摘要
以甘肃境内所发现和勘查的133处金矿床的时空分布为基础,以含矿建造为原则,将甘肃金矿类型初步划分为7个建造(预测)类型和10个亚类型:火山岩型(海相火山岩型)、岩浆型(包括斑岩型、基性—超基性岩型、中酸性岩型、矽卡岩型)、浅变质碎屑岩型、破碎蚀变岩型、微细浸染型(沉积建造中的金矿类型)、花岗—绿岩型、砂金型,尝试性的厘定了21个金矿床式,随着认识不断深化和科学表达,矿床式(类型)的研究和厘定将更加科学,以期为金矿勘查和预测评价及找矿工作提供参考依据。
In principle of the ore-bearing formation, gold deposit types are initially divided into 7 formations （prospecting） types and 10 sub-types （volcanic rock-type or marine voeanic rock-type, magmatic rock-type including porphyry-type, basie-uhrabasic rock-type, intermediate-acid rock-type and skarn-type, low-grade metamorphic clastic rock-type, structural alteration rock-type, fine disseminated type, granite-greenstone-type and placer type） in Gansu, based on the spatial-temporal distribution of 133 gold deposits being found and explorated. There are 21 gold deposit-types to be determined. With the deepening understanding and scientific expression of gold deposit-types, studying and determining of deposit-types will be more scientific, which provide the basis for exploration, prediction-evaluation and prospection of gold deposits.
出处
《甘肃地质》
2012年第2期21-29,共9页
Gansu Geology
基金
中国地调局甘肃省区域成矿规律研究及矿产预测评价(编码:1212010633901)部分成果
"甘肃省金矿产资源潜力评价"的部分成果
关键词
金矿类型
时空分布
矿床式
甘肃
gold deposit types
spatial-temporal distribution
deposit-type
Gansu
