摘要
皖南浙西分布着一条硅质岩带,时代为晚震旦世的皮园村组及早寒武世的荷塘组。这套硅岩已经得到了一定程度的研究,研究内容主要集中于硅岩的岩石学、环境类型、物质来源,近年来关于硅岩带作为金矿源层及金矿直接产层引起了人们的关注。研究区硅岩的地球化学、环境与物源的探讨都揭示了其作为热水成因的特点。笔者在积累前人资料的基础上,揭示了金矿源及其在附近寻找接触热液型的金矿床的可能性。本区硅岩作为矿源层或矿层,属于层控型,由当时海底热液喷流成岩作用和地下水热液成矿作用形成。
A chert belt occurs from western Zhejiang to southern Anhui, and belongs to early Cambrian Hetang Formation and late Sinian Piyuancun Formation. Some studies have been done on chert including petrology, sedimentary environment and material sources. Recently, more attention has been paid to chert because chert belt can be as gold source bed or gold - bearing strata. Geochemistry, sedimentary environment and material sources of chert from western Zhejiang to southern Anhui all proclaimed that chert is hydrothermal origin. Potentiality to find hydrothermal gold deposit in the chert belt is discussed.
出处
《地质与勘探》
CAS
CSCD
北大核心
2008年第1期55-61,共7页
Geology and Exploration
关键词
皖南浙西硅岩
热水成因
矿源层
层控型
chert, western Zhejiang and southern Anhui, hydrothermal, source bed, stratigraphy type
