the altitude to which the past glaciers had been extended during the last glacial period in dinevar basin, western iran, can be estimated based on glacier-geomorpic evidence such as cirques, u-shaped valleys, and the moraines in lowlands. this study estimates the elevation of snowline during this period for the basin as the objective of the research. topographic and geologic maps, landsat image...

Magnetic susceptibility has been extensively used to determine the magnetic properties of rocks for different applications, such as hydrocarbon or mineral explorations. This magnetic quantity can be directly measured in an accurate but time-consuming operation, or it can be mathematically approximated using a reliable procedure to achieve a desired accuracy. The Poisson theory is one of the mos...

The Seymareh landslide is the largest rock slope failure (44 Gm3) ever recorded on exposed Earth surface. It detached at ∼10 ka from northeastern flank of Kabir-Kuh anticline (Zagros Mountains, Iran) creating a natural dam responsible for formation lake system that persisted ∼3 kyr during early and mid-Holocene before its emptying phase caused by overflow. chronology demise connection to Holoce...

A new morphologically cryptic species of phaneropterid bush-cricket from the genus Isophya is described from the Eastern Carpathian Mountains: Isophya dochiasp. n. Sound analysis and morphological details are discussed in the paper comparing the new species with several Isophya species having similar morphology and acoustic behavior.

The magnitude and duration of ongoing global warming affects tree growth, especially in semi-arid forest landscapes, which are typically dominated by a few adapted species. We investigated the effect climatic control on growth Persian oak (Quercus brantii Lindl.), is dominant species Central Zagros Mountains western Iran. A total 48 stem discs was analyzed from trees at three sites, differing l...

The persistent debate over the timing of initial Arabia–Eurasia collision has eluded consensus for decades, with most estimates ranging widely from ~50 to 10 Ma along both Anatolian and Zagros segments orogen. Here, we independently evaluate location using a quantitative plate tectonic reconstruction that is first include entire Arabian microcontinent regions north in eastern Anatolia, northwes...

Knowledge on habitat suitability of ecologically important species is central for their conservation management. The occurrence records brown bear (Ursus arctos) in Kurdestan Province Iran and environmental data were compiled to predict the ecological niche this using Maxent distribution algorithm. Satellite imagery Landsat 5 8 1990 2017 was also employed investigate human-induced land degradat...

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...