Extensive Resetting of Feldspar Pb Isotopic Composition in Archean-Paleoproterozoic Granitic Rocks from the Kongling Terrane, South China: Implications for Tracing Thermal Evolutionary History
文献类型：期刊论文
| 作者 | Meng, Fanxue1; Lu, Jie1; Zou, Zongqi2,3; Guo, Jingliang2; Meng, Yuanku1 |
| 刊名 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 98期号:2页码:386-398 |
| 关键词 | in situ Pb isotope Pb isotope resetting thermal event Archean-Paleoproterozoic Kongling terrane |
| ISSN号 | 1000-9515 |
| DOI | 10.1111/1755-6724.15130 |
| 英文摘要 | Feldspar Pb isotopes have been widely used to trace magmatic formation and evolution processes. However, it remains unclear whether post-magmatic thermal events can affect feldspar Pb isotopic ratios. Here, the in situ Pb isotopic composition of feldspar hosted in granitic rocks (thirteen Archean and one Paleoproterozoic) from the northern Kongling terrane, Yangtze Craton, South China, is analyzed. The samples reveal a substantial variation in their Pb isotopic composition, spanning the gap between the 1.9 Ga and present-day geochrons, which indicates extensive resetting by later tectonothermal events. This resetting was interpreted to have likely resulted from Paleoproterozoic and Neoproterozoic tectonothermal events related to the assembly and breakup of the Columbia and Rodinia supercontinents. These results suggest that Pb isotopes should be used cautiously when tracing magma sources and petrogenesis in magmatic rocks that have experienced post-magmatic reworking. However, the in situ Pb isotopic composition of feldspar in ancient granitoids may also potentially be used to reveal later tectonothermal events. The extensive resetting of the Pb isotopic composition in feldspar by regional thermal events may also provide new insights into our understanding of the Pb isotope paradox. image |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001224655300010 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/76963]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Meng, Fanxue |
| 作者单位 | 1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Shandong, Peoples R China 2.China Univ Geosci, Sch Earth Sci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Fanxue,Lu, Jie,Zou, Zongqi,et al. Extensive Resetting of Feldspar Pb Isotopic Composition in Archean-Paleoproterozoic Granitic Rocks from the Kongling Terrane, South China: Implications for Tracing Thermal Evolutionary History[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2024,98(2):386-398. |
| APA | Meng, Fanxue,Lu, Jie,Zou, Zongqi,Guo, Jingliang,&Meng, Yuanku.(2024).Extensive Resetting of Feldspar Pb Isotopic Composition in Archean-Paleoproterozoic Granitic Rocks from the Kongling Terrane, South China: Implications for Tracing Thermal Evolutionary History.ACTA GEOLOGICA SINICA-ENGLISH EDITION,98(2),386-398. |
| MLA | Meng, Fanxue,et al."Extensive Resetting of Feldspar Pb Isotopic Composition in Archean-Paleoproterozoic Granitic Rocks from the Kongling Terrane, South China: Implications for Tracing Thermal Evolutionary History".ACTA GEOLOGICA SINICA-ENGLISH EDITION 98.2(2024):386-398. |
入库方式： OAI收割
来源：广州地球化学研究所
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