FN Archimer Export Format
PT J
TI Responses of the East Asian summer monsoon in the low-latitude South China Sea to high-latitude millennial-scale climatic changes during the last glaciation: Evidence from a high-resolution clay mineralogical record
BT 
AF ZHAO, Shaohua
   LIU, Zhifei
   COLIN, Christophe
   ZHAO, Yulong
   WANG, Xingsing
   JIAN, Zhimin
AS 1:1;2:1;3:2;4:1;5:1;6:1;
FF 1:;2:;3:;4:;5:;6:;
C1 Tongji Univ, State Key Lab Marine Geol, Shanghai, Peoples R China.
   Univ Paris 11, UMR CNRS 8148, Lab Geosci Paris Sud, Orsay, France.
C2 UNIV TONGJI, CHINA
   CNRS, FRANCE
IF 2.888
TC 33
UR https://archimer.ifremer.fr/doc/00445/55649/57304.pdf
   https://archimer.ifremer.fr/doc/00445/55649/57305.pdf
   https://archimer.ifremer.fr/doc/00445/55649/57306.xlsx
LA English
DT Article
CR MD 190 / CIRCEA
BO Marion Dufresne
DE ;clay mineralogy;millennial-scale climatic change;last glaciation;East Asian summer monsoon;South China Sea
AB High‐resolution clay mineral assemblage combined with Nd and Sr isotopic compositions of Core MD12‐3434 located in the northern South China Sea was investigated to reveal terrigenous sediment response to the East Asian monsoon evolution during the last glaciation. Clay mineralogical variations indicate clear millennial‐scale oscillations that are mainly due to rapid changes in the proportion of smectite to illite and chlorite. Smectite is derived predominantly from rapid chemical weathering of volcanic rocks in Luzon under strong summer monsoon, while illite and chlorite are mainly sourced from Taiwan through reinforced physical erosion. Thus, the smectite/(illite + chlorite) ratio is adopted to reconstruct the East Asian summer monsoon evolution during the last glaciation. Rapid increases in the smectite/(illite + chlorite) ratio imply strengthened summer monsoon occurred during Dansgaard‐Oeschger and Bølling‐Allerød interstadials. In contrast, rapid decreases in the ratio indicate relatively weakened summer monsoon happened during Heinrich and Younger Dryas stadials. These millennial‐scale climatic signals documented by clay mineralogical compositions of deep‐sea sediments in the South China Sea can be better preserved in calm deeper‐water sedimentary environments. Our study highlights the prompt responses of the East Asian monsoon system to millennial‐scale climatic changes occurred in high‐latitude Northern Hemisphere through contemporaneous chemical weathering of volcanic rocks and/or sediment supply variations under strong physical erosion in the low‐latitude South China Sea, implying an atmospheric teleconnection from the North Atlantic to the Asian monsoon region. 
PY 2018
PD JUN
SO Paleoceanography And Paleoclimatology
SN 2572-4517
PU Amer Geophysical Union
VL 33
IS 7
UT 000441277800007
BP 745
EP 765
DI 10.1029/2017PA003235
ID 55649
ER

EF