Sediment provenance and evolution of the East Asian winter monsoon since 700 ka recorded by major elements in the West Philippine Sea

To synthetically realize the character of major-element compositions as well as its significance for provenance and paleoenvironment recorded in core sediments of the West Philippine Sea over the last 700 ka, grain size and major elements of 221 bulk sediments, together with major-element compositio...

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Bibliographic Details
Published in:Chinese Science Bulletin
Main Authors: Xu ZhaoKai, Li TieGang, Yu XinKe, Li AnChun, Tang Zheng, Choi, JinYong, Nan QingYun, Li, TG
Format: Article in Journal/Newspaper
Language:English
Published: 2013
Subjects:
Major Elements
Provenance
Eolian Dust
East Asian Winter Monsoon
West Philippine Sea
Science & Technology - Other Topics
Multidisciplinary Sciences
Science & Technology
PACIFIC
LUZON
CHINA
GEOCHEMISTRY
VARIABILITY
PLATEAU
UPLIFT
LAVAS
DUST
CORE
Antarctic
Pacific
The Antarctic
Antarc*
ice core
Online Access:http://ir.qdio.ac.cn/handle/337002/16316
https://doi.org/10.1007/s11434-012-5538-8
Description
Summary:To synthetically realize the character of major-element compositions as well as its significance for provenance and paleoenvironment recorded in core sediments of the West Philippine Sea over the last 700 ka, grain size and major elements of 221 bulk sediments, together with major-element compositions in the detrital phase of 16 typical samples, in core MD06-3047 collected from the Benham Rise were analyzed. Both discrimination plot and R-mode factor analysis indicate that vertical changes of major elements are mainly controlled by the sedimentation of nearby volcanic matter and the eolian dust input, whereas influences from marine biologic deposition and hydrothermal activity are minor. In particular, Al2O3 and K2O are representative of an eolian dust factor. The variation in the eolian dust factor score is characterized by the obviously glacial-interglacial periodicity and can be well compared with the paleotemperature record of the Antarctic ice core and the evolution of the East Asian winter monsoon (EAWM) recorded in the Chinese loess sequence, and then offers a new proxy for the evolution history of eolian dust input into the study area that is controlled by the EAWM intensity and aridity in the continental source regions of atmospheric dust. To synthetically realize the character of major-element compositions as well as its significance for provenance and paleoenvironment recorded in core sediments of the West Philippine Sea over the last 700 ka, grain size and major elements of 221 bulk sediments, together with major-element compositions in the detrital phase of 16 typical samples, in core MD06-3047 collected from the Benham Rise were analyzed. Both discrimination plot and R-mode factor analysis indicate that vertical changes of major elements are mainly controlled by the sedimentation of nearby volcanic matter and the eolian dust input, whereas influences from marine biologic deposition and hydrothermal activity are minor. In particular, Al2O3 and K2O are representative of an eolian dust factor. The ...

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