3"  >0.27</td><td align="center" valign="middle"  rowspan="3"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >2349</td><td align="center" valign="middle" >5700</td><td align="center" valign="middle" >0.41</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1142</td><td align="center" valign="middle" >4077</td><td align="center" valign="middle" >0.28</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >14</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >1850</td><td align="center" valign="middle" >5570</td><td align="center" valign="middle" >0.33</td><td align="center" valign="middle"  rowspan="3"  >0.19</td><td align="center" valign="middle"  rowspan="3"  >3</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >775</td><td align="center" valign="middle" >6600</td><td align="center" valign="middle" >0.12</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >730</td><td align="center" valign="middle" >5760</td><td align="center" valign="middle" >0.13</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >15</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >512</td><td align="center" valign="middle" >5570</td><td align="center" valign="middle" >0.09</td><td align="center" valign="middle"  rowspan="3"  >0.14</td><td align="center" valign="middle"  rowspan="3"  >3</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >743</td><td align="center" valign="middle" >6950</td><td align="center" valign="middle" >0.11</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1275</td><td align="center" valign="middle" >5940</td><td align="center" valign="middle" >0.21</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >16</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >3315</td><td align="center" valign="middle" >7790</td><td align="center" valign="middle" >0.43</td><td align="center" valign="middle"  rowspan="4"  >0.27</td><td align="center" valign="middle"  rowspan="4"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >2615</td><td align="center" valign="middle" >6690</td><td align="center" valign="middle" >0.39</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >417</td><td align="center" valign="middle" >6610</td><td align="center" valign="middle" >0.06</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >849</td><td align="center" valign="middle" >4575</td><td align="center" valign="middle" >0.19</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >17</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >1101</td><td align="center" valign="middle" >5730</td><td align="center" valign="middle" >0.19</td><td align="center" valign="middle"  rowspan="4"  >0.41</td><td align="center" valign="middle"  rowspan="4"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >4113</td><td align="center" valign="middle" >7320</td><td align="center" valign="middle" >0.56</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >2491</td><td align="center" valign="middle" >3564</td><td align="center" valign="middle" >0.70</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >359</td><td align="center" valign="middle" >1860</td><td align="center" valign="middle" >0.19</td></tr><tr><td align="center" valign="middle"  rowspan="5"  >18</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >6620</td><td align="center" valign="middle" >14130</td><td align="center" valign="middle" >0.47</td><td align="center" valign="middle"  rowspan="5"  >0.25</td><td align="center" valign="middle"  rowspan="5"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1554</td><td align="center" valign="middle" >7490</td><td align="center" valign="middle" >0.21</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1158</td><td align="center" valign="middle" >7120</td><td align="center" valign="middle" >0.16</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >821</td><td align="center" valign="middle" >7410</td><td align="center" valign="middle" >0.11</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >1296</td><td align="center" valign="middle" >4619</td><td align="center" valign="middle" >0.28</td></tr></tbody></table></table-wrap><table-wrap id="1_3"><table><tbody><thead><tr><th align="center" valign="middle"  rowspan="5"  >19</th><th align="center" valign="middle" >1</th><th align="center" valign="middle" >417</th><th align="center" valign="middle" >2146</th><th align="center" valign="middle" >0.19</th><th align="center" valign="middle"  rowspan="5"  >0.31</th><th align="center" valign="middle"  rowspan="5"  >2</th></tr></thead><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >2165</td><td align="center" valign="middle" >3330</td><td align="center" valign="middle" >0.65</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >558</td><td align="center" valign="middle" >2318</td><td align="center" valign="middle" >0.24</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >227</td><td align="center" valign="middle" >2718</td><td align="center" valign="middle" >0.08</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >947</td><td align="center" valign="middle" >2493</td><td align="center" valign="middle" >0.38</td></tr><tr><td align="center" valign="middle"  rowspan="3"  >20</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >336</td><td align="center" valign="middle" >2239</td><td align="center" valign="middle" >0.15</td><td align="center" valign="middle"  rowspan="3"  >0.45</td><td align="center" valign="middle"  rowspan="3"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >2907</td><td align="center" valign="middle" >4464</td><td align="center" valign="middle" >0.65</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >2094</td><td align="center" valign="middle" >3748</td><td align="center" valign="middle" >0.56</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >21</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >2645</td><td align="center" valign="middle" >5780</td><td align="center" valign="middle" >0.46</td><td align="center" valign="middle"  rowspan="4"  >0.25</td><td align="center" valign="middle"  rowspan="4"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1055</td><td align="center" valign="middle" >5930</td><td align="center" valign="middle" >0.18</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1957</td><td align="center" valign="middle" >7620</td><td align="center" valign="middle" >0.26</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >501</td><td align="center" valign="middle" >4000</td><td align="center" valign="middle" >0.13</td></tr><tr><td align="center" valign="middle"  rowspan="5"  >22</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >936.7</td><td align="center" valign="middle" >6440</td><td align="center" valign="middle" >0.15</td><td align="center" valign="middle"  rowspan="5"  >0.20</td><td align="center" valign="middle"  rowspan="5"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >2366</td><td align="center" valign="middle" >6510</td><td align="center" valign="middle" >0.36</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1222</td><td align="center" valign="middle" >8630</td><td align="center" valign="middle" >0.14</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >787</td><td align="center" valign="middle" >6040</td><td align="center" valign="middle" >0.13</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >1035</td><td align="center" valign="middle" >5060</td><td align="center" valign="middle" >0.20</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >23</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >1896</td><td align="center" valign="middle" >5600</td><td align="center" valign="middle" >0.34</td><td align="center" valign="middle"  rowspan="4"  >0.28</td><td align="center" valign="middle"  