Petrogenesis and Geodynamic Setting of Jiandeng Potassic Granite at the End of the Neoarchean in Zanhuang Complex, North China Craton
详细信息
- 责任者：Yang Chonghui (Institute of Geology ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Du Lilin
- 刊名：Earth Science Frontiers
- 出版年：2011
- 卷期：18(2)
- 关键词：杂岩 ; complexes ; 花岗岩 ; granite ; 地球动力学 ; geodynamics ; 太行山 ; Taihang Mountains
- 页码：p.62-78
- 图表：11 illus., 3 tables, 90 refs.
- 分类号：0801
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Jiandeng granite in the Zanhuang Complex is located in the Northwestern Lincheng County, Hebei Province. The pluton consists mainly of K-feldspar granite and monzogranite with few quartz diorite enclaves. SHRIMP dating of zircon from the granite yielded an age of (2 490±13) Ma. The geochemical data show that the Jiandeng granite is similar to the S-type granite formed by anatexis of the juvenile crust in a tectonic transition setting from compression to extension, and the quartz diorite may represent a residue of the source rock. The formation of Jiandeng granite marks a tectono-magmatic event resulting in stabilization of the North China Craton at the end of the Neoarchean.