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Rapid Extraction Chemistry Using a Single Column for Th-230/U Dating of Quaternary Hydrothermal Sulfides

文献类型：期刊论文

作者Wang, Li-Sheng1,2,3; Wang, Ye-Jian4; Ye, Jun5; Wang, Xue-Feng1,3; Xiao, Ju-Le1,2,6; Ma, Zhi-Bang1
刊名MINERALS
出版日期2021-09-01
卷号11期号:9页码:11
关键词Th-230 U dating quaternary hydrothermal sulfides MC-ICPMS extraction
DOI10.3390/min11090983
英文摘要Th-230/U dating can provide high-precision age constraints on Quaternary hydrothermal sulfides. However, low content of U and Th often involves extraction chemistry for the separation and enrichment of U and Th, but these chemical processes are very complex. We developed a simplified procedure consisting of total sample dissolution and single-column extraction chemistry, which can reduce the time and improve the accuracy of the dating. Concentrated HCl-HF followed by HNO3 was added to ensure complete dissolution. A single column filled with 0.4 mL of AG 1-X8 anion resin was used, then 8 M HNO3, 8 M HCl and 0.1 M HNO3 were used to elute most of the matrix metals, Th and U. This process provided more than 95% recoveries for U and Th, and negligible blanks. Meanwhile, Pb and Bi interferences were tested and showed no effect on the U and Th isotope ratio. The Th-230/U-238 activity of the Geological Survey of Japan geochemical reference material JZn-1 in secular equilibrium was determined and showed a radioactive equilibrium (1.00 +/- 0.01, n = 5, all errors 2 sigma) and an in-house standard QS-1 was consistent to 0.0078 +/- 0.0001 (n = 8, +/- 2 sigma) with an average age of 705 +/- 10 yrs BP (n = 8, +/- 2 sigma). The technique greatly shortens the sample preparation time and allows more concise and effective analysis of U-Th isotopes. It is ideally suited for the high-precision Th-230/U dating of Quaternary submarine hydrothermal sulfides and sulfides from other settings.
WOS关键词TH RADIOACTIVE DISEQUILIBRIUM ; MC-ICP-MS ; CHRONOLOGY ; FIELD ; PRECISION ; DEPOSITS ; GEOCHEMISTRY ; URANIUM ; RIDGE ; AGES
资助项目China Ocean Mineral Resources R&D Association Project[DY135-S2-2-07] ; National Natural Science Foundation of China[41976076] ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences[T201802]
WOS研究方向Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000701519300001
出版者MDPI
资助机构China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the 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 ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the 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 ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the 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 ; China Ocean Mineral Resources R&D Association Project ; China Ocean Mineral Resources R&D Association Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/102693]  
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, Li-Sheng
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Minist Nat Resources, Inst Oceanog 2, Key Lab Submarine Geosci, Hangzhou 310012, Peoples R China
5.Minist Nat Resources, Inst Oceanog 1, Lab Marine Geol & Geophys, Qingdao 266061, Peoples R China
6.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Li-Sheng,Wang, Ye-Jian,Ye, Jun,et al. Rapid Extraction Chemistry Using a Single Column for Th-230/U Dating of Quaternary Hydrothermal Sulfides[J]. MINERALS,2021,11(9):11.
APA Wang, Li-Sheng,Wang, Ye-Jian,Ye, Jun,Wang, Xue-Feng,Xiao, Ju-Le,&Ma, Zhi-Bang.(2021).Rapid Extraction Chemistry Using a Single Column for Th-230/U Dating of Quaternary Hydrothermal Sulfides.MINERALS,11(9),11.
MLA Wang, Li-Sheng,et al."Rapid Extraction Chemistry Using a Single Column for Th-230/U Dating of Quaternary Hydrothermal Sulfides".MINERALS 11.9(2021):11.

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来源：地质与地球物理研究所

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