rowspan="4"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1635</td><td align="center" valign="middle" >11490</td><td align="center" valign="middle" >0.14</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >2476</td><td align="center" valign="middle" >9070</td><td align="center" valign="middle" >0.27</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >1510</td><td align="center" valign="middle" >4137</td><td align="center" valign="middle" >0.36</td></tr><tr><td align="center" valign="middle"  rowspan="5"  >24</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >2887</td><td align="center" valign="middle" >22910</td><td align="center" valign="middle" >0.13</td><td align="center" valign="middle"  rowspan="5"  >0.18</td><td align="center" valign="middle"  rowspan="5"  >3</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >4287</td><td align="center" valign="middle" >30250</td><td align="center" valign="middle" >0.14</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >4285</td><td align="center" valign="middle" >30830</td><td align="center" valign="middle" >0.14</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >2673</td><td align="center" valign="middle" >10240</td><td align="center" valign="middle" >0.26</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >1600</td><td align="center" valign="middle" >7570</td><td align="center" valign="middle" >0.21</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >25</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >7970</td><td align="center" valign="middle" >15910</td><td align="center" valign="middle" >0.50</td><td align="center" valign="middle"  rowspan="4"  >0.36</td><td align="center" valign="middle"  rowspan="4"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >8440</td><td align="center" valign="middle" >18900</td><td align="center" valign="middle" >0.45</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >989</td><td align="center" valign="middle" >6560</td><td align="center" valign="middle" >0.15</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >528</td><td align="center" valign="middle" >1587</td><td align="center" valign="middle" >0.33</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >26</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >2813</td><td align="center" valign="middle" >8350</td><td align="center" valign="middle" >0.34</td><td align="center" valign="middle"  rowspan="4"  >0.44</td><td align="center" valign="middle"  rowspan="4"  >1</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >6900</td><td align="center" valign="middle" >9720</td><td align="center" valign="middle" >0.71</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >1809</td><td align="center" valign="middle" >7480</td><td align="center" valign="middle" >0.24</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >1291</td><td align="center" valign="middle" >2660</td><td align="center" valign="middle" >0.49</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >27</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >2333</td><td align="center" valign="middle" >9540</td><td align="center" valign="middle" >0.24</td><td align="center" valign="middle"  rowspan="4"  >0.36</td><td align="center" valign="middle"  rowspan="4"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >3596</td><td align="center" valign="middle" >10860</td><td align="center" valign="middle" >0.33</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >6210</td><td align="center" valign="middle" >9830</td><td align="center" valign="middle" >0.63</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >1330</td><td align="center" valign="middle" >6060</td><td align="center" valign="middle" >0.22</td></tr><tr><td align="center" valign="middle"  rowspan="4"  >28</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >3609</td><td align="center" valign="middle" >5470</td><td align="center" valign="middle" >0.66</td><td align="center" valign="middle"  rowspan="4"  >0.35</td><td align="center" valign="middle"  rowspan="4"  >2</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >1082</td><td align="center" valign="middle" >7250</td><td align="center" valign="middle" >0.15</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >3275</td><td align="center" valign="middle" >10000</td><td align="center" valign="middle" >0.33</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >1373</td><td align="center" valign="middle" >5510</td><td align="center" valign="middle" >0.25</td></tr></tbody></table></table-wrap></table-wrap-group></sec><sec id="s3"><title>3. Results and discussion</title><p>Our results show that Mashhad plain have got serious land subsidence which it was documented by field observations (Figures 5-7). Also, there are three levels of active tectonics. Low relative tectonic activities in sub-ba- sins No. 14, 15 and 24, moderate relative tectonic activities in sub-basins No. 2, 5, 6, 7, 9, 10, 13, 16, 18, 19, 21, 22, 23, 25, 27 and 28 and finally high relative tectonic activities in sub-basins no. 1, 3, 4, 8, 11, 12, 17, 20 and 26. Also, the most parts of study area have shown moderate relative tectonic activities.</p><fig id="fig5"  position="float"><label><xref ref-type="fig" rid="fig5">Figure 5</xref></label><caption><title> A view from cracks due to land subsidence in sub-basin No. 6</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/6-1210393x11.png"/></fig><fig id="fig6"  position="float"><label><xref ref-type="fig" rid="fig6">Figure 6</xref></label><caption><title> A close view from a crack in figure 5</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/6-1210393x12.png"/></fig><fig id="fig7"  position="float"><label><xref ref-type="fig" rid="fig7">Figure 7</xref></label><caption><title> A view from a large crack which is related to land subsidence in sub-basin No.7</title></caption><graphic mimetype="image"   position="float"  xlink:type="simple"  xlink:href="http://html.scirp.org/file/6-1210393x13.png"/></fig></sec><sec id="s4"><title>4. Conclusions</title><p>In this research, the transverse topographic symmetry factor has been calculated in the Chekene-Mazavand area, north east Iran. Based on digital elevation model, the study area was divided into 28 sub-basins. Then transverse topographic symmetry factor was calculated for each one. The values of this index are between 0.14 and 0.57, there are low, moderate and high levels of relative tectonic activities. The most parts of study area have shown moderate relative tectonic activities.</p><p>Low relative tectonic activities level has been found in sub-basins No. 14, 15 and 24, moderate relative tectonic activities level has been found in sub-basins No. 2, 5, 6, 7, 9, 10, 13, 16, 18, 19, 21, 22, 23, 25, 27 and high relative tectonic activities level has been found in sub-basins no. 1, 3, 4, 8, 11, 12, 17, 20 and 26. The latter cases are compatible with faulted parts of study area.</p></sec><sec id="s5"><title>Acknowledgements</title><p>This work has funded by Department of Geology, Islamic Azad University, North Tehran Branch, Iran. Also, Special thanks to Dr. Mehran Arian and Dr. Elaheh Javadi Mosavi for their supports.</p></sec><sec id="s6"><title>Cite this paper</title><p>Mohammad RezaSajadian,MohsenPourkermani,ManochehrQorashi,Naser HafeziMoghaddas, (2015) The Analysis of Transverse Topographic Symmetry Factor (T Index) in the Chekene-Mazavand, North East Iran. Open Journal of Geology,05,809-820. doi: 10.4236/ojg.2015.511069</p></sec><sec id="s7"><title>NOTES</title></sec></body><back><ref-list><title>References</title><ref id="scirp.61572-ref1"><label>1</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. (2013) Physiographic-Tectonic Zoning of Iran’s Sedimentary Basins. Open Journal of Geology, 3, 169-177. 
