Traceurs sedimentaires des variations du niveau marin et de la mousson sud-est asiatique depuis 450 ka en mer de Chine du Sud  [Sedimentary proxies of sea-level and Southeast Asia monsoon variations in the South China Sea over the last 450 kyr]

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doi: 10.1016/j.crte.2008.03.002
Alternate Title(s): Sedimentary proxies of sea-level and Southeast Asia monsoon variations in the South China Sea over the last 450 kyr
Author(s): Boulay, Sébastien; Colin, Christophe; Trentesaux, Alain
Author Affiliation(s): Primary:
Université de Paris-Sud, Laboratoire des Interactions et Dynamique des Environnements de Surface, Orsay, France
Université de Lille I, France
Volume Title: Comptes Rendus - Académie des Sciences. Géoscience
Source: Comptes Rendus - Académie des Sciences. Géoscience, 340(6), p.367-378. Publisher: Elsevier, Paris, France. ISSN: 1631-0713
Note: In French with English summary. Based on Publisher-supplied data; illus., incl. sketch map
Summary: In order to reconstruct the past variations of the Southeast Asian monsoon intensity and estimate the sedimentary system reactivity to climatic changes in Southeast Asia over the last 450 kyr, mineralogical and sedimentological analyses have been performed on the terrigenous fraction of the South China Sea sediment. End-member modelling coupled with grain size data discriminates three end-members that determine the nature and intensity of the main sediment transport vectors. Low sea-level stands are characterized by sediment reworking that allows transportation of a coarse end-member (20-40 µm) to the deep-basin. By contrast, the other end-members (4-6 µm; 9-13 µm) are controlled by the shoreline position (sea level) and/or by changes of the rivers capacity transport (monsoon). Finally, aeolian input to the northern margin of the South China Sea can be considered negligible compared to the massive fluvial input and the reworking of the sediments. Abstract Copyright (2008) Elsevier, B.V.
Year of Publication: 2008
Research Program: ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Asia; Cenozoic; Climate change; Grain size; Leg 184; Marine sediments; Monsoons; North Pacific; Northwest Pacific; ODP Site 1144; ODP Site 1145; ODP Site 1146; Ocean Drilling Program; Pacific Ocean; Paleoclimatology; Provenance; Quaternary; Reworking; Sea-level changes; Sediments; South China Sea; Southeast Asia; Upper Quaternary; West Pacific
Coordinates: N200311 N200311 E1172508 E1172508
N193502 N193502 E1173752 E1173752
N192724 N192724 E1161622 E1161622
Record ID: 2011016622
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands