TITLE:
A Study of the Relationship between Landslide and Active Tectonic Zones: A Case Study in Karaj Watershed Management
AUTHORS:
Rahman Sharifi, Ali Solgi, Mohsen Pourkermani
KEYWORDS:
Nilsen Method; Slide Zones; Active Tectonic; Landslide; Active Tectonic Hazard Zonation Map
JOURNAL NAME:
Open Journal of Geology,
Vol.3 No.3,
July
11,
2013
ABSTRACT: This research shows a noticeable comparison
between slide zones produced with the results using the Nilsen method with
active tectonic hazard zonation map. A determination landform of geometry or
morphometry factors is one of the best methods for study and evaluation active
tectonics. The first image provided is a Dem maps from GIS software showing
topography, geology and tectonic maps participant with field activities. The
second image provided shows an active tectonic map also generated by the same
above mentioned factors into three classes A, B, C, D and a landslide hazard
zonation map which shows five classes: Stable zone, generally stable zone,
stable moderately stable zone, moderately stable zone and talented to
liquefaction zone. The study and comparison and conformity landslide hazard zonation
map with hazard zonations into active tectonic hazard zonation map showed about
79 percent (56,880 hectare) moderately unstable zone and talented for liquefaction
zone settled in A zone (very high tectonic activity) and B zone (high tectonic
activity) active tectonic map and 21 percent (15,130 hectare) remain
unsettled sequential 12 percent (8640 hectare) and 9 percent (6480 hectare) in
C (moderate tectonic activity), D (lowest tectonic activity) zone of active
tectonic hazard zonation produced from above mentioned factors. This research
showed a relationship between slide zones produced in landslide hazard
zonations using the Nilsen method to measure active tectonic hazard zonation in
the study region.