Separation of Uranium and Thorium for Th-230-U Dating of Submarine Hydrothermal Sulfides

doi:10.3791/59098

CORC > 地质与地球物理研究所 > 中国科学院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

	Separation of Uranium and Thorium for Th-230-U Dating of Submarine Hydrothermal Sulfides
	Wang, Lisheng 1,2,3; Wang, Xuefeng 1,2; Ye, Jun 4; Ma, Zhibang 1,2; Yang, Weifang 5; Xiao, Jule 1,2
刊名	JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
	2019-05-01
期号	147 页码:6
关键词	Chemistry Issue 147 Extraction chromatography uranium and thorium nuclide Th-230-U dating submarine hydrothermal sulfides dating
ISSN号	1940-087X
DOI	10.3791/59098
英文摘要	The age of a submarine hydrothermal sulfide is a significant index for estimating the size of hydrothermal ore deposits. Uranium and thorium isotopes in the samples can be separated for Th-230-U dating. This article presents a method to purify and separate U and Th isotopes in submarine hydrothermal sulfide samples. Following this technique, the separated U and Th fractions can meet measuring requirements by multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS). The age of the hydrothermal sulfide sample can be calculated by measuring the present-day activity ratios of Th-230/U-238 and U-234/U-238. A super clean room is necessary for this experiment. Cleaned regents and supplies are used to reduce the contamination during the sample processes. Balance, hotplate, and centrifuge are also used. The sulfide sample is powdered for analysis and less than 0.2 g sample is used. Briefly, the sample is weighed, dissolved, added to Th-229-U-233-U-236 double spike solution, Fe co-precipitated, and separated on an anion-exchange resin extraction column. Approximately 50 ng U is consumed for Th-230-U dating of sulfides sample by MC-ICPMS.
资助项目	Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences[11890940] ; China Ocean Mineral Resources R&D Association Project[DY135-S2-2-07]
WOS关键词	CHRONOLOGY ; DISEQUILIBRIUM ; DEPOSITS ; RIDGE ; TAG
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	JOURNAL OF VISUALIZED EXPERIMENTS
WOS记录号	WOS:000469977600025
资助机构	Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Foundation of Institute of Geology and Geophysics, Chinese Academy of Sciences ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/92262]
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	Wang, Lisheng
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.State Ocean Adm, Inst Oceanog 1, Beijing, Peoples R China 5.State Ocean Adm, Key Lab Submarine Geosci, Inst Oceanog 2, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lisheng,Wang, Xuefeng,Ye, Jun,et al. Separation of Uranium and Thorium for Th-230-U Dating of Submarine Hydrothermal Sulfides[J]. JOVE-JOURNAL OF VISUALIZED EXPERIMENTS,2019(147):6.
APA	Wang, Lisheng,Wang, Xuefeng,Ye, Jun,Ma, Zhibang,Yang, Weifang,&Xiao, Jule.(2019).Separation of Uranium and Thorium for Th-230-U Dating of Submarine Hydrothermal Sulfides.JOVE-JOURNAL OF VISUALIZED EXPERIMENTS(147),6.
MLA	Wang, Lisheng,et al."Separation of Uranium and Thorium for Th-230-U Dating of Submarine Hydrothermal Sulfides".JOVE-JOURNAL OF VISUALIZED EXPERIMENTS .147(2019):6.