Scientific Quarterly Journal of Geosciences

Scientific Quarterly Journal of Geosciences

Geotectonic Investigation of Early Paleozoic Magmatism inUrumieh- Dokhtar Zone (South of Kashan)

Document Type : Original Research Paper

Authors
S. M. Tabatabaeimanesh
H. Safaei
A. S. Mirlohi
Department of Geology, University of Isfahan, Isfahan, Iran
10.22071/gsj.2010.54588
Abstract
In south of Kashan, early Paleozoic volcanic rocks are a part of Ghohrudmountains. In Iran structural- sedimentary division, these volcanic rocks located inUrumieh- Dokhtar zone. These volcanic rocks are basic to semibasic and mostly involved basalt. Geochemical investigations of these rocks show the alkaline nature and the intra-continental rift geotectonic setting in their formation time. The Isfahan fault is a north-trending fault across the Sanandaj-Sirjan zone. This fault is one of the old and basement fault that was active in the early Paleozoic. The unique present of Silurian volcanic rocks in this area can refer to the activation of the north part of this fault that was created by extension phases after Caledonian orogeny.
Keywords
Geotectonic
Magmatism
Silurian
Urumieh- Dokhtar
Kashan
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Scientific Quarterly Journal of Geosciences
Volume 20, Issue 78
Autumn 2011
Pages 47-52