中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院新生代地质与环境重点实验室
Testing the initial Th-230/Th-232 for "Known Age Carbonate" and its significance for Th-230 dating and paleoclimate research

文献类型：期刊论文

作者Li, Ting-Yong1,2; Wang, Xuefeng3; Chen, Chao-Jun2; Tan, Ming3; Wu, Yao2
刊名QUATERNARY INTERNATIONAL
出版日期2022-01-10
卷号607页码:113-119
关键词Known age carbonate Zero-age carbonate Initial Th-230/Th-232 Th-230 dating Paleoclimate reconstruction
ISSN号1040-6182
DOI10.1016/j.quaint.2021.07.020
英文摘要The Th-230 dating (U-238-U-234-Th-230 dating method) has become one of the most important dating methods for Quaternary research. However, the Th-230/Th-232 ratio of 4.4 +/- 2.2x10(-6) is widely used for age correction in Th-230 dating method. Here, we collected active speleothems with exactly known age and zero-year-old calcium carbonate from caves and dated them by Th-230 dating. Our data indicated that the initial Th-230/Th-232 ratio can be one order of magnitude higher than the ratio of 4.4 +/- 2.2 x 10(-6). High initial Th-230/Th-232 ratio may result in false and comparatively old calculated age than the real age of young samples with low U-238 concentration. So, the accurate initial Th-230/Th-232 ratio of active speleothem deposited in the same cave, instead of the general initial Th-230/Th-232 ratio, is essential for the precise age correction of young speleothem samples of low U-238 concentration. Finally, we proposed a procedure to correlate modern observation and speleothem based paleoclimate reconstruction, on the basis of precise Th-230 age which corrected by the true initial Th-230/Th-232 ratio.
WOS关键词HIGH-PRECISION ; FURONG CAVE ; URANIUM ; WATER
资助项目National Natural Science Foundation of China (NSFC)[41772170] ; National Natural Science Foundation of China (NSFC)[42011530078] ; Fundamental Research Funds for the Central Universities, China[XDJK2020D005]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000718035100005
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China ; Fundamental Research Funds for the Central Universities, China
源URL[http://ir.iggcas.ac.cn/handle/132A11/103838]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Li, Ting-Yong; Tan, Ming
作者单位1.Yunnan Normal Univ, Fac Geog, Yunnan Key Lab Plateau Geog Proc & Environm Chang, Kunming 650500, Yunnan, Peoples R China
2.Southwest Univ, Sch Geog Sci, Chongqing Key Lab Karst Environm, Chongqing 400715, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Li, Ting-Yong,Wang, Xuefeng,Chen, Chao-Jun,et al. Testing the initial Th-230/Th-232 for "Known Age Carbonate" and its significance for Th-230 dating and paleoclimate research[J]. QUATERNARY INTERNATIONAL,2022,607:113-119.
APA Li, Ting-Yong,Wang, Xuefeng,Chen, Chao-Jun,Tan, Ming,&Wu, Yao.(2022).Testing the initial Th-230/Th-232 for "Known Age Carbonate" and its significance for Th-230 dating and paleoclimate research.QUATERNARY INTERNATIONAL,607,113-119.
MLA Li, Ting-Yong,et al."Testing the initial Th-230/Th-232 for "Known Age Carbonate" and its significance for Th-230 dating and paleoclimate research".QUATERNARY INTERNATIONAL 607(2022):113-119.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。