Cao Junji et al. (2003): Variations in dust flux in the Loess Plateau from 6.5 to 2.2 Ma BP; implications for the evolution of the East Asian winter monsoon and Asian aridity

Leg/Site/Hole:
ODP 145
ODP 145 885
ODP 145 886
Identifier:
2009-027048
georefid

Creator:
Cao Junji
Chinese Academy of Sciences, Institute of Earth Environment, Xi'an, China
author

Zhang Xiaoye
Tongji University, China
author

Aa Zhisheng
author

Zheng Hongbo
author

Identification:
Variations in dust flux in the Loess Plateau from 6.5 to 2.2 Ma BP; implications for the evolution of the East Asian winter monsoon and Asian aridity
2003
Haiyang Dizhi yu Disiji Dizhi = Marine Geology & Quaternary Geology
Science Press, Beijing, China
23
3
97-101
A comparison of dust flux recorded in red clay sediments in the Loess Plateau with that from ODP Sites 885 and 886 in the North Pacific shows that dust flux exhibited the same variation trends on a scale of ten thousand years. Variations in dust flux in continental and marine aeolian sediments indicate the history of Asian inland drying and East Asian winter monsoon circulation since 6.5 Ma BP. Since 6.5 Ma BP, the Asian inland region became dry and dust production increased. The East Asian winter monsoon circulation developed and entrained vast amounts of dust materials which were brought into the Loess Plateau. The source regions became wet and the intensity of winter monsoon circulation relatively weakened during from 5.2 to 3.6 Ma BP, which led to a large decrease in dust flux. From 3.6 to 2.6 Ma BP, uplift of the Tibetan Plateau resulted in increasing aridity in Asian dust source regions once again, as well as enhanced winter monsoon circulation, so dust flux increased rapidly. But the variations in dust fluxes recorded in red clay and deep-sea sediments were somewhat different, implying different methods of dust transport on a regional or global scale.
Chinese
Serial
Coverage:Geographic coordinates:
North:39.4000
West:106.3000East: 111.1500
South:34.0000

Stratigraphy; arid environment; Asia; Cenozoic; China; clastic sediments; climate change; dust; East Asian monsoon; Far East; Leg 145; Loess Plateau; monsoons; Neogene; North Pacific; Ocean Drilling Program; ODP Site 885; ODP Site 886; Pacific Ocean; paleoclimatology; Pliocene; sediments; terrestrial environment; Tertiary; variations;

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