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Reappraisal of Chinese Loess Plateau Stratigraphic Sequences Over the Last 30,000 Years: Precursors of an Important Holocene Monsoon Climatic Event

Published online by Cambridge University Press:  18 July 2016

Weijian Zhou ,
Zhisheng An ,
A. J. T. Jull ,
D. J. Donahue  and
M. J. Head
Weijian Zhou
Affiliation:
State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xi'an 710054, China
Zhisheng An
Affiliation:
State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xi'an 710054, China
A. J. T. Jull
Affiliation:
NSF-Arizona Accelerator Facility for Radioisotope Analysis, The University of Arizona, Tucson, Arizona 85721, USA
D. J. Donahue
Affiliation:
NSF-Arizona Accelerator Facility for Radioisotope Analysis, The University of Arizona, Tucson, Arizona 85721, USA
M. J. Head
Affiliation:
Quaternary Dating Research Centre, The Australian National University, Canberra, ACT 0200, Australia
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Abstract

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Through the establishment of radiocarbon chronozones relating common geological events within lacustrine and eolian sediments from five profiles representative of loess yuan (tablelands), river valley and northwest margin features of the Loess Plateau, we propose a series of stratigraphic divisions within the last 30 ka. The focus of this detailed study involves stratigraphic relationships contributing to evidence of Younger Dryas events, with the recognition of cold-dry, cool-wet and cold-dry periods represented within the Heiheze silt, Midiwan peat and Liushuwan eolian sand. The stratigraphic profiles reflect century-scale fluctuations of the East Asian monsoons. The precursor events enable us to place the Pleistocene/Holocene boundary at 10,000 bp.

Type
Part 2: Applications
Information
Radiocarbon , Volume 40 , Issue 2: 16th International Radiocarbon Conference June 16-20, 1997 Part 2: Applications, Conference Editors: Willem G. Mook Johannes van der Plicht , 1997 , pp. 905 - 913
Copyright
Copyright © The American Journal of Science 

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