نتایج جستجو برای: urmia fault zone

تعداد نتایج: 174284  

Journal: :journal of sciences, islamic republic of iran 2011
h. hajialibeigi

the khushab anticline is located in the zagros fold-thrust belt in the lurestan. this anticline is affected by the balarud fault zone, which is a part of mountain front fault between the lurestan and dezful embayment zones. based on the measurement of the elements of fold style, this anticline is analyzed. according to these measurements, this anticline is a noncylindrical, asymmetrical and dis...

2015
Nasser Hajipour Mousa Tavassoli Tahmineh Gorgani-Firouzjaee Soraya Naem Behzad Pourreza Kia Bahramnejad Jafar Arjmand

BACKGROUND Hedgehogs are small, nocturnal mammals which become popular in the world and have important role in transmission of zoonotic agents. Thus, the present study aimed to survey ectoparasite infestation from April 2010 to December 2011 in urban and suburban parts of Urmia and Tabriz Cities, Northwest of Iran. METHODS A total number of 84 hedgehogs (40 females and 44 males) were examined...

2012
Yihe Huang Jean-Paul Ampuero

The damaged rock around mature faults forms a zone of low seismic wave 24 velocities, which can perturb important earthquake rupture properties. In particular, waves 25 reflected within the fault zone structure can induce short-duration slip pulses, an apparently 26 predominant earthquake rupture mode. Another known mechanism to generate slip pulses is 27 strong velocity-weakening friction. Her...

Journal: Geopersia 2017

The North Tabriz Fault is seismologically an active fault with current right lateral strike-slip movements. Restricted mafic to intermediate Late Cretaceous igneous rocks are exposed along the North Tabriz Fault. Whole rock samples and clinopyroxene phenocrysts geochemistry were studied in order to characterize the petrogenesis of these mafic rocks and their possible relation to an oceanic crus...

1999
Felix Waldhauser William L. Ellsworth Alex Cole

A high-resolution relative earthquake location procedure is used to image the fine-scale seismicity structure of the northern Hayward fault, California. The seismicity defines a narrow, near-vertical fault zone containing horizontal alignments of hypocenters extending along the fault zone. The lineations persist over the 15-year observation interval, implying the localization of conditions on t...

2014
Eric O. Lindsey Yuri Fialko Yehuda Bock David T. Sandwell Roger Bilham

We investigate the spatial pattern of surface creep and off-fault deformation along the southern segment of the San Andreas Fault using a combination of multiple interferometric synthetic aperture radar viewing geometries and survey-mode GPS occupations of a dense array crossing the fault. Radar observations from Envisat during the period 2003–2010 were used to separate the pattern of horizonta...

Journal: :فیزیک زمین و فضا 0
مجید نعمتی استادیار، دانشگاه باهنر کرمان، دانشکده علوم، بخش زمین شناسی، کرمان، ایران و استادیار، سازمان زمین شناسی و اکتشافات معدنی کشور، تهران، ایران مرتضی طالبیان استادیار، سازمان زمین شناسی و اکتشافات معدنی کشور، تهران، ایران احمد سدیدخوی استادیار، موسسه ژئوفیزیک دانشگاه تهران، ایران نوربخش میرزائی دانشیار، موسسه ژئوفیزیک دانشگاه تهران، ایران محمدرضا قیطانچی استاد، موسسه ژئوفیزیک دانشگاه تهران، ایران

the investigation of this paper focuses on eastern part of shahroud fault system in middle-east alborz. this fault system is an important part in the seismotectonic map of the area. we used two local temporary dense seismological networks data installed around the fault system for several months during 2007 and 2008 and simultaneously micro-earthquakes data recorded by the permanent seismologic...

2018
Norio Matsumoto Norio Shigematsu

In-situ permeability of the Median Tectonic Line (MTL) fault zone in Mie Prefecture, southwest Japan, was estimated using hydraulic tests and groundwater pressure observations in two boreholes. The screen depths in Holes 1 and 2 are located, respectively, in a major strand of the MTL fault zone within the Sambagawa metamorphic rocks and a branching fault developed in the hanging wall of the MTL...

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