Current models of the peopling of the higher-elevation zones of the Tibetan Plateau postulate that permanent occupation could only have been facilitated by an agricultural lifeway at ~3.6 thousand calibrated carbon-14 years before present. Here we report a reanalysis of the chronology of the Chusang site, located on the central Tibetan Plateau at an elevation of ~4270 meters above sea level. Th...

[1] Lg, a regional seismic wave comprised of multiple shear wave reverberations trapped in the crustal waveguide, is important for magnitude estimation and source discrimination for monitoring nuclear testing treaties. In stable continental regions, Lg propagates with a group velocity of about 3.5 km/s and can often be observed at distances up to 4000 km. To better understand the absence of hig...

Abstract. The Zagros orogenic system resulted due to collision of the Arabian plate with Eurasian plate. region is characterized by ocean–continent subduction and continent–continent collision, convergence velocity shows variations from east west. Therefore, this complex tectonic stress a wide range diffuse or localized deformation between both plates. in situ GPS data are very limited sparsely...

PURPOSE Magnetic resonance imaging (MRI) was used to map the refractive index distribution in human eye lenses in vivo and to investigate changes with age and accommodation. METHODS Whole-eye MR images were obtained for sagittal and transverse axial planes in one eye each of 15 young (19-29 years) and 15 older (60-70 years) subjects when viewing a far ( approximately 6 m) target and at indivi...

the interactions between southeastern sites of iranian plateau and western sites in susa and mesopotamia in the third millennium b.c is one of the most controversial aspects of the near eastern archaeology. it seems that with some structural changes in these sites from the middle of 4th millennium b.c that led to long distance trade between mesopotamia and indus valley, these sites were related...

Two vessels from different sites of the Iranian Plateau, dating to the late 4th or early 3rd millennium BCE are presented aspalaeotechnological case studies. In the fractures of the vessels’ walls, interfaces left by added clay parts (enhanced inthe two illustrations) are quite recognizable. It is proposed that in both cases potters, in order to construct the bases, usedto make bowls comparable...

Twelve species of the genus Ophiomorus DUMÉRIL & BIBRON, 1839 have been identified and introduced so far seven this found in Iran which include four endemic three nonendemic species. Although geometric morphometry is a powerful tool to analyze morphological changes, discovery identification these long relied on traditional morphometric analysis. In study, analyses were used determine morphometr...

Calomyscus elburzensis Goodwin, 1938, was previously known from central and northern Iran to southern and southwestern Turkmenistan and northwestern Afghanistan. Its type locality is at altitude of 1200m elevation in the Kurkhud Mts., North Khorasan province in northeastern Iran. This study provides new evidence that its range is more extensive than thought previously and central Iranian Mounta...

In prehistoric studies of Iran, the Abharrood River Basin, located on the east of Zanjan province and in the northwestborder of the Central Plateau, is one of the little-known and dark regions. Studying this region according to itsenvironmental features and geographical location is important for understanding regional relations and interregionalinteractions between three cultural-geographical a...

The Qinghai-Tibetan Plateau has been experiencing a distinct warming trend, and climate warming has a direct and quick impact on the alpine grassland ecosystem. We detected the greenness trend of the grasslands in the plateau using Moderate Resolution Imaging Spectroradiometer data from 2000 to 2009. Weather station data were used to explore the climatic drivers for vegetation greenness variati...