TITLE:
Petrology and Geochemistry of Dikes in the North of Saveh in Iran
AUTHORS:
Mohammad-Hassan Bazoobandi, Mohammad-Ali Arian, Mohammad-Hashem Emami, Gholamreza Tajbakhsh, Abdollah Yazdi
KEYWORDS:
Swarm Dikes, Alkaline and Calc-Alkaline, Saveh, Iran
JOURNAL NAME:
Open Journal of Marine Science,
Vol.6 No.2,
March
9,
2016
ABSTRACT: Dikes in the north of
Saveh are located in a region with an area of approximately 200 square
kilometers, in a distance of
approximately 100 kilometers south of Tehran. Dikes mentioned in terms of
petrological composition, are divided into two categories: alkaline and
intermediate to acidic. Alkaline dikes include: andesitic basalt and andesite
and intermediate to acidic dikes include: trachyte and trachyandesite. In terms of
geochemical, dikes in the north of Saveh have a dual nature of alkaline and
calc-alkaline. Both groups are derived from more enrichment source than
primitive mantle. Despite similarity of pattern of both groups, varieties of
alkaline having less silica, in the elements Sr, Ti, Nb and Ta show more
enrichment and in the elements Hf, Rb, Th, K show less enrichment than
varieties of calc-alkaline.