Palaeoenvironmental implication of the Plio-Pleistocene loess deposits in southern Tarim Basin |
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Authors: | Hongbo Zheng Huizhong Chen Junji Cao |
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Affiliation: | (1) Laboratory of Marine Geology, Tongji University, 200092 Shanghai, China;(2) Institute of Earth Environment, Chinese Academy of Sciences, 710054 Xi’an, China;(3) Institute of Environment and Engineering of Cold and Arid Regions, Chinese Academy of Sciences, 710000 Lanzhou, China |
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Abstract: | The sedimentary characteristics, grain-size distribution, geochemical composition and surface characteristics of quartz grains, together with palaeoenvironmental reconnaissance, all point to an aeolian origin for the intercalated siltstone beds in the Plio-Pleistocene Artux and Xiyu Formations along the southern margins of the Tarim Basin, indicating that loess deposition in the region started, at least, in the Early Pliocene. Loess deposition in the southern Tarim Basin was a response to the global deterioration, which might be attributed to the uplift of the Tibetan Plateau. |
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Keywords: | eolian loess Plio-Pleistocene Tarim Basin |
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