http://dx.doi.org/10.4236/ojg.2013.33020</mixed-citation></ref><ref id="scirp.61572-ref2"><label>2</label><mixed-citation publication-type="other" xlink:type="simple">Qorashi, M. and Arian, M. (2011) Tectonics of Iran. Geologic Survey of Iran, Tehran, 336 p.</mixed-citation></ref><ref id="scirp.61572-ref3"><label>3</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. (2011) Basement Tectonics and Geology of Iran. Asar Nafis Press, Qum, 300 p.</mixed-citation></ref><ref id="scirp.61572-ref4"><label>4</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. (2011) A Preface on Salt Diapirism of Iran. Asar Nafis Press, Qum, 309 p.</mixed-citation></ref><ref id="scirp.61572-ref5"><label>5</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Noroozpour, H. (2015) The Biggest Salt-Tongue Canopy of Central Iran. Open Journal of Geology, 5, 55-60. http://dx.doi.org/10.4236/ojg.2015.52005</mixed-citation></ref><ref id="scirp.61572-ref6"><label>6</label><mixed-citation publication-type="other" xlink:type="simple">Asadian, F., Pourkermani, M. and Arian, M. (2007) Tectonic Geomorphology of Salt Structures in the Garmsar-Lasjerd Area. Geographical Research Quarterly, 39, 75-84.</mixed-citation></ref><ref id="scirp.61572-ref7"><label>7</label><mixed-citation publication-type="other" xlink:type="simple">Pourkermani, M. and Arian, M. (1997) Salt Domes of Central Iran. Journal of Humanities, 3, 29-41.</mixed-citation></ref><ref id="scirp.61572-ref8"><label>8</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. (2012) Salt Diapirism and Tectonics. 2nd Edition, Asar Nafis Press, Qum, 319 p.</mixed-citation></ref><ref id="scirp.61572-ref9"><label>9</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Noroozpour, H. (2015) Tectonic Geomorphology of Iran’s Salt Structures. Open Journal of Geology, 5, 61-72. http://dx.doi.org/10.4236/ojg.2015.52006</mixed-citation></ref><ref id="scirp.61572-ref10"><label>10</label><mixed-citation publication-type="other" xlink:type="simple">Asadian, F. and Arian, M. (2009) Identification of Diapiric Provinces of Central Iran through Geological and Geographical Analysis. International Journal of Agriculture Environment &amp; Biotechnology, 2, 3443-3451.</mixed-citation></ref><ref id="scirp.61572-ref11"><label>11</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. (2012) Clustering of Diapiric Provinces in the Central Iran Basin. Carbonates and Evaporites, 27, 9-18.  
http://dx.doi.org/10.1007/s13146-011-0079-9</mixed-citation></ref><ref id="scirp.61572-ref12"><label>12</label><mixed-citation publication-type="other" xlink:type="simple">Pourkermani, M. and Arian, M. (1998) Tectonic Geomorphology of Salt Domes in West of Zanjan Province, Iran. Geographical Research, 47, 44-53.</mixed-citation></ref><ref id="scirp.61572-ref13"><label>13</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Feizi, F. (2010) The Significance of Faulting on the Surficial Spreading of Evaporitic Deposits in the Varamin-Semnan Area. Journal of Earth and Resources, 3, 1-20.</mixed-citation></ref><ref id="scirp.61572-ref14"><label>14</label><mixed-citation publication-type="other" xlink:type="simple">Feizi, F., Arian, M. and Arian, A. (2015) Mud Diapirism on the Makran, Iran: Case Study on the Napag Mud Volcano. Open Journal of Geology, 5, 300-308. http://dx.doi.org/10.4236/ojg.2015.55027</mixed-citation></ref><ref id="scirp.61572-ref15"><label>15</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Sistanipour, A. (2015) Mud Diapirism on the Gorgan, North Iran. Open Journal of Geology, 5, 442-450.  
