Timing and structure of early-Holocene climate anomalies inferred from north Chinese stalagmite records

Wuhui Duan, Zhibang Ma, Ming Tan, Hai Cheng, R. Lawrence Edwards, Xinyu Wen, Xuefeng Wang, Lisheng Wang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

In this paper, a new decadal resolution stalagmite δ18O record covering 10.4–6.5 ka BP from Kulishu cave in Beijing, north China is presented in combination with the published stalagmite δ18O record covering 10.4–14.0 ka BP in the same cave. Five significant monsoon collapses were identified around 11.5, 11.0, 10.0, 9.4, and 8.2 ka BP as well as three smaller ones around 10.3, 9.0, and 8.6 ka BP. The weak monsoon episodes around 8.6 and 8.2 ka BP form the two-step structure of the 8.2 ka event. All monsoon collapses, coeval with the cooling in northern high-latitude records, are correlated with Lakes Agassiz-Ojibway outbursts. Thus, our data support the idea of freshwater forcing of abrupt climate anomalies during the early Holocene. Nevertheless, the decreased irradiance together with freshwater outburst may account for the 9.2/9.3 ka event, which is expressed more significantly in low-latitude records.

Original languageEnglish (US)
Pages (from-to)1777-1785
Number of pages9
JournalHolocene
Volume31
Issue number11-12
DOIs
StatePublished - Jul 22 2021

Bibliographical note

Funding Information:
We are grateful to Professor Andy Baker for his helpful comments. We thank Dr. Xu Wang and Linlin Cui for the help with the stable isotope analysis. The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This research was supported by the National Key Research and Development Program of China (2017YFA0603401), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB26020000), National Natural Science Foundation of China (Grant Nox. 41772184, 41731174, 41472150 and 41888101), and U.S. NSF (1702816). The datasets will be uploaded to https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem

Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This research was supported by the National Key Research and Development Program of China (2017YFA0603401), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB26020000), National Natural Science Foundation of China (Grant Nox. 41772184, 41731174, 41472150 and 41888101), and U.S. NSF (1702816). The datasets will be uploaded to https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem

Publisher Copyright:
© The Author(s) 2021.

Keywords

  • North China
  • cave records
  • climate anomalies
  • early Holocene
  • structure
  • timing

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