Probe into the origin, development and evolution model of shelf desertizational environment in the last stage of Late Pleistocene |
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| Authors: | Yu Hong-jun Liu Jing-pu Shan Qiu-mei |
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| Institution: | (1) Institute of oceanology, Chinese Academy of Sciences, 266071 Qingdao;(2) The University of Hong Kong, Hong Kong |
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| Abstract: | Based on study of China's shelf glerenvironmnt, thes paper summarises the defini-tion of shelf desertization that occurred in the last stage of be Pleistocene, and discusses the backgroundof its formation and evolution process. Study of shallow layer profiler records and core data revealed thatcold-dry aeolian erosion was the major exogenic force on the exposed shelf. Under the prevailing paleo-winter monsoon, part of the exposed drine straum disintegzated into sand and then desertizaion oc-curred. The fine sediments were blown away and deposited on the leeward to form derivative loess de-posits. |
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| Keywords: | shelf desertization Late Pleistocene dune loess |
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