http://dx.doi.org/10.4236/ojg.2015.56041</mixed-citation></ref><ref id="scirp.61572-ref16"><label>16</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Khodabakhshnezhad, A. (2015) Sedimentary Environments Can Be Changed by Geotechnology (Case Study: A Morphotectonic Idea for Design of Extensive Artificial Bay on the Iranian Plateau). International Journal of Geosciences, 6, 487-496. http://dx.doi.org/10.4236/ijg.2015.65039</mixed-citation></ref><ref id="scirp.61572-ref17"><label>17</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. (2011) Middle East Tectonics. Asar Nafis Press, Qum, 236 p.</mixed-citation></ref><ref id="scirp.61572-ref18"><label>18</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. (2010) Applied Seismotectonics. Farazamin Press, Tehran, 304 p.</mixed-citation></ref><ref id="scirp.61572-ref19"><label>19</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Maleki, R. (2008) Neotectonics. Farazamin Research Center, Tehran, 150 p.</mixed-citation></ref><ref id="scirp.61572-ref20"><label>20</label><mixed-citation publication-type="other" xlink:type="simple">Pourkermani, M. and Arian, M. (1998) Seismicity of Iran. Shahid Beheshti University Press, Tehran, 212 p.</mixed-citation></ref><ref id="scirp.61572-ref21"><label>21</label><mixed-citation publication-type="other" xlink:type="simple">Pourkermani, M. and Arian, M. (1997) Seismotectonics. Dez Ab Consulting Engineers Company Press, Tehran, 270 p.</mixed-citation></ref><ref id="scirp.61572-ref22"><label>22</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Aram, Z. (2014) Relative Tectonic Activity Classification in the Kermanshah Area, Western Iran. Solid Earth, 5, 1277-1291. http://dx.doi.org/10.5194/se-5-1277-2014</mixed-citation></ref><ref id="scirp.61572-ref23"><label>23</label><mixed-citation publication-type="other" xlink:type="simple">Mashal, M., PourKermani, M., Charchi, A., Almasian, M. and Arian, M. (2013) Pattern of Structural Geology Underground in Eastern of North Dezfol Embayment. Advances in Environmental Biology, 7, 260-268.</mixed-citation></ref><ref id="scirp.61572-ref24"><label>24</label><mixed-citation publication-type="other" xlink:type="simple">Pazhoohan, M., Arian, M., Ghorashi, M. and Khosrotehrani, K. (2014) A Study of Drainage Pattern Responses to Active Tectonics in Tadvan Region? SW Iran. Geodynamics, 1, 36-41. </mixed-citation></ref><ref id="scirp.61572-ref25"><label>25</label><mixed-citation publication-type="other" xlink:type="simple">Rahimi, N. and Arian, M. (2014) Tectonic Geomorphplogy of Kangavar-Sosangerd Region, West Iran. Advances in Environmental Biology, 8, 119-124.</mixed-citation></ref><ref id="scirp.61572-ref26"><label>26</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Hashemi, A. (2008) Seismotectonic Zoning in the Zagros. Journal of Sciences, 18, 63-76.</mixed-citation></ref><ref id="scirp.61572-ref27"><label>27</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Ahmadnia, A., Qorashi, M. and Pourkermani, M. (2002) Structural Analysis of Mengharak Transcurrent Fault System in Zagros, Iran. Special Geo 2002 Conference Issue Geoarabia, 7, 209-210.</mixed-citation></ref><ref id="scirp.61572-ref28"><label>28</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Qorashi, M., Pourkermani, M. and Ahmadnia, A. (2003) Fractal Analysis of Mengharak Transcurrent Fault System in Zagros, Iran. Abstracts of 4th International Conference on Seismology and Earthquake Engineering, Tehran, 12-14 May 2003, 23.</mixed-citation></ref><ref id="scirp.61572-ref29"><label>29</label><mixed-citation publication-type="other" xlink:type="simple">Baharvand, S., Pourkermani, M., Ajalloian, R., Arian, M. and Nouryazdan, A.R. (2010) Seymareh Landslide and Its Role in Environmental and Geomorphologic Changes of the Pole-Dokhtar Area. Journal of the Earth, 4, 13-24.</mixed-citation></ref><ref id="scirp.61572-ref30"><label>30</label><mixed-citation publication-type="other" xlink:type="simple">Abdideh, M., Qorashi, M., Rangzan, K. and Arian, M. (2011) Assessment of Relative Active Tectonics Using Morphometric Analysis, Case Study of Dez River (Southwestern, Iran). Geosciences, 20, 33-46.</mixed-citation></ref><ref id="scirp.61572-ref31"><label>31</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Qorashi, M., Pourkermani, M. and Ahmadnia, A. (2006) The Structural Significance Kareh Bas Transcurrent Fault System in the Zagros Fold and Thrust Belt. Geosciences, 15, 126-133.</mixed-citation></ref><ref id="scirp.61572-ref32"><label>32</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Noroozpour, H. (2015) Seismic Activity and Fractal Geometry of Kareh Bas Fault System in Zagros, South of Iran. Open Journal of Geology, 5, 291-299. http://dx.doi.org/10.4236/ojg.2015.55026</mixed-citation></ref><ref id="scirp.61572-ref33"><label>33</label><mixed-citation publication-type="other" xlink:type="simple">Ehsani, J. and Arian, M. (2015) Quantitative Analysis of Relative Tectonic Activity in the Jarahi-Hendijan Basin Area, Zagros Iran. Geosciences Journal, 19, 1-15. http://dx.doi.org/10.1007/s12303-015-0016-3</mixed-citation></ref><ref id="scirp.61572-ref34"><label>34</label><mixed-citation publication-type="other" xlink:type="simple">Omidali, M., Arian, M. and Sorbi, A. (2015) Neotectonics of Boroujerd Area, SW Iran by Index of Active Tectonics. Open Journal of Geology, 5, 309-324. http://dx.doi.org/10.4236/ojg.2015.55028</mixed-citation></ref><ref id="scirp.61572-ref35"><label>35</label><mixed-citation publication-type="other" xlink:type="simple">Chegini, A., Sorbi, A. and Arian, M. (2015) Active Tectonics of Hamedan Area, West Iran. International Journal of Geography and Geology, 4, 109-128.