Paper Information

Journal:   JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)   FALL 2006 , Volume 16 , Number 61 (GEOLOGY ISSUE); Page(s) 27 To 40.
 
Paper: 

THE ELEMENTS OF FOLD STYLE ANALYSIS IN THE SORMEH ANTICLINE (ZAGROS)

 
 
Author(s):  ARIAN M.*, HAJIAN MAHMOUD
 
* GEOLOGY DEPARTMENT, SCIENCE AND RESEARCH CAMPUS, ISLAMIC AZAD UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Sormeh anticline (with 50 km length and 9-14 km width) is a NW-SE anticline in the sub-coastal Fars structural zone (Zagros simple fold belt). Asmari formation and Bangestan Group are cropping out in the cores of more anticlines in the area under investigation. But, abnormally cropping out of the older formations (to Ordovician shale) in the west part of Sormeh anticline, causethat anticline had been Analyzed.
Because, there is a unique outcrop of Dashtak formation that is an important cap rock in the Fars area.
We have investigated the elements of fold style and folding mechanism in the West and East part of Sormeh anticline. Therefore more, uplifting of the west part, cropping out of lower Paleozoic rock units and changing the fold style are due to ramping a blind thrust in the west part of Sormeh anticline. In addition, Morphologic and seismic evidence are implying that Sormeh anticline can be considered as an active anticline.

 
Keyword(s): SORMEH ANTICLINE, ZAGROS, FOLD STYLE, DASHTAK FORMATION
 
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