نتایج جستجو برای: tectonic setting

تعداد نتایج: 260849  

ژورنال: بلورشناسی و کانی شناسی ایران 2016
ابراهیمی, خسرو, کریم‌پور, محمدحسن, زیرجانی‌زاده, صدیقه ,

The study area is located in Khorasan Razavi Province, NW Gonabad and based on tectonic setting, it is situated in the north of Lut Block zone. Subvolcanic bodies intruded the andesitic lava flows and the pyroclastics rocks. These intrusive bodies consist of small stocks and dykes with composition from quartz diorite, monzodiorite to granite. Widespread alteration identified in southern region ...

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ژورنال: بلورشناسی و کانی شناسی ایران 2012
اسماعیلی, داریوش , رسولی, جمال , محجل کفشدوز, محمد,

Broujerd granitoid complex is one of the large intrusive complexes in structural zone of Sanandaj-Sirjan and petrologicaly they are composed of granodiorite and quartzdiorite and which are accompanied by monzogranite stocks. Study of Broujerd granitoid complex replacement mechanism (west of Iran) has been done with the use of anisotropic magnetic susceptibility technique (AMS) on the basis of r...

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ژورنال: بلورشناسی و کانی شناسی ایران 2020
Ghadami, , Khiabani Moghadam, , Poosti, ,

The study area known as ‘Chahar-Dahaneh’ is part of the Iranian southeast ophiolites related to Alpian-Himalayan Mesozoic orogeny belt, and is located in the western margin of the Makran subduction zone. Chahar Dahaneh peridotite section consists of three major lithologies including: 1.dunite lenses 2. harzburgites and 3. Lherzolite. Based on electron microprobe analysis ,we estimated pressure ...

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ژورنال: بلورشناسی و کانی شناسی ایران 2021
Hajialioghli, , Moazzen, , Saeidi, ,

East Salmas gneisses are located in the northernmost parts of the Sanandaj-Sirjan zone and are seen in banded and deformed with the 6 different groups of lithological diversity. Their protolith is of paragneiss type with arkosic sedimentary rock type.Texturally, they are immature. Based on this study, chemical maturation trend of protolith of the present investigated gneisses are in the arid to...

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2013
Mikhail A. Ivanov James W. Head

Completion of a global geological map of Venus has provided documentation of the relative age relationships, spatial distribution, and topographic configuration of the major geologic units and permitted us to address several important problems concerning the volcanic history of Venus. We use these data to: 1) assess the stratigraphic position of volcanic units and landforms, 2) determine their ...

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2007
Henk Kooi Christopher Beaumont

Linear systems analysis is used to investigate the response of a surface processes model (SPM) to tectonic forcing. The SPM calculates subcontinemal scale denudational landscape evolution on geological timescales (1 to hundreds of million years) as the result of simultaneous hillslope transport, modeled by diffusion, and fluvial transport, modeled by advection and reaction. The tectonically for...

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2003
T. R. Watters M. S. Robinson

Introduction: An understanding of the spatial and azimuthal distribution of lobate scarps on Mercury is important in constraining thermal history models and models for the origin of tectonic stresses [see 1]. Existing models involve either global (radial) contraction due to secular cooling of the interior, tidal despinning, or a combination of the two [1, 2, 3, 4, 5]. A comprehensive database o...

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1998
Ronald Greeley Robert Sullivan James Klemaszewski Kim Homan Robert T. Pappalardo Joseph Veverka Beth E. Clark Kenneth P. Klaasen Michael Belton Erik Asphaug Michael H. Carr Gerhard Neukum Tilmann Denk Clark R. Chapman Carl B. Pilcher

recently than others; Europa could experience current cryovolcanic and tectonic activity. Global-scale patterns of tectonic Images of Europa from the Galileo spacecraft show a surface features suggest deformation resulting from non-synchronous with a complex history involving tectonic deformation, impact rotation of Europa around Jupiter. Some regions of the lithocratering, and possible emplace...

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Journal: :Geophysical Journal International 2016

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Journal: :Journal of Natural Gas Geoscience 2020

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