نتایج جستجو برای: especially during quaternary period therefore
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Nitrosamine formation has been associated with wastewater-impacted waters, but specific precursors within wastewater effluents have not been identified. Experiments indicated that nitrosamines form in low yields from quaternary amines, and that the nitrosamines form from the quaternary amines themselves, not just lower order amine impurities. Polymeric and benzylated quaternary amines were more...
Abstract: Alluvial fan are one of the most dynamic Quaternary landforms in arid areas.An alluvial fan in the southeast of the city Yazd was identified based on satellite images; in this research, the primary objective of this study is to investigate the surface and subsurface sedimentology of alluvial fan flasks. Twenty soil samples were taken for sedimentological studies. The result indicate ...
As a preliminary phase in the conservation and sustainable management of karst system Fuentetoba, Soria, Spain, an interdisciplinary study was carried out to determine its hydrogeological evolution. The history this aquifer began during late Miocene, where discharges were driven by paleo-emergences moor, associated conduits developed under phreatic (or vadose) conditions—for example, upper syng...
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