Chinese stalagmite δ¹⁸O records reveal the diverse moisture trajectories during the middle to late last glacial period

Yang, Huihui1,2; Chou, Yu-Min2; Jiang, Xiuyang3; Zheng, Wei2; He, Yaoqi4; Banerjee, Yogaraj5,6; Shen, Chuan-Chou5,6; Yu, Tsai-Luen7; Zhong, Yi2; Humbert, Fabien2,8; Liu, Qingsong2

2024-02-01

10.1017/S0016756824000013

GEOLOGICAL MAGAZINE   影响因子和分区

0016-7568

1469-5081

Based on 30 high-resolution U-Th dating controls, we reconstruct stalagmite delta O-18 records from 45 to 15 thousand years ago (ka B.P., before AD 1950) from the Shizhu Cave, which is located in southwestern China under the influence of both the Indian Summer Monsoon (ISM) and the East Asian Summer Monsoon (EASM). By integrating with the other stalagmite delta O-18 records in Asia during the middle to late last glacial, our results reveal two main moisture trajectories: one from the Indian Ocean, through the Shizhu Cave towards central China, and the other from the Pacific Ocean to central and northern China. The systematic decrease of the average values of stalagmite delta O-18 records from oceans to inland China reveals a spatial pattern of water vapour fractionation and moisture trajectory during the middle to late last glacial. In contrast, the variation amplitude, which is defined as the departures apart from the background delta O-18 records during Heinrich stadials 1 to 4 (HS1-HS4), show an increasing trend from the coastal oceans to mid-latitude inland China, presenting a 'coastal-inland' pattern, which can be interpreted by the enhanced East Asian Winter Monsoon (EAWM) and the weakened EASM. More specifically, the enriched stalagmite delta O-18 records in the EASM region during HS1 to HS4 are caused by the decreased summer rainfall amount or/and the increased proportion of summer moisture resources from the Pacific Ocean. These new observations deepen our understanding of the complicated stalagmite delta O-18 records in the EASM region.

stalagmite delta O-18 Heinrich stadials moisture trajectory East Asian Summer Monsoon Indian Summer Monsoon

SCI ; EI

英语

通讯

National Natural Science Foundation of China["42074071","42071106","41874078","92158208","42274094"] ; Shenzhen Science and Technology Program[KQTD20170810111725321] ; Science and Technology Innovation Committee of Shenzhen Municipality[ZDSYS201802081843490] ; Technology and Innovation Commission of Shenzhen Municipality[20200925154739001] ; Southern University of Science and Technology[Y01316111] ; Key Special Project for Introduced Talents Team of Southern Marine Science, the International Cooperation Project of Fujian[2022I0013] ; Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0210] ; National Science and Technology Council[111-2116-M-002-022-MY3] ; National Taiwan University[112L894202] ; Higher Education Sprout Project of the Ministry of Education["110L901001","110L8907","SSKP202102"]

Geology

Geosciences, Multidisciplinary

WOS:001186750900001

CAMBRIDGE UNIV PRESS

GEOSCIENCES

Web of Science

1.Harbin Inst Technol, Sch Environm, Harbin 150006, Peoples R China
2.Southern Univ Sci & Technol, Ctr Marine Magnetism CM2, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China
3.Fujian Normal Univ, Coll Geog Sci, Key Lab Humid Subtrop Ecogeog Proc, Fuzhou 350117, Peoples R China
4.Guizhou Minzu Univ, Coll Tourism & Air Serv, Guiyang 550025, Peoples R China
5.Natl Taiwan Univ, Dept Geosci, High Precis Mass Spectrometry & Environm Change La, Taipei 10617, Taiwan
6.Natl Acad Marine Res, Marine Ind & Engn Res Ctr, Taipei 10617, Taiwan
7.Natl Taiwan Univ, Res Ctr Future Earth, Taipei 10617, Taiwan
8.Univ Rennes, CNRS, Geosci Rennes, UMR 6118, Rennes, France

Yang, Huihui,Chou, Yu-Min,Jiang, Xiuyang,et al. Chinese stalagmite δ¹⁸O records reveal the diverse moisture trajectories during the middle to late last glacial period[J]. GEOLOGICAL MAGAZINE,2024.

Yang, Huihui.,Chou, Yu-Min.,Jiang, Xiuyang.,Zheng, Wei.,He, Yaoqi.,...&Liu, Qingsong.(2024).Chinese stalagmite δ¹⁸O records reveal the diverse moisture trajectories during the middle to late last glacial period.GEOLOGICAL MAGAZINE.

Yang, Huihui,et al."Chinese stalagmite δ¹⁸O records reveal the diverse moisture trajectories during the middle to late last glacial period".GEOLOGICAL MAGAZINE (2024).