نتایج جستجو برای: zagros mountains

تعداد نتایج: 16983  

Journal: :Subterranean biology 2022

With only 43 described stygobionts and two isopod species the obligate groundwater fauna of Iran, a vast country with over 10% limestone surface, is inadequately known. Here, we report discovery Asellus ismailsezarii sp. nov. from Zagros mountains, first eyeless depigmented asellid Iran. The new morphologically similar to monticola Birstein, 1932, but it fully depigmented, has slightly curved p...

Aims & Backgrounds: One of the most important incidents of heavy precipitation is that each year there are many damages. Precipitation regimes help to identify the climate of each region. A heavy precipitation regime can help in identifying the climate of each region. Identification of these regimes is one of the most important prerequisites for environmental planning, especially water resource...

ایلخانی خسروشاهی, مینا , حاجی علی اوغلی, رباب ,

The study area is located in the Soredal mountains, southern Mashkan village in the border of Iran with Iraq. The rock compositions are harzburgite to dunite which metamorphosed under various degrees of serpentinization. On the basis of mineral chemistry studies, main compositions of olivine and orthopyroxene are Fo (85.07- 91.55) and En (0.89- 0.92) respectively. Composition of clinopyroxene i...

The chamomile species of Anthemis triumfettii (L.) All is one of important medicinal plant belong to Compositae family and it grows as wild species in Zagros and Alborz Mountains, Iran. The aim of this study was to evaluation of morphological and phenological traits and their relationships with essential oil. Seeds of seven accessions were sown in jiffy pots and transferred to field using rando...

Zagros Mountains in west of Iran are covered by unique forests and rangelands. Increasing population, low level of development and high dependence of local people on natural resources for primary livelihood needs resulted in degradation of Zagros forests and rangelands. Along with these factors, since the last decade, climate change including severe drought is an important issue in the world, p...

Journal: :Tectonophysics 2021

Tectonic stresses governed by the Arabia – Central Iran collision are transferred throughout Iranian Plateau. The orientation of maximum horizontal stress (σ 1 ) significantly changes (~90°) in Persian block NW Iran. However, exact spatial extent and boundary conditions for these poorly defined. This study investigates late Cenozoic regime a key region including Mahneshan Mianeh Basin (MMCB), G...

2004
Nadine McQuarrie

Balanced cross-sections across the Zagros fold–thrust belt in Iran are used to analyze the geometry of deformation within the sedimentary cover rocks, and to test the hypothesis of basement involved thrusting throughout the fold–thrust belt. Although the Zagros deformation front is a relatively rectilinear feature, the sinuous map-view morphology of the mountain front is a result of a 6 km stru...

Journal: :natural environment change 0
ezatollah ghanavati associate professor, kharazmi university, tehran, iran mojtaba yamani professor, university of tehran, tehran, iran hadi karimi ph.d. candidate in physical geography, kharazmi university, tehran, iran

tectonic processes are major factors controlling landform development in tectonically active areas. in order to evaluate quantitative measurement of tectonic activities in the alamarvdasht basin in the south of iran, six different morphological indices including stream-gradient index (sl), drainage basin asymmetry (af), hypsometric integral (hi), valley floor width-valley height ratio (vf), dra...

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