</mixed-citation></ref><ref id="scirp.61572-ref36"><label>36</label><mixed-citation publication-type="other" xlink:type="simple">Maleki, Z., Arian, M., Solgi, A. and Ganjavian, M.A. (2014) The Elements of Fold Style Analysis in the Khaftar Anticline, Zagros, Iran. Open Journal of Geology, 4, 79-92. http://dx.doi.org/10.4236/ojg.2014.43008</mixed-citation></ref><ref id="scirp.61572-ref37"><label>37</label><mixed-citation publication-type="other" xlink:type="simple">Maleki, Z., Arian, M. and Solgi, A. (2014) Structural Style and Hydrocarbon Trap of Karbasi Anticline, in the Interior Fars Region, Zagros, Iran. Solid Earth Discussions, 6, 2143-2167. http://dx.doi.org/10.5194/sed-6-2143-2014</mixed-citation></ref><ref id="scirp.61572-ref38"><label>38</label><mixed-citation publication-type="other" xlink:type="simple">Ehsani, J., Arian, M. and Ghorashi, M. (2015) Geomorphic Signatures of Active Tectonics in the Jarahi-Hendijan Drainage Basin in the South West Iran. Geosciences, 24, 211-218.</mixed-citation></ref><ref id="scirp.61572-ref39"><label>39</label><mixed-citation publication-type="other" xlink:type="simple">Khodabakhshnezhad, A., Pourkermani, M., Arian, M., Matkan, A.A. and Charchi, A. (2015) Active Tectonics of Great Karoun River Basin. Geosciences, 24, 13-28.</mixed-citation></ref><ref id="scirp.61572-ref40"><label>40</label><mixed-citation publication-type="other" xlink:type="simple">Maleki, Z., Arian, M., Solgi, A. and Ganjavian, M.A. (2015) Elements of Fold Style Analysis in the Karbasi Anticline, Interior Fars Region, Zagros. Geosciences, 24, 293-302.</mixed-citation></ref><ref id="scirp.61572-ref41"><label>41</label><mixed-citation publication-type="other" xlink:type="simple">Baratpour, F., Arian, M. and Solgi, A. (2015) Geometric Analysis of Tukak and Kamarun Anticlines on Izeh Zone, Zagros. Geosciences, 24, 191-200.</mixed-citation></ref><ref id="scirp.61572-ref42"><label>42</label><mixed-citation publication-type="other" xlink:type="simple">Gholamhosein Fard, N., Sorbi, A. and Arian, M. (2015) Active Tectonics of Kangavar Area, West Iran. Open Journal of Geology, 5, 422-441. http://dx.doi.org/10.4236/ojg.2015.56040</mixed-citation></ref><ref id="scirp.61572-ref43"><label>43</label><mixed-citation publication-type="other" xlink:type="simple">Maleki, Z., Arian, M. and Solgi, A. (2015) Folding Pattern in the Fars Province, Zagros Folded Belt: Case Study on the Karbasi and Khaftar Anticlines, Interior Fars, Iran. Solid Earth Discuss, 7, 2347-2379.  
http://dx.doi.org/10.5194/sed-7-2347-2015</mixed-citation></ref><ref id="scirp.61572-ref44"><label>44</label><mixed-citation publication-type="other" xlink:type="simple">Razaghian, G. and Arian, M. (2015) The Emergent Salt Diapirs in the East Zagros, Iran. Open Journal of Geology, 5, 718-726. http://dx.doi.org/10.4236/ojg.2015.510063</mixed-citation></ref><ref id="scirp.61572-ref45"><label>45</label><mixed-citation publication-type="other" xlink:type="simple">Alladin, Y., Talebian, M., Arian, M. and Ahmadi, M.M. (2015) Geotechnical Investigation and Seismic Zonation of Alluvial Deposits in Western Tehran. Geosciences, 24, 333-342.</mixed-citation></ref><ref id="scirp.61572-ref46"><label>46</label><mixed-citation publication-type="other" xlink:type="simple">Taherkhani, B., Nazari, H., Pourkermani, M. and Arian, M. (2015) Geometry and Recent Kinematics of the North Qazvin Fault: Morphotectonic Approach. Geosciences, 24, 29-38.</mixed-citation></ref><ref id="scirp.61572-ref47"><label>47</label><mixed-citation publication-type="other" xlink:type="simple">Manuchehri, H., Arian, M., Ghorashi, M., Solgi, M. and Sorbi, A. (2015) Geomorphic Signatures of Active Tectonics in the Chalus Drainage Basin in the Alborz, Iran. Geosciences, 24, 273-280.</mixed-citation></ref><ref id="scirp.61572-ref48"><label>48</label><mixed-citation publication-type="other" xlink:type="simple">Noroozpour, H., Arian, M. and Sorbi, A. (2015) Fault Movement Potentials in the Tehran-Semnan Region (North Iran). Open Journal of Geology, 5, 281-290. http://dx.doi.org/10.4236/ojg.2015.55025</mixed-citation></ref><ref id="scirp.61572-ref49"><label>49</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Maleki, Z. and Noroozpour, H. (2011) Cenozoic Diastrophism and Deformational Events in the East Central Alborz. Journal of Basic and Applied Scientific Research, 1, 2394-2400.</mixed-citation></ref><ref id="scirp.61572-ref50"><label>50</label><mixed-citation publication-type="other" xlink:type="simple">Feizi, F., Arian, A. and Rahmani, R. (2007) Seismotectonic Zoning in the Eastern Part of the Central Alborz. Journal of Sciences, 17, 151-164.</mixed-citation></ref><ref id="scirp.61572-ref51"><label>51</label><mixed-citation publication-type="other" xlink:type="simple">Khavari, R., Arian, M. and Ghorashi, M. (2009) Neotectonics of the South Central Alborz Drainage Basin, in NW Tehran, N Iran. Journal of Applied Sciences, 9, 4115-4126. http://dx.doi.org/10.3923/jas.2009.4115.4126</mixed-citation></ref><ref id="scirp.61572-ref52"><label>52</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Bagha, N. (2012) Active Tectonics of Tehran Area, Iran. Journal of Basic and Applied Scientific Research, 2, 3805-3819.</mixed-citation></ref><ref id="scirp.61572-ref53"><label>53</label><mixed-citation publication-type="other" xlink:type="simple">Bagha, N., Arian, M., Ghorashi, M., Pourkermani, M., El Hamdouni, R. and Solgi, A. (2014) Evaluation of Relative Tectonic Activity in the Tehran Basin, Central Alborz, Northern Iran. Geomorphology, 213, 66-87.  
