中国前寒武纪矿床时空分布  

Temporal and Spatial Distribution of Precambrian Mineral Deposits in China

作　　者：沈保丰[1] 杨春亮[1] 翟安民[1] 胡小蝶[1] 曹秀兰[1] 宫晓华[1] 

机构地区：[1]天津地质矿产研究所,天津300170

出　　处：《矿床地质》2004年第S1期62-70,共9页Mineral Deposits

基　　金：地质大调查综合研究项目(编号K1.4-3-1)"前寒武纪成矿作用"的资助

摘　　要：文章详细地分析研究了中国前寒武纪矿床的时空分布。指出中国前寒武纪蕴藏着丰富的矿产资源,形成了众多的铁、铜、铅锌、镍、金、稀土、锰、石墨、菱镁矿、滑石、硼、磷、硫铁矿、金红石、蛭石等大型-超大型矿床。成矿时代从古太古代到震旦纪,但以新太古代、古元古代、中元古代-青白口纪3个地质时期为成矿高峰期。随着中国前寒武纪地史的演化,成矿物质种类和矿床类型具有明显的变化和增多。中国前寒武纪矿床主要分布在陆块区,尤以华北陆块、扬子陆块较多,较少分布在造山带。而陆块边缘和陆块内部裂谷是前寒武纪矿床产出的十分有利的空间。This paper has made a detailed analysis of the temporal and spatial distribution of Precambrian mineral deposits in China. It is pointed out that there exist abundant Precambrian mineral resources in China, forming numerous large-superlarge iron, copper, lead, zinc, nickel, gold, REE, manganese, graphite, magnesite, talc, boron, phosphorus, pyrite,rutile and vermiculite deposits. The minerogenetic epoch lasted from Paleoarchean to Sinian, with Neoarchean, Paleoproterozoic and Mesoproterozoic-Qingbaikouan being the culmination periods. With the geological evolution in Precambrian, minerogenetic materials and types of mineral deposits obviously varied and increased. Precambrian mineral deposits are mainly distributed in paleocontinents,especially in North China platform and Yangtze platform,with a few distributed in orogenic belts. Paleocontinental margins and rifts within paleocontinents are very favorable places for the distribution of Precambrian mineral deposits in China.

关 键 词：前寒武纪矿床 时空分布 成矿期 陆块边缘 中国 

分 类 号：P534.1[天文地球—古生物学与地层学]