摘要
东川矿区多个基性侵入岩体具不同程度的铜矿化。新塘辉长岩和白锡腊辉长岩中赋存工业铜矿体及富铜铁矿体。据稳定同位素资料：大部分裂隙富矿的δ３４Ｓ值趋于零，Ｈ、Ｏ、Ｃ