Institutional Repository of State Key Laboratory of Lithospheric Evolution
| An investigation of factors affecting the reproducibility of (U-Th)/He ages of high- and low-U minerals | |
| Wang, Yinzhi1,2; Wang, Fei1,2,3; Wu, Lin1,2; Shi, Wenbei1,2; Yang, Liekun1,2 | |
| 2022 | |
| Source Publication | GEOCHEMICAL JOURNAL
 |
| ISSN | 0016-7002 |
| Volume | 56Issue:4Pages:96-111 |
| Abstract | (U-Th)/He thermochronology is an important tool for resolving the temporal evolution of thermally sensitive geological events, but significant intra-sample variation in single-grain (U-Th)/He ages is commonly observed. Zircon and apatite (U-Th)/He ages from the Jiao-Liao region, eastern China, reveal the factors that affect high- and low-U mineral He ages. Inclusions and surrounding U-Th-rich minerals have little effect on high-U mineral He ages, but do cause scatter in low-U mineral He ages. Improving sample quality is a key way to effectively improve this problem. Time and U content are the decisive factors that affect the function of Sm-147. Radionuclide Sm-147 causes variations in low-U mineral He ages, particularly for grains with U <5 ppm and ages >100 Ma. The differences in closure temperature caused by grain size can be minimized by ensuring the difference between the maximum and minimum radius is <30 mu m. Representative CL images indicated zircon (U-Th)/He ages are more susceptible to the interference of the internal heterogeneity than apatites. The error due to the alpha particle ejection correction can be neglected when using the laser ablation technique by analysing sites away from grain rims. The effects of radiation damage vary from high- to low-U minerals. Zircon ages show an inverted U-shaped pattern with increasing radiation damage. Radiation damage has a weak positive correlation with apatite He ages, probably due to its low U content. Besides, thermal histories experienced by our samples fail to significantly influence the effect of radiation damage on ages. |
| Keyword | age reproducibility differential affecting high-to low-U minerals influence factors (U-Th)/He dating |
| DOI | 10.2343/geochemj.GJ22008 |
| Funding Organization | Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China |
| WOS Keyword | APATITE (U-TH)/HE ; HELIUM DIFFUSION ; RADIATION-DAMAGE ; MORPHOTECTONIC EVOLUTION ; HE DIFFUSION ; THERMOCHRONOMETRY ; ZIRCON ; CONSTRAINTS ; MOUNTAINS ; HISTORY |
| Language | 英语 |
| Funding Project | Natural Science Foundations of China[41930106] ; Natural Science Foundations of China[41673015] ; Ministry of Science and Technology of the People's Republic of China[2016YFC0600109] |
| Funding Organization | Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China |
| WOS Research Area | Geochemistry & Geophysics |
| WOS Subject | Geochemistry & Geophysics |
| WOS ID | WOS:000852210900001 |
| Publisher | GEOCHEMICAL SOC JAPAN |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iggcas.ac.cn/handle/132A11/107740 |
| Collection | 岩石圈演化国家重点实验室 |
| Corresponding Author | Wang, Yinzhi |
| Affiliation | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100029, Peoples R China |
| First Author Affilication | State Key Laboratory of Lithospheric Evolution |
| Corresponding Author Affilication | State Key Laboratory of Lithospheric Evolution |
| Recommended Citation GB/T 7714 | Wang, Yinzhi,Wang, Fei,Wu, Lin,et al. An investigation of factors affecting the reproducibility of (U-Th)/He ages of high- and low-U minerals[J]. GEOCHEMICAL JOURNAL,2022,56(4):96-111. |
| APA | Wang, Yinzhi,Wang, Fei,Wu, Lin,Shi, Wenbei,&Yang, Liekun.(2022).An investigation of factors affecting the reproducibility of (U-Th)/He ages of high- and low-U minerals.GEOCHEMICAL JOURNAL,56(4),96-111. |
| MLA | Wang, Yinzhi,et al."An investigation of factors affecting the reproducibility of (U-Th)/He ages of high- and low-U minerals".GEOCHEMICAL JOURNAL 56.4(2022):96-111. |
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