Scientific Quarterly Journal of Geosciences

Scientific Quarterly Journal of Geosciences

The Structural Significance of Kareh Bas Transcurrent Fault System in Zagros Fold and Thrust Belt

Document Type : Original Research Paper

Authors
Mehran Arian 1
Manouchehr Ghorashi 2
Mohsen Pourkermani 3
Abdolhossein Ahmadnia 4
1 Department of Geology, Islamic Azad University, Science and Research Branch , Tehran, Iran
2 Research Institute for Earth Sciences , Geological Survey of Iran , Tehran, Iran
3 Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran
4 Exploration Management, NIOC, Tehran, Iran
Abstract
Kareh Bas fault system with a total length of more than 200 km is a nearly N-S trending transverse fault system  in Zagros fold and thrust belt. This system is situated about 40 km in the west of Shiraz.
Having a right-lateral strike slip fault system and based on its geometry, it consists of six structural segments.
In this paper for the first time, the type and attitude of Mountain Front Fault (MFF) have been determined by data integration and Kareh Bas fault system, that caused approximately 109 km strike separation of MFF, has also been introduced as a transcurrent fault system. In addition, the role of this fault system in the basin partitioning, thickness and facies controlling of sediments since Middle Cretaceous is discussed. Finally, fractal dimensions have been analyzed on spot space image maps.
Keywords
Segmentation
Fractal
Kareh Bas
Zagros
Mountain front fault (MFF)

Subjects

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Scientific Quarterly Journal of Geosciences
Volume 15, Issue 58
Winter 2006, Vol. 15, No.58
Winter 2006
Pages 126-133