Geochemistry and Petrogenesis of Granitoid Rocks in Motianling Area and Yanbaoshan Area, oft-com:office:smarttags" />Northern Guangxi
详细信息
- 责任者：Han Zongzhu (Key Lab. of Submarine Geosciences and Prospecting Techniques ; College of Marine Geoscience ; Ocean University of China ; Qingdao 266100 ; China) ; Yi Weihong
- 刊名：Periodical of Ocean University of China
- 出版年：2012
- 卷期：42(4)
- 关键词：花岗岩类 ; granitoid ; 岩石地球化学 ; lithogeochemistry ; 广西 ; Guangxi Province
- 页码：p.59-65
- 图表：8 illus., 2 tables, 21 refs.
- 分类号：1702
- issnNo：1672-5174
- isbnNo：37-1414/P
摘要
Granitoid rocks are widely distributed in Motianling Area and Yanbaoshan Area in northern Guangxi.According to rock geochemistry,these granitoid rocks are characterized by relatively enriched in Si、K and poor in Na、Ca、Ba、Sr、Eu,and have higher LREE.These rocks belong to alkaline——calcium-alkaline granites,and have high fractional crystallization.Based on the analysis of their petrogenesis,it is concluded that the granitoid rocks are formed at the collision between the Cathaysia block and the Yangtze block or between the Yangtze block and a certain island arc block,and are postorogenic granites.