摘要
大厂超大型锡-多金属矿床中发育同生层状和后生脉状两种矿体类型。本文从多方面论证了层状矿体的形成与海底深循环热水活动有关。通过两类矿体的对比研究,并结合成矿地质背景条件分析,笔者认为该矿床是一个热水沉积成矿和岩浆热液叠加再富集成矿的复成因超大型矿床。
Developed in the Dachang superlarge Sn-polymetallic ore deposit are two types of orebo-dies,i.e.,syngenetic stratiform and epigenetic vein orebodies.This paper presents many linesof evidence suggesting that the formation of this deposit is closely related to deep-circulatinghot water at the sea bottom.Comparative studies of the two types of orebodies,in conjunctionwith the geological backgrounds for mineralization,the authors consider that this deposit is asuperlarge hydrothermal-sedimentary deposit enriched by subsequent magma pneumatolyto-hy-drothermal superimposition.
出处
《地球化学》
CAS
CSCD
北大核心
1993年第3期252-260,共9页
Geochimica
