地质科技情报2012，Vol.31Issue(5)：119-127,135,10.
北山南部柳园地区古生代—早中生代大陆地壳增生过程中的岩浆活动与成矿效应
Magmatism and Its Metallogenetic Effects during the Paleozoic-Triassic Continental Crustal Construction in the Liuyuan Area, South Beishan, NW China
摘要
Abstract
The Beishan orogenic belt, locating in the south of the Central Asian orogenic belt(CAOB), witnesses a panoramic scenario of continental crustal accretion and reworking in the model of plate tectonics during the Paleozoic-Triassic . It is driven by rifting-spreading-extinction cycle of paleo-oceans and subduc-tion-collision-extension processes at convergent plate margin,with a series of the associated magmatic e-vents. The generation of syn-and post-orogenic granitoids represents horizontal (lateral) and vertical crustal growth. Based on an overview on the geochronological and geochemical data concerning the Paleozoic magmatic rocks from the Liuyuan area, the paper outlines the evolved geodynamic scenarios inherent in these magmatic sequences, reveals multi-stage crustal accretion and reworking mechanism during the Paleozoic continental construction in south Beishan belt and promises magmatic and tectonic reservoirs for met-allogenesis.关键词
大陆地壳增生/岩浆作用/成矿效应/北山Key words
continental crustal accretion/ magmatism/ metallogenesis/ Beishan area分类
天文与地球科学引用本文复制引用
吕新彪,朱江,曹晓峰,陈超,吴春明,胡庆成..北山南部柳园地区古生代—早中生代大陆地壳增生过程中的岩浆活动与成矿效应[J].地质科技情报,2012,31(5):119-127,135,10.基金项目
国家"305"项目(2011BAB06B04-05) （2011BAB06B04-05）
