论文部分内容阅读
北秦岭天水党川地区构造活动及造山作用强烈，形成大量的晚加里东期、早海西期花岗岩分布。通过对区内花岗岩类的研究，将晚加里东期花岗岩类划分为南沟超单元、黄土梁超单元；早海西期花岗岩类划分为火炎山超单元、党川超单元。它们分别形成于岛弧环境（岛弧型）及大陆环境（大陆型）。
The tectonic activities and orogenic activities of the Dangchuan area in the Tianqian Mountains in the North Qinling are intense, forming a large number of late Caledonian and Early Hercynian granite distributions. Through the study of granitoids in the area, the Late Caledonian granitoids are divided into Nanogou ultra-units and Loess-earth super units. The Early Hercynian granitoids are divided into Huoyan super units and Dichuan units. They were formed in the island arc environment (island arc type) and the mainland environment (continental type).