http://dx.doi.org/10.1016/j.geomorph.2013.12.041</mixed-citation></ref><ref id="scirp.61572-ref54"><label>54</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Feizi, F. (2005) Application of Geomorphic Indices to the Assessment of Relative Tectonic Activity Levels in the Alborz-Central Iran Border Zone. Journal of Sciences, 15, 378-403.</mixed-citation></ref><ref id="scirp.61572-ref55"><label>55</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Bagha, N., Khavari, R. and Noroozpour, H. (2012) Seismic Sources and Neo-Tectonics of Tehran Area (North Iran). Indian Journal of Science and Technology, 5, 2379-2383.</mixed-citation></ref><ref id="scirp.61572-ref56"><label>56</label><mixed-citation publication-type="other" xlink:type="simple">Moghimi, H., Arian, M. and Sorbi, A. (2015) Fault Movement Potential of Marzanabad Area, North Alborz, Iran. Open Journal of Geology, 5, 126-135. http://dx.doi.org/10.4236/ojg.2015.53012</mixed-citation></ref><ref id="scirp.61572-ref57"><label>57</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Pourkermani, M. (2004) Tectonic Elements of South Flank in the East-Central Alborz Mountain. Journal of Sciences, Teacher Training University, 4, 359-368.</mixed-citation></ref><ref id="scirp.61572-ref58"><label>58</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Qorashi, M. (2006) The Movement Potential Evaluation of the Major Quaternary Faults in Alborz-Central Iran Border Zone, from the East of Tehran to the East of Semnan. Journal of Geosciences, Geological Survey of Iran, 15, 184-188.</mixed-citation></ref><ref id="scirp.61572-ref59"><label>59</label><mixed-citation publication-type="other" xlink:type="simple">Poroohan, N., Pourkermani, M. and Arian, M. (2013) An Assessment of Relationship in F-Parameter and Paleostress Fields in Heterogeneous Lithologies: Roudbar Area (Northwest of Iran). Australian Journal of Basic &amp; Applied Sciences, 7, 933-942.</mixed-citation></ref><ref id="scirp.61572-ref60"><label>60</label><mixed-citation publication-type="other" xlink:type="simple">Poroohan, N., Poukermani, M. and Arian, M. (2009) An Assessment on Correlations of Seismotectonic Parameters Preceding and Following Roudbar-Manjil Earthquake (Gilan, North of Iran). Australian Journal of Basic &amp; Applied Sciences, 3, 2643-2652.</mixed-citation></ref><ref id="scirp.61572-ref61"><label>61</label><mixed-citation publication-type="other" xlink:type="simple">Farrokhnia, A.R., Pirasteh, S., Pourkermani, M. and Arian, M. (2011) Geo-Information Technology for Mass Wasting Hazard Zonation: Central-West Alborz-Iran. Disaster Advances, 4, 24-33.</mixed-citation></ref><ref id="scirp.61572-ref62"><label>62</label><mixed-citation publication-type="other" xlink:type="simple">Khavari, R., Ghorashi, M. and Arian, M. (2009) Assessment of Relative Active Tectonics, South Central Alborz (North Iran). EGU General Assembly Conference Abstracts, 11, 1137.</mixed-citation></ref><ref id="scirp.61572-ref63"><label>63</label><mixed-citation publication-type="other" xlink:type="simple">Sorbi, A., Arian, M. and Pourkermani, M. (2009) The Movement Potential Evaluation of the Major Quaternary Faults in Tehran Quadrangle. Journal of the Earth, 19, 176-182.</mixed-citation></ref><ref id="scirp.61572-ref64"><label>64</label><mixed-citation publication-type="other" xlink:type="simple">Feizi, F. and Arian, M. (2006) The Classification of Thrust Fronts in the Alborz-Central Iran Border Zone from the East of Varamin to the East of Semnan. Journal of Sciences, 16, 75-87.</mixed-citation></ref><ref id="scirp.61572-ref65"><label>65</label><mixed-citation publication-type="other" xlink:type="simple">Sadeghi, R., Saeedi, A., Arian, M., Ghorashi, M. and Solgi, A. (2015) Comparison of Strain Ellipsoid Shape in the South of Ardabil Range (NW), Based on the Results of the Magnetic Susceptibility Anisotropy and Paleostress Methods. Open Journal of Geology, 5, 611-622. http://dx.doi.org/10.4236/ojg.2015.59054</mixed-citation></ref><ref id="scirp.61572-ref66"><label>66</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Pourkermani, M. (2004) Structural Significance of North Semnan and Attary Faults in Alborz-Central Iran Border Zone. Journal of Science, 14, 4551-4569.</mixed-citation></ref><ref id="scirp.61572-ref67"><label>67</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Pourkermani, M. (2005) Cenozoic Diastrophism and Deformational Events in the Southern Flank of Central-East Alborz. Journal of Faculty Earth Sciences, 10, 43-51.</mixed-citation></ref><ref id="scirp.61572-ref68"><label>68</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Pourkermani, M., Qorashi, M. and Ghasemi, M.R. (2003) North Semnan Fault System and Its Role on Basin Division. 8th Symposium of Geological Society of Iran, Shahrood, 4-6 September 2003, 11-17.</mixed-citation></ref><ref id="scirp.61572-ref69"><label>69</label><mixed-citation publication-type="other" xlink:type="simple">Pourkermani, M. and Arian, M. (2001) Structural Geomorphology of Northeastern Kurdistan. Journal of Humanities, 7, 37-48.</mixed-citation></ref><ref id="scirp.61572-ref70"><label>70</label><mixed-citation publication-type="other" xlink:type="simple">Mardani, Z., Ghorashi, M. and Arian, M. (2011) Geomorphic Signatures of Active Tectonics in the Talaghan Rud, Shah Rud and Sefidrud Drainage Basins in Central Alborz, N Iran. Geosciences, 20, 159-166.</mixed-citation></ref><ref id="scirp.61572-ref71"><label>71</label><mixed-citation publication-type="other" xlink:type="simple">Sorbi, A., Arian, M. and Pourkermani, M. (2011) The Application of Geomorphic Indices to the Assessment of Relative Tectonic Activity Levels in Tehran Quadrangle. Journal of the Earth, 6, 1-9.</mixed-citation></ref><ref id="scirp.61572-ref72"><label>72</label><mixed-citation publication-type="other" xlink:type="simple">Khavari, R., Ghorashi, M., Arian, M. and Khosrotehrani, K. (2010) Geomorphic Signatures of Active Tectonics in the Karaj Drainage Basin in South Central Alborz, N, Iran. Geosciences, 19, 67-74.</mixed-citation></ref><ref id="scirp.61572-ref73"><label>73</label><mixed-citation publication-type="other" xlink:type="simple">Javadi Mousavi, E. and Arian, M. (2015) Tectonic Geomorphology of Atrak River, NE Iran. Open Journal of Geology, 5, 106-114. http://dx.doi.org/10.4236/ojg.2015.53010</mixed-citation></ref><ref id="scirp.61572-ref74"><label>74</label><mixed-citation publication-type="other" xlink:type="simple">Nouri, R., Jafari, M.R., Arian, M., Feizi, F. and Afzal, P. (2013) Correlation between Cu Mineralization and Major Faults Using Multifractal Modelling in the Tarom Area (NW Iran). Geologica Carpathica, 64, 409-416.  
