Magmatism and Its Metallogenetic Effects during the Paleozoic Continental Crustal Construction in Northern
详细信息
- 责任者：Zhang Xiaohui (State Key Laboratory of Lithospheric Evolution ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Zhai Mingguo
- 刊名：Acta Petrologica Sinica
- 出版年：2010
- 卷期：26(5)
- 关键词：岩浆作用 ; igneous processes ; 大陆增生 ; continental accretion ; 华北平原 ; North China Plain
- 页码：p.1329-1341
- 图表：illus., 99 refs.
- 分类号：0801
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The northern North China, tectonically composed of a Phanerozoic orogen and a Precambrian craton, witnesses a panoramic scenario of continental crustal accretion and reworking in the model of plate tectonics during the Paleozoic times. It is driven by rifting-spreading-extinction cycle of paleo-oceans and subduction-collision-extension processes at convergent plate margin, with a series of the associated magmatic events produced. These magmatic expressions constitute an excellent window through which the relationship among crust-mantle interaction at convergent plate margin, continental crustal evolution and large-scale metallogenesis can be fully characterized. Based on an overview on the geochronological and geochemical data concerning the Paleozoic magmatic rocks from the northern North China, the paper outlines the evolved geodynamic scenarios inherent in these magmatic sequences,envisages multi-stage crustal accretion and reworking mechanism during the Paleozoic continental construction in northern North China and ends with a tentative evaluation of promising magmatic and tectonic reservoirs for metallogenesis.