نتایج جستجو برای: paleosol

تعداد نتایج: 272  

Journal: :Geography, Environment, Sustainability 2023

The history of the early Middle Pleistocene small mammal faunas Eastern Europe is very complicated. which spanned from Brunhes-Matuyama transition (772.9 ka BP, within MIS 19) till beginning Likhvin Interglacial (424 11) includes a number interglacials and glaciations. Rodent species Tiraspolian faunal assemblage were found in Chaudian fluvial deposits Cape Pekla section (northern coast Taman P...

Journal: :Frontiers in Earth Science 2022

The loess deposits widely distributed in the eastern Tibetan Plateau (ETP) are important archives for reconstructing paleoenvironmental changes and dust transportation history of Plateau. A lack sufficient investigations on source ETP has limited our understanding implications. Quartz luminescence sensitivity holds great potential tracing eolian sources. Numerous quartz have provided new insigh...

Journal: :Quaternary 2021

Late Pleistocene outburst megafloods, mostly from glacial Lake Missoula, hydraulically ponded behind downstream constrictions in the Columbia River southeastern Washington State, USA. Optically stimulated luminescence (OSL) ages for flood deposits Coyote Canyon Mammoth Site, located a high (315–320 m asl) distal portion of transient lake, indicate that at least seven floods enough to inundate a...

Journal: :Geology 2022

Abstract The end-Permian mass extinction, the largest biological crisis in Earth history, is currently understood context of Siberian Traps volcanism introducing large quantities greenhouse gases to atmosphere, culminating Early Triassic hothouse. In our study, late Permian and atmospheric CO2 history was reconstructed by applying paleosol pCO2 barometer. Atmospheric shows an approximate 4× inc...

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