U-Pb Zircon Geochronology and Geochemistry of Jianggoushan Intrusion in
详细信息
- 责任者：Song Weimin (Shenyang Institute of Geology and Mineral Resources ; Shenyang 110034 ; China) ; Bian Xiongfei
- 刊名：Geology and Resources
- 出版年：2010
- 卷期：19(4)
- 关键词：二长花岗岩 ; monzogranite ; 元素地球化学 ; elements geochemistry ; 铀—铅计时 ; U-Pb dating ; 辽宁 ; Liaoning Province
- 页码：p.339-345
- 图表：4 illus., 2 tables, 16 refs.
- 分类号：0801
- issnNo：ISSN1671-1947
- isbnNo：CN21-1458/P
摘要
The Jianggoushan intrusive body in Beipiao area,Liaoning Province,mainly monzogranite,belongs to high-potash calc-alkalic series. It is characterized by high SiO2 (71.4%~73.78%), rich alkali and relative high Na2O (Na2O/K2O = 1.17), with low Mg# (averagely 0.18) and high A/CNK (1.09~1.14). Normative minerals commonly include corundum (1.36~ 3.01). These data prove that the intrusion is of S-type granite. Previous study shows that the S-type granite of Middle Triassic (229.2~237.5 Ma) in the west of the area is from the collision of Siberia plate and North China plate. This paper agrees with the previous study and provides information for the research on the evolution of continental lithosphere in the plate’s margins.