Advancing (U-Th)/He Zircon Dating: Novel Approaches in Sample Preparation and Uncertainty Reduction
文献类型：期刊论文
| 作者 | Hao, Yuqi1; Wang, Ying1; Zhang, Zhuqi1; Yu, Jingxing1; Wang, Yizhou1; Pang, Jianzhang1; Zhang, Wanfeng2; Zheng, Dewen1 |
| 刊名 | LITHOSPHERE
 |
| 出版日期 | 2023 |
| 卷号 | 2023页码:12 |
| ISSN号 | 1941-8264 |
| DOI | 10.2113/2023/lithosphere_2023_258 |
| 英文摘要 | The laser microprobe (U-Th)/He dating method is a new and efficient technique that utilizes an interoperable and integrated suite of instruments, including the excimer laser system, quadrupole helium mass spectrometer, and quadrupole inductively coupled plasma mass spectrometer. To demonstrate the applicability of this new method, we applied both the conventional and laser microprobe techniques to the Sri Lanka zircon (LGC-1). We obtained twenty-two (U-Th)/He ages on nine shards using the laser microprobe method, showing an average (U-Th)/He age of 471.1 +/- 16.6 Ma (1s). This result is generally consistent with the mean conventional age (484.1 +/- 9.6 Ma) for twenty-two zircon fragments. Both are nearly equal to the age value (similar to 476 Ma) predicted by the He diffusion model and the thermal history model of Sri Lanka highland. The variations in the laser microprobe-derived ages are most likely caused by the uncertainties in volume measurements, which is also common in other studies. We used the Mahalanobis distance technique to reduce the volume measurement bias by identifying and eliminating abnormal data. |
| WOS研究方向 | Geochemistry & Geophysics ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001163981300002 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/77376]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Hao, Yuqi; Zheng, Dewen |
| 作者单位 | 1.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Yuqi,Wang, Ying,Zhang, Zhuqi,et al. Advancing (U-Th)/He Zircon Dating: Novel Approaches in Sample Preparation and Uncertainty Reduction[J]. LITHOSPHERE,2023,2023:12. |
| APA | Hao, Yuqi.,Wang, Ying.,Zhang, Zhuqi.,Yu, Jingxing.,Wang, Yizhou.,...&Zheng, Dewen.(2023).Advancing (U-Th)/He Zircon Dating: Novel Approaches in Sample Preparation and Uncertainty Reduction.LITHOSPHERE,2023,12. |
| MLA | Hao, Yuqi,et al."Advancing (U-Th)/He Zircon Dating: Novel Approaches in Sample Preparation and Uncertainty Reduction".LITHOSPHERE 2023(2023):12. |
入库方式： OAI收割
来源：广州地球化学研究所
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