摘要
老厂红土型银矿床含银矿源体为中上石炭统碳酸盐岩 .通过研究该矿床成矿条件 ,认为含银矿源体的形成与大陆边缘裂谷构造和中晚石炭世沉积喷流作用密切相关 ,并与早石炭世火山作用有间接联系 ;银的次生富集条件是温暖潮湿的古气候、相对平缓的古地貌、碳酸盐岩岩性和中上石炭统地层层位 .
The silver bearing source unit of the Laochang lateritic silver deposit is carbonate rock of middle and upper Carboniferous. This paper deals with the metallogenic conditions of the deposit. It is suggested that the formation of the silver bearing source unit has a great deal to do with continental marginal rift structure and sedimentary exhalation of middle and late Carboniferous and has some indirect relations with early Carboniferous volcanicity. The conditions of silver secondary enrichment are warm and humid paleo climate, relatively gentle paleo topography, lithololgy of carbonate rock and stratigraphic horizon of middle and upper Carboniferous. The prospecting criteria for Laochang type lateritic silver deposit was put forward in the end.
出处
《中南工业大学学报》
CSCD
北大核心
2000年第3期195-198,共4页
Journal of Central South University of Technology(Natural Science)
基金
国家"九五"科技攻关计划资助项目! ( 96 914 0 3 0 5 0 1)
关键词
红土型银矿床
成矿条件
找矿标志
lateritic silver deposit
metallogenic conditions
prospecting criteria
Laochang
