• 责任者：Luo Gai （Chengdu University of Technology ; Chengdu 610059 ; China) ; Yang Xuejun
• 刊名：Geological Survey and Research
• 出版年：2009
• 卷期：31(1)
• 关键词：花岗岩 ; granite ; 四川 ; Sichuan Province
• 页码：p.15-21
• 图表：10 illus., 3 tables, 11 refs.
• 分类号：0801
• issnNo：ISSN1672-4135
• isbnNo：CN12-1353/P

According to the research on the geochemical characteristics of trace elements, rare earth elements and trace element ratio like K/Rb and Rb/Sr, it is found that all of the yanggonghai, Dagaizhai and Erdaoqiao granite bodies, with Eu weak negative anomaly or no anomaly in REE distribution patterns, are syntectic granites. These bodies were formed in the syn-collisional orogenic environment, and attribute to syn-structure intrusive rocks. In late Indosinian, with a large-scale continent-continent collision, fractures and fold structures were formed, the earth crust thickened, shear heat under the deep crust made lower crust partial melt, and the syntectic magma up-emplaced through the fractures and then formed granite bodies. oft-com:office:office" />