Metallogenic focus-area and superlarge mineral deposits in the bordering zones between China,Russia and Mongolia |
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| Authors: | Shaokang Hu Hongquan Yan Mao Ye Weidong Xiang |
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| Affiliation: | (1) Marine Geological Laboratory, Tongji University, 200092 Shanghai, China;(2) State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 200062 Shangha, China |
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| Abstract: | Two deep-sea cores in the northwest Pacific have been analysed for sedimentology, mineralogy and environmental magnetism. The results show that after eliminating the interference from volcanism, several proxies such as quartz content, mass susceptibility and anhysteretic magnetic remanence can be used to indicate the eolian deposit from East Asia, and provide information on paleo-atmospheric circulation. A comparison of eolian record in Cure RC10-175 with its oxygen isotopic curve has revealed that the peaks of eolian accumulation occurred at the climatic “optimum” of the Holocene and the last interglaciation, showing the fairly complex nonlinear relationship between continental/pelagic eolian records and the global glacial cycles as well as within the climatic and environmental system. Project supported by the National Natural Science Foundation of China (Grant No. 9291104) |
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| Keywords: | elagic eolian record glacial cycles nonlinear relation East Asia northwest Pacific |
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