李坝式金矿床成矿作用及矿床类型探讨  

DISCUSSION ON MINERALIZATION AND ORE TYPE OF LIBA-STYLE GOLD DEPOSITS

作　　者：程彧[1] 卢哲[2] 张东旭[2] 田继孝[2] 

机构地区：[1]甘肃有色地质勘查局,兰州 730000 [2]甘肃有色地质勘查局天水总队,天水 741020

出　　处：《矿产与地质》2003年第5期594-597,共4页Mineral Resources and Geology

摘　　要：李坝式金矿床成矿作用过程分为成矿元素初始富集期和构造叠加热液改造成矿期,岩浆活动主要是通过改变矿床地质体物化条件而促进矿化体的形成,并有部分岩浆物质参与成矿。该矿床与国内外经典卡林型金矿床具有较大的可比性,但是由于缺乏低温矿物组合以及与岩浆活动的亲密性证据,该矿床应属广义上的卡林型金矿床。The mineralizing processes of Liba-style gold deposits are divided into the period of preliminary accumulation of mineralizing element and structural superposition and hydrothermal mineralizing fluids reformation period. Magmatic acitivity promoted mineralization by means of changing the physical and chemical condition of the deposit ,and part of the magmatic materials take part in mineralizing .Liba-style gold deposits are very similar to Carlin type gold deposits . Being short of typical low temperature paragentic associations and closely related to magmatic acitivity,the gold deposits belong to a generalized carlin type gold deposits

关 键 词：金矿床 成矿作用 矿床类型 甘肃李坝 

分 类 号：P618.51[天文地球—矿床学]