• 责任者：Zhong Yufang (Faculty of Earth Sciences ; China University of Geosciences ; Wuhan 430074 ; China) ; Ma Changqian
• 刊名：Earth Science
• 出版年：2011
• 卷期：36(4)
• 关键词：花岗岩 ; granite ; 铀—铅计时 ; U-Pb dating ; 江西 ; Jiangxi Province
• 页码：p.703-720
• 图表：4 illus., 4 tables, 66 refs.
• 分类号：0801
• 出版序号：832
• issnNo：ISSN1000-2383
• isbnNo：CN42-1233/P

The petrogenesis and tectonic setting of the Indosinian granites within South China Block (SCB) are controversial, and there is no sound geochronological proof on occurrence of Indosinian magmatism in the northwestern Jiangxi Province. The geochronological results show that Mengshan granites consist of three Indosinian magmatisms, with ages of (236±3) Ma, (220±3) Ma and (217±1) Ma, respectively. Researches on geochemistry and Hf isotope of zircons are carried out. The regularity of genetic types and the temporal-spatial distribution of the Indosinian magmatism in SCB are summarized. On this basis, the Indosinian tectonic setting and the petrogenesis of the Indosinian granites in SCB are discussed. The northwestward subduction of Pacific was probably responsible to the Indosinian magmatisms in SCB.