نتایج جستجو برای: nw zagros
تعداد نتایج: 11067 فیلتر نتایج به سال:
Quantified balanced and restored crustal cross-sections across the NW Zagros Mountains are presented in this work integrating geological and geophysical local and global datasets. The balanced crustal cross-section reproduces the surficial folding and thrusting of the thick cover succession, including the near top of the Sarvak Formation (∼ 90 Ma) that forms the top of the restored crustal cros...
We map the lateral variations of P-wave velocity beneath Zagros collision zone in Iran down to 800 km depth by regional travel time tomography. invert 32,293 relative residuals from five temporary seismic networks across NW and central northern Iran, a large number permanent stations distributed over Iranian Plateau. A salient feature our model is ~225 thick lithosphere Zagros, almost twice as ...
The authors propose that a heat-driven circulation from the Zagros Plateau has a significant impact on the climate of the Middle East Plain (MEP), especially summertime winds, air temperature, and aridity. This proposal is examined in numerical experiments with a regional climate model. Simulations in which the Zagros Plateau was assigned a highly reflective, “snowlike” albedo neutralized the h...
the nw-se trending zagros fold and thrust belt extends for about 1,800 km from a location some 300 km se of the east anatolian fault in ne turkey to the strait of hormuz where the north-south trending zendan-minab-palami fault system (zmp) separates the zagros belt from the makran accretionary prism. the ne limit of the zagros belt is marked by the main zagros reverse fault which is rotated abo...
Ahwas sandstone and Kalhur evaporate members are two main constituents of the best reservoir unit of Zagros region, i.e. Asmari Formation. Poorly cemented to loose nature of the sandstone member and it’s well textural maturity provide highly porous and permeable zones, whereas highly compacted nature of the evaporate member provide impermeable zones in the reservoir. This paper aims to study th...
The oblique collision between the northeastern margin of Arabian platform and Iranian microcontinent has led to transpressional deformation in Zagros orogenic belt central part Alpine–Himalayan belt. Although previous articles have emphasized dextral sense shear belt, this paper, using several indicators kinematic upon field checking microscopic thin-section studies, evidence development a sini...
Abstract Hormuz salt formation is considered the origin of evaporated deposits in Zagros and its ductile behavior has been known as reason for inhomogeneous deformation Zagros. However, our knowledge about this limited to domes on surface. In study, local earthquakes recorded by a temporary dense seismological network 17 stations, deployed southern margin Simply Folded Belt (SFB) southwestern I...
Metamorphic and various intrusive rocks in the Urmia area are located in a transpressed active continental margin. These complexes in the Zagros orogen were deformed during an oblique convergence scenario between the Arabian and Sanandaj–Sirjan blocks in NW Iran. The Urmia area contains both NW-SE striking dextral strike-slip and SW verging NE dipping ductile reverse shear fabrics. Ductile shea...
The Bitlis-Zagros Fold-Thrust Belt is one of the world?s largest deformation zones, extending from Eastern Mediterranean in southern Turkey to south Iran. This zone partitioned between different structures; however, little known about relative activities these structures and their effects on topography. An area located northern part Bitlis- Zagros Belt, just Anatolian Plateau was studied detail...
The Khoy Ophiolitic Complex (KOC) as a part of Tethyan, Izmir-Ankara- Erzincan and Bitlis-Zagros sutures of South East (SE) Turkey is broadly exposed around Khoy region (NW Iran). This complex comprises dismembered fragments of mantle lithosphere, obducted oceanic lithosphere and parts of volcanic arc remnants. The Khoy Ophiolitic Complex can be structurally divided into two major eastern and w...
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