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Climatic variations in the past 140 ka recorded in core RM, east Qinghai-Xizang Plateau 被引量:11

Climatic variations in the past 140 ka recorded in core RM, east Qinghai-Xizang Plateau
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摘要 The sequences of climatic evolution are reconstructed by the analyses of δ13C and δ18O of carbonate from core RM in the Zoige Basin since 140 kaB. P. During the Last Glaciation there existed at least seven warm climatic fluctuations and five cold events correlated with the records of ice core and deep sea, and during the preceding last in-terglacial period there were two cold climatic variations coinciding with the record of ice core GRIP. These results depict climatic instability in east Qinghai-Xizang Plateau over the last interglacial period. In addition, the environmental proxies of the carbonate content and pigments indicate the similar results to the stable isotope record from core RM. The sequences of climatic evolution are reconstructed by the analyses of δ13C and δ18O of carbonate from core RM in the Zoige Basin since 140 kaB. P. During the Last Glaciation there existed at least seven warm climatic fluctuations and five cold events correlated with the records of ice core and deep sea, and during the preceding last in-terglacial period there were two cold climatic variations coinciding with the record of ice core GRIP. These results depict climatic instability in east Qinghai-Xizang Plateau over the last interglacial period. In addition, the environmental proxies of the carbonate content and pigments indicate the similar results to the stable isotope record from core RM.
出处 《Science China Earth Sciences》 SCIE EI CAS 1997年第4期443-448,共6页 中国科学(地球科学英文版)
基金 Project supported by the Chinese Climbing Project (85-029-02-01)
关键词 Zoige Basin oxygen ISOTOPE climatk variation Zoige Basin, oxygen isotope, climatk variation
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