http://dx.doi.org/10.2478/geoca-2013-0028</mixed-citation></ref><ref id="scirp.61572-ref75"><label>75</label><mixed-citation publication-type="other" xlink:type="simple">Nouri, R., Jafari, M.R., Arian, M., Feizi, F. and Afzal, P. (2013) Prospection for Copper Mineralization with Contribution of Remote Sensing, Geochemical and Mineralographical Data in Abhar 1:100,000 Sheet, NW Iran. Archives of Mining Sciences, 58, 1071-1084. http://dx.doi.org/10.2478/amsc-2013-0074</mixed-citation></ref><ref id="scirp.61572-ref76"><label>76</label><mixed-citation publication-type="other" xlink:type="simple">Nouri, R., Afzal, P., Arian, M., Jafari, M. and Feizi, F. (2013) Reconnaissance of Copper and Gold Mineralization Using Analytical Hierarchy Process in the Rudbar 1: 100,000 Map Sheet, Northwest Iran. Journal of Mining and Metallurgy, 49, 9-19.</mixed-citation></ref><ref id="scirp.61572-ref77"><label>77</label><mixed-citation publication-type="other" xlink:type="simple">Farrokhnia, A.R., Pirasteh, S., Pradhan, B., Pourkermani, M. and Arian, M. (2011) A Recent Scenario of Mass Wasting and Its Impact on the Transportation in Alborz Mountains, Iran Using Geo-Information Technology. Arabian Journal of Geosciences, 4, 1337-1349. http://dx.doi.org/10.1007/s12517-010-0238-7</mixed-citation></ref><ref id="scirp.61572-ref78"><label>78</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Nouri, R. (2015) Lineament Tectonics and Mineralization in Tarom Area, North Iran. Open Journal of Geology, 5, 115-124. http://dx.doi.org/10.4236/ojg.2015.53011</mixed-citation></ref><ref id="scirp.61572-ref79"><label>79</label><mixed-citation publication-type="other" xlink:type="simple">Feizi, F. and Arian, M. (2011) The Role of Structural Controllers in Geneses of Copper Deposits in 1:50000 Map of Saiin Qaleh. Journal of Sciences, 21, 1-10.</mixed-citation></ref><ref id="scirp.61572-ref80"><label>80</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Qorashi, M. and Ahmadnia, A. (2003) Analysis of Behbahan Shear Zone. Iranian Journal of Geology, 1, 1-4.</mixed-citation></ref><ref id="scirp.61572-ref81"><label>81</label><mixed-citation publication-type="other" xlink:type="simple">Bahiraee, S, Arian, M., Qorashi, M. and Solgi, M. (2015) The Movement Potential Evaluation of the Mosha Fault (the West of Firoozkuh to the Shahrestanak). Geosciences, 24, 123-126.</mixed-citation></ref><ref id="scirp.61572-ref82"><label>82</label><mixed-citation publication-type="other" xlink:type="simple">Bagha, N., Ghorashi, M., Arian, M., Pourkermani, M. and Solgi, A. (2015) Neotectonic Analysis of Mosha-North Tehran Fault Zone, Based on Morphotectonic Features, Central Alborz, Northern Iran. Geosciences, 24, 41-52.</mixed-citation></ref><ref id="scirp.61572-ref83"><label>83</label><mixed-citation publication-type="other" xlink:type="simple">Mosavi, E. and Arian, M. (2015) Neotectonics of Kashaf Rud River, NE Iran by Modified Index of Active Tectonics (MIAT). International Journal of Geosciences, 6, 776-794. http://dx.doi.org/10.4236/ijg.2015.67063</mixed-citation></ref><ref id="scirp.61572-ref84"><label>84</label><mixed-citation publication-type="other" xlink:type="simple">Nouri, R. and Arian, M. (2015) Structural Control on the Distribution of Hydrothermal Alteration Zones and Mineralization in Dastjerdeh Area Based on Remote Sensing Data, NW Iran. Bulletin of the Georgian National Academy of Sciences, 9, 79-86.</mixed-citation></ref><ref id="scirp.61572-ref85"><label>85</label><mixed-citation publication-type="other" xlink:type="simple">Sistanipour, A. and Arian, M. (2015) Geometric Analysis of Davaran Fault System, Central Iran. Open Journal of Geology, 5, 458-469. http://dx.doi.org/10.4236/ojg.2015.56043</mixed-citation></ref><ref id="scirp.61572-ref86"><label>86</label><mixed-citation publication-type="other" xlink:type="simple">Nazemi, M., Ghorashi, M., Ghassemi, M.R. and Arian, M. (2015) Morphotectonics Features of Alluvial Fans Associated with Active Tectonics (Shotori Mountains, East of Tabas-Central Iran). Geosciences, 24, 91-100.</mixed-citation></ref><ref id="scirp.61572-ref87"><label>87</label><mixed-citation publication-type="other" xlink:type="simple">Alizadeh, H. and Arian, M. (2015) Rule of Structural Factors in Formation of Porphyry Copper Deposits in South Western Part of Kerman Area, Iran. Open Journal of Geology, 5, 489-498. http://dx.doi.org/10.4236/ojg.2015.57045</mixed-citation></ref><ref id="scirp.61572-ref88"><label>88</label><mixed-citation publication-type="other" xlink:type="simple">Javadi Mosavi, E. and Arian, M. (2015) Neotectonics of Tabas Area, Central Iran by Index of Active Tectonics (IAT). Open Journal of Geology, 5, 209-223. http://dx.doi.org/10.4236/ojg.2015.54019</mixed-citation></ref><ref id="scirp.61572-ref89"><label>89</label><mixed-citation publication-type="other" xlink:type="simple">Jamalian Daryani, N., Arian, M. and Rashidnezhad Omran, N. (2015) Tectonics and Mineralization of Copper in the Ardestan-Kahang area, Central Iran by Remote Sensing. Open Journal of Geology, 5, 188-196.  
