نتایج جستجو برای: mighan playa
تعداد نتایج: 953 فیلتر نتایج به سال:
Copyright: © 2017 Blanco R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Double Expression of Epidermal Growth Factor Receptor and N-Glycolyl GM3 Ganglioside in Human Malignant Tumors: A Study in Fou...
Saghand playa is located about 150 km northeast of Yazd in central Iran. In order to study brine evolution and effect of brine origin on mineralogical distribution and hydrochemical characteristics of evaporate minerals for exploration, 21 samples were collected from different parts of this playa. The samples were analyzed using the XRD to determine mineralogical characterstics of the brine. N...
We studied mineral and deposition records in a dry lake playa, Sabzevar, northeastern, Iran. For sampling soil and depositional records, 12 samples were taken along Playa surfaces including firm puffy ground, clay-carbonate plain, and salty pan with the dominance of Halite salts. All profiles were excavated by hand auger with a 5 cm diameter head to a depth of ~5 cm. Sediment analysis was carri...
Introduction Identification of the climate changes is important for understanding the paleoenvironmental characteristics. Sedimentary evidence of the closed basins can be one of the most important methods for identifying the climatic periods and changes in the sedimentary environments. Gavkhouni Playa, as the lowland of the ZayandehRud River catchment area is located in an inter-mountainous...
In this study, brine and sediment samples from the Meighan basin located about 15 km northeast of Arak city were considered. Sediments samples were collected from boreholes and surface sediments of playa bed were studied for their mineralogical content by X-ray diffraction (XRD) technique and sedimentology.The results showed that the Playa sediments were consist of chemical (evaporate) and detr...
Excavations in a playa along the 1992 rupture of the Emerson fault reveal evidence of two paleoseismic events, with only one large prehistoric rupture in the past 15 millennia. Accelerator mass spectrometer radiocarbon ages of charcoal from playa sediments and from faultscarp colluvium directly beneath the playa beds indicate that the last large prehistoric slip event occurred about 9000 ka. Tr...
Playas, as the flattest landforms in semiarid and arid regions, are extremely sensitive to climate changes, such changes hydrologic regime of landscape. The these due irrigation, anthropogenic activities, change could be a source disasters. In this study, we explored spatial-temporal Abarkuh Playa Central Iran using time series Sentinel-1 backscatter dataset three scales. Our results showed tha...
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