我国风化矿床若干问题探讨  

DISCUSSION ON SOME ASPECTS OF WEATHERED MINERAL DEPOSITS IN CHINA

作　　者：陈诗恩 

机构地区：[1]广东有色九三一地质队

出　　处：《矿产与地质》1989年第3期34-39,46,共7页Mineral Resources and Geology

摘　　要：通过我国风化矿床、风化淋滤式铁帽和铁矿的找评工作实践,认为铁帽的形成具有多种途径和方式。结合各种铁帽的成因特点,归纳为七种类型,提出了铁帽的多元成因;同时探讨了砂金矿床的成矿作用。提出了原生金的溶解—迁移—再沉积的砂金新成因理论。最后,指出岩溶作用对成矿的意义。Based on working experience on searching and evaluating iron ore deposits of weathering and weathering infittration types and gossan, the author recognizes that the formation of gossan has several ways. Considering the genetic characters of various gossans, there are seven types of genesis altogether. Poly-genesis for the gossans is suggested. The mineralization of gold placers is di sscussed. And a new genetic theory of that the gold placers were formed by dissolution-emigration resedimentation of primary gold has put forward. At last, the significance of karst process to the mineralization is indicated in this paper.

关 键 词：风化矿床 砂金矿床 次生富集带 硫化矿床氧化带 岩溶作用 风化壳 成因理论 金矿化 成矿理论 铅锌矿床 

分 类 号：P5[天文地球—地质学]