地球学报2001，Vol.22Issue(2)：129-134,6.
华北古大陆南缘的金属成矿作用
Metallogenic Process in the Southern Margin of North China Paleocontinent
张正伟 1翟裕生 2邓军 2朱炳泉 1林潜龙3
作者信息
- 1. 中国科学院广州地球化学研究所
- 2. 中国地质大学,
- 3. 河南省地质科学研究所,
- 折叠
摘要
Abstract
According to tectonization characteristics of the study area in the southern margin of North China Paleocontinent, the metallogenic system could be classified into five subsystems:①the pre-Mesoproterozoic metallogenic subsystem in the active southern margin of North China Paleocontinent;② the Middle-Late Proterozoic metallogenic subsystem in the inactive continent margin;③ the Early Paleozoic metallogenic subsystem in the converse type continent margin; ④the Paleozoic metallogenic subsystem in the active margin;⑤the Mesozoic metallogenic subsystem in the collision margin.
The metallogenic processes are mainly present as follows:①structure-magma-fluid metallogenic process, which is related to magmatic activities of Yanshanian intermediate-acid small rock masses;②structure-formation-fluid metallogenic process, which can be divided into two types according to the structural process levels,the ductile and ductile-brittle shear zone type ore deposit formed by the middle-deep level structural process and the structure-altered rock type ore deposit formed by shallow level structural process. The metallogenic belt is controlled by a EW-plunging mantle syncline. From east to west there are check-form fractures, which control synergic crust-mantle grano-porphyry rocks.关键词
金属矿床/成矿作用/古大陆边缘/地球化学急变带/东秦岭分类
天文与地球科学引用本文复制引用
张正伟,翟裕生,邓军,朱炳泉,林潜龙..华北古大陆南缘的金属成矿作用[J].地球学报,2001,22(2):129-134,6.
