SHRIMP Zircon U-Pb Dating and Geochemical Characteristics of Reshui Granitic Batholith, Northern Guangdong Province
详细信息
- 责任者：Deng Ping (Geological Institute ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Ling Hongfei
- 刊名：Acta Geologica Sinica
- 出版年：2011
- 卷期：85(8)
- 关键词：黑云母花岗岩 ; biotite granite ; 侵入体 ; intrusions ; 铀—铅计时 ; U-Pb dating ; 广东 ; Guangdong Province
- 页码：p.1274-1283
- 图表：8 illus., 3 tables, 64 refs.
- 分类号：0801
- 出版序号：1636
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
The Reshui granite is located at south of the Guidong composite granite. SHRIMP zircon U-Pb dating yields an age of (162.8±5.8) Ma (MSWD=4.2), suggesting its formation in the early Yanshanian period. Source rock discriminating suggests pelite for the origin of the granite. Under the tectonic environment of subduction of the paleo-Pacific Plate in the early Yanshanian period, which revivified the pre-existed Dadongshan-Guidong fault, the Reshui granite was formed from a granitic magma probably generated by low-degree partial melting of the Early Mesoproterozoic meta-pelite in the source.