http://dx.doi.org/10.4236/ojg.2015.54017</mixed-citation></ref><ref id="scirp.61572-ref90"><label>90</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. and Pourkermani, M. (2001) Rivers Morphology and Active Tectonic (Reviewing the Current Status of Ghezel Ozon River in the Province of Zanjan). 5th Conference of Geological Society of Iran, Tehran, 28-30 August 2001, 556.</mixed-citation></ref><ref id="scirp.61572-ref91"><label>91</label><mixed-citation publication-type="other" xlink:type="simple">Eshghi, Z., Arian, M. and Pourkermani, M. (2012) Structural Investigation on the Lak Mining Area (Bueen Zahra) Based on Remote Sensing, Used for Its Mineralization. Journal of the Earth, 6, 145-155.</mixed-citation></ref><ref id="scirp.61572-ref92"><label>92</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Toudeshki, V.H. and Noroozpour, H. (2011) Active Tectonics of Qezel Ozan River Basin, NW Iran. Journal of Applied Environmental and Biological Sciences, 1, 291-295.</mixed-citation></ref><ref id="scirp.61572-ref93"><label>93</label><mixed-citation publication-type="other" xlink:type="simple">Alizadeh, H., Arian, M., Lotfi, M., Ghorashi, M. and Ghorbani, M. (2015) Determination of Porphyry Copper Deposit Locations Using Photo Lineament Factor in Northern Parts of the Dehaj-Sardoiyeh Belt. Geosciences, 24, 247-252.</mixed-citation></ref><ref id="scirp.61572-ref94"><label>94</label><mixed-citation publication-type="other" xlink:type="simple">Housini Toudeshki, V., Pourkermani, M., Arian, M. and Khosrotehrani, K.H. (2011) Influence of Structures on the Ghezel Ozan River. Geosciences, 21, 55-60.</mixed-citation></ref><ref id="scirp.61572-ref95"><label>95</label><mixed-citation publication-type="other" xlink:type="simple">Housini Toudeshki, V. and Arian, M. (2011) Morphotectonic Analysis in the Ghezel Ozan River Basin, NW Iran. Journal of Geography and Geology, 3, 258-260. http://dx.doi.org/10.5539/jgg.v3n1p258</mixed-citation></ref><ref id="scirp.61572-ref96"><label>96</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M. (2015) Seismotectonic-Geologic Hazards Zoning of Iran. Earth Sciences Research Journal, 19, 7-13.  
http://dx.doi.org/10.15446/esrj.v19n1.40664</mixed-citation></ref><ref id="scirp.61572-ref97"><label>97</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Pourkermani, M., Sistanipour, A. and Noroozpour, H. (2011) Kinematic Significance of Fold- and Fault-Related Fracture Systems in the Rafsanjan’s Northeast Highlands (Central Iran). Journal of Basic and Applied Scientific Research, 1, 3398-3406.</mixed-citation></ref><ref id="scirp.61572-ref98"><label>98</label><mixed-citation publication-type="other" xlink:type="simple">Arian, M., Pourkermani, M., Sistanipour, A. and Noroozpour, H. (2011) Seismicity and Fault Segmentation of Bafq-Baghin Fault System (Central Iran). Journal of Applied Environmental and Biological Sciences, 1, 382-396.</mixed-citation></ref><ref id="scirp.61572-ref99"><label>99</label><mixed-citation publication-type="other" xlink:type="simple">Javadi Mosavi, E., Arian, M., Ghorashi, M. and Nazemi, M. (2012) Measurements of Geomorphic Indices in Tabas Area. Journal of the Earth, 7, 213-225.</mixed-citation></ref><ref id="scirp.61572-ref100"><label>100</label><mixed-citation publication-type="journal" xlink:type="simple"><name name-style="western"><surname>Arian</surname><given-names> M. </given-names></name>,<etal>et al</etal>. (<year>2010</year>)<article-title>Earthquake-Fault Hazard Investigations in the Kerman Quadrangle</article-title><source> Journal of Sciences</source><volume> 19</volume>,<fpage> 176</fpage>-<lpage>182</lpage>.<pub-id pub-id-type="doi"></pub-id></mixed-citation></ref><ref id="scirp.61572-ref101"><label>101</label><mixed-citation publication-type="other" xlink:type="simple">Cox, R.T. (1994) Analysis of Drainage Basin Symmetry as a Rapid Technique to Identify Areas of Possible Quaternary Tilt Block Tectonics: An Example from the Mississippi Embayment. Geological Society American Bulletin, 106, 571-581. http://dx.doi.org/10.1130/0016-7606(1994)106&lt;0571:AODBSA&gt;2.3.CO;2</mixed-citation></ref></ref-list></back></article>