Heinrich event 4 and Dansgaard/Oeschger events 5-10 recorded by high-resolution speleothem oxygen isotope data from central China

被引：26

作者：

Zhou, Houyun ^{[1
,2
]}

Zhao, Jian-xin ^{[3
]}

Feng, Yuexing ^{[3
]}

Chen, Qiong ^{[1
]}

Mi, Xiaojian ^{[1
]}

Shen, Chuan-Chou ^{[4
]}

He, Haibo ^{[1
]}

Yang, Liang ^{[1
]}

Liu, Shuhua ^{[1
]}

Chen, Lin ^{[1
]}

Huang, Jiayi ^{[1
]}

Zhu, Liyan ^{[1
]}

机构：

[1] S China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China

[2] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China

[3] Univ Queensland, Sch Earth Sci, Radiogen Isotope Facil, Brisbane, Qld 4072, Australia

[4] Natl Taiwan Univ, Dept Geosci, High Precis Mass Spectrometry & Environm Change L, Taipei 106, Taiwan

来源：

QUATERNARY RESEARCH | 2014年 / 82卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

Dansgaard/Oeschger event; Heinrich event; delta O-18; Central China; Asian summer monsoon; ASIAN SUMMER MONSOON; INITIAL TH-230/TH-232; MODERN PRECIPITATION; STALAGMITE EVIDENCE; DELTA-O-18; RECORDS; INDIAN MONSOON; CAVE; VARIABILITY; CLIMATE; PALEOCLIMATE;

D O I：

10.1016/j.yqres.2014.07.006

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

A 50-yr resolution reconstruction of climate and environment variability during the period 43-14 ka was developed using 26 high-precision U/Th dates and 390 oxygen isotope (delta O-18) data of a stalagmite (SJ1) collected from Songjia Cave in central China, which is close to the northwestern boundary of the Asian summer monsoon (ASM). The delta O-18 record in SJ1 displays significant millennial-scale changes that correlate well in timing and duration with Dansgaard/Oeschger (D/O) events 5-10 and Heinrich event 4 (H4) identified in high-latitude regions of the Northern Hemisphere. Four Th-230 dates constrain the H4 event precisely to the period of 39.7 to 38.3 ka. Notable centennial variations of the ASM activity could be observed within the H4 event. The magnitude and duration of D/O event 4.1 recorded in SJ1 are similar to those archived in east China but different from those documented in southwest China, suggesting that the manifestation of this event may be regionally different. The timing, duration and structure of D/O events 5-10 and Heinrich event 4 suggest that temperature changes in both hemispheres have exerted significant influences on the ASM variations in central China. (C) 2014 University of Washington. Published by Elsevier Inc. All rights reserved.

引用

页码：394 / 404

页数：11