AMS radiocarbon dating of lacustrine sediment from an impact crater in northeastern China

被引:5
|
作者
Liu, K. X. [1 ,2 ]
Chen, M. [4 ]
Ding, X. F. [1 ,2 ]
Fu, D. P. [1 ,2 ]
Ding, P. [3 ]
Shen, C. D. [3 ]
Xiao, W. S. [4 ]
机构
[1] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[2] Peking Univ, Inst Heavy Ion Phys, Sch Phys, Beijing 100871, Peoples R China
[3] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China
[4] Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China
关键词
Impact crater; AMS; Radiocarbon; Lacustrine sediment; METEORITE CRATERS; XIUYAN CRATER; AGE; ESTONIA;
D O I
10.1016/j.nimb.2012.08.043
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
In order to investigate the origin and age of a bowl-shaped crater with 1.8 km diameter in northeastern China, a core drilling about 110 m in total was carried out in 2009 at the center of the crater. A 106-m-thick unit of lacustrine sediment is revealed under a surface layer of about 1 m of yellow soil. The impact origin has been confirmed based on geological analysis. In this paper, we report the AMS C-14 dating results of lacustrine sediment. The data suggest that the meteorite impact in Xiuyan happened more than 50,000 years ago and a two-section linear relationship of C-14 ages with the depth shows a stable sediment environment through the two time stages. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:593 / 596
页数:4
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