نتایج جستجو برای: koppeh dagh
تعداد نتایج: 153 فیلتر نتایج به سال:
Abstract Rodent biogeographic studies are disproportionately scarce in Iran, however, they an ideal system to understand drivers of biodiversity distributions the country. The aims present research determine (i) pattern rodent richness across country, (ii) quantify their elevational distribution patterns, and (iii) explore underlying mechanisms. To reach these goals, updated species list was co...
Gully erosion is the most advanced water erosion in watersheds that produce large volumes of sediment can cause serious damage. In order to manage and cope with this type of erosion, to identify areas of high risk of gully erosion in the watershed is very important. For this purpose gully erosion hazard zonation maps by combining information layers of different factors affecting the formation o...
In this research, petrographic and geochemical (major and trace elements) characteristics of siliciclastic rocks of the Mozduran Formation in the eastern Kopet-Dagh Basin have been carried out in order to reveal their provenance such as source area paleoweathering, parent rock composition and tectonic setting. Mozduran Formation is mainly composed of limestone and dolomite, with minor amounts o...
calcareous nannofossils in boundary of tirgan and sarcheshmeh formations at qalezo section have been studied. this section is situated in the west of kopet-dagh basin. in this study 35 nannoplankton species of 17 genera were identified. according to the first occurrence of index species and fossil assemblages two calcareous nannofossil biozones (cc7-cc8) of sissingh (1997) have been recognized....
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