East Asian winter monsoon evolution since the late Pliocene based on a pollen record from Lake Xingkai, northeast Asia

	East Asian winter monsoon evolution since the late Pliocene based on a pollen record from Lake Xingkai, northeast Asia
	Xin, Shouzhen; Shen, Ji; Zhang, Wenfang; Sun, Weiwei; Xiao, Xiayun
刊名	QUATERNARY RESEARCH
	2020
卷号	93 期号:1 页码:40-59
英文摘要	A 328.58 m drill core (XK12) was recovered from lacustrine-alluvial sediments in the Xingkai Basin, northeast China, with the aim of obtaining a high-resolution pollen record of East Asian winter monsoon (EAWM) evolution since 3.6 Ma. An index based on the pollen record of thermophilous trees and terrestrial herbs is used as an indicator of winter temperature conditions controlled by the EAWM, at the glacial-interglacial scale. Primary age control was established based on lithostratigraphy and magnetostratigraphy, and then the pollen index was correlated to the LR04 global benthic delta O-18 record and finally tuned to Earth orbital obliquity to produce a high-resolution astronomical time scale. The pollen record indicates that the EAWM underwent two stepwise enhancements at 2.8 and 1.6 Ma. These events are consistent with paleoclimatic records of mean quartz grain size from the Chinese Loess Plateau, and they are also in accord with the initiation and intensification of Northern Hemisphere glaciation. Our findings suggest that the variability of the EAWM since 3.6 Ma was primarily controlled by changes in global ice volume and climatic cooling.
内容类型	期刊论文
源URL	[http://159.226.73.51/handle/332005/19875]
专题	中国科学院南京地理与湖泊研究所
推荐引用方式 GB/T 7714	Xin, Shouzhen,Shen, Ji,Zhang, Wenfang,et al. East Asian winter monsoon evolution since the late Pliocene based on a pollen record from Lake Xingkai, northeast Asia[J]. QUATERNARY RESEARCH,2020,93(1):40-59.
APA	Xin, Shouzhen,Shen, Ji,Zhang, Wenfang,Sun, Weiwei,&Xiao, Xiayun.(2020).East Asian winter monsoon evolution since the late Pliocene based on a pollen record from Lake Xingkai, northeast Asia.QUATERNARY RESEARCH,93(1),40-59.
MLA	Xin, Shouzhen,et al."East Asian winter monsoon evolution since the late Pliocene based on a pollen record from Lake Xingkai, northeast Asia".QUATERNARY RESEARCH 93.1(2020):40-59.