نتایج جستجو برای: slip and strike slip faults

تعداد نتایج: 16834020  

Journal: :فیزیک زمین و فضا 0
رضا حیدری دانشگاه آزاد اسلامی- واحد علوم و تحقیقات، دانشجوی دکتری نوربخش میرزایی مؤسسه ژئوفیزیک دانشگاه تهران، دانشیار

the zagros fold- thrust belt as a part of alpine- himalayan orogenic belt, is one of the most active continental collision zones on the earth, which extends from the tarus mountains in south eastern turkey to the minab fault in the east of the strait of hormoz in southern iran. structurally, its formation is related to the continuing convergent movement between the arabian plate to the southwes...

Journal: :journal of tethys 0

a doublet of earthquakes with magnitudes of 6.5 and 6.2 in mw scale (global cmt) on 2010 december 20 and 2011 january 27 respectively struck the area that lies between the nehbandan and jiroft fault systems, southeast of iran. these earthquakes occurred in correspondence of the southwestern termination of the kahourak right lateral strike slip fault. the focal mechanisms of both the mainshocks ...

ژورنال: کواترنری ایران 2019
Almasian, Mahmoud, Pourkermani, Mohsen , Shahidi, Alireza , Zohrieh, Amir,

Introduction:    The study area has various types of geological structures, especially various types of fractures and folds. Evidence indicates that Structures with specific mechanisms in this area have been affected by Compressional - Tensile tensions.   Materials and methods:   To determine the direction of stress in the fault zone north of Tehran, from various tectonic evidences i...

2014
J.-P. Avouac F. Ayoub S. Wei J.-P. Ampuero L. Meng S. Leprince R. Jolivet Z. Duputel D. Helmberger Jean-Philippe Avouac Francois Ayoub Shengji Wei Jean-Paul Ampuero Lingsen Meng Sebastien Leprince Romain Jolivet Zacharie Duputel Don Helmberger

1 a r t i c l e i n f o a b s t r a c t Keywords: Balochistan earthquake Chaman fault Makran megathrust earthquake source model image geodesy We analyse the Mw 7.7 Balochistan earthquake of 09/24/2013 based on ground surface deformation measured from sub-pixel correlation of Landsat-8 images, combined with back-projection and finite source modeling of teleseismic waveforms. The earthquake nucle...

2003
Michael Taylor An Yin Frederick J. Ryerson Paul Kapp Lin Ding

[1] Geologic investigations of how the Tibetan plateau is currently deforming have focused primarily on its boundary faults. Consequently, how the interior of the plateau deforms remains poorly understood. To fill this gap in knowledge, we conducted field mapping, analysis of remote sensing and digital topographic data, and reinterpretation of existing geologic maps in central Tibet. This study...

Journal: :journal of mining and environment 2015
m. noroozi r. kakaie seyed m. e jalali

fault zones and fault-related fracture systems control the mechanical behaviors and fluid-flow properties of the earth’s crust. furthermore, nowadays, modeling is being increasingly used in order to understand the behavior of rock masses, and to determine their characteristics. in this work, fault zones and fracture patterns are reviewed, and also comprehensive studies are carried out on the fr...

Journal: :Geophysical Journal International 1976

Lat-Blukan district situated on N-Qazvin and western Alborz zone contains various extrusive and intrusive bodies with Eocene age. They are divided into three main facies that are volcaniclastic deposits (including tuff, lapilli tuff, agglomerate, tuffaceous sandstone and shale and also the carbonate intercalations), the trachyandesitic lava flows and subvolcanic bodies (including dioritic bodie...

Journal: :Science 2003
Greg Anderson Brad Aagaard Ken Hudnut

Faults in complex tectonic environments interact in various ways, including triggered rupture of one fault by another, that may increase seismic hazard in the surrounding region. We model static and dynamic fault interactions between the strike-slip and thrust fault systems in southern California. We find that rupture of the Sierra Madre-Cucamonga thrust fault system is unlikely to trigger rupt...

2012
Yehuda Ben-Zion

We demonstrate that observed contrasts of upper crustal structures across large continental strike-slip faults are sufficient to produce artificial vertical Moho offsets of several kilometers in studies using laterally homogenous models. This can have significant impact on efforts to understand how the observed surface displacement is accommodated in the deep crust. An existing hypothesis that ...

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