Stalagmite Records of Climate Change and Cold-Dry Events during the Middle Holocene in Xundian , Yunnan
详细信息
- 责任者：Zhang Huiling (Key Lab. of Marginal Sea Geology ; South China Sea Institute of Oceanology ; Chinese Academy of Sciences ; Guangzhou 510301 ; China) ; Pu Xiaoqiang
- 刊名：Acta Geoscientica Sinica
- 出版年：2011
- 卷期：32(1)
- 关键词：全新世 ; Holocene ; 石笋 ; stalagmites ; 云南 ; Yunnan Province
- 页码：p.95-100
- 图表：3 illus., 1 table, 27 refs.
- 分类号：1400
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
摘要
Based on age-dating of TIMS-U series and analyzing carbon and oxygen isotopes and deposition velocity on XR1 stalagmite from Xianren cave in Xundian, Yunnan Province, the authors revealed the monsoon climate change pattern during the middle Holocene in Xundian. The authors also detected four clod and dry climate events during the Middle Holocene in Xundian, which perfectly responded to the global change. The first climate event that lasted from 6.0 ka B.P. to 5.1 ka B.P. corresponded to the cold period during the Middle Yangshao age in archaeology, and is also called the second little ice age by Denton. The second climate event whose age span was from 4.7 ka B.P. to 4.5 ka B.P. was a short cooling event during the climate recovering period. The third cooling event that lasted from 3.1 ka B.P. to 2.5 ka B.P. was called Xizhou Cold period in Chinese history, which was equivalent to the third new ice age in Northern Hemisphere. The cooling event during 2.5 ka B.P. to 2.1 ka B.P. corresponded to the second cold period during the past 5 000 years’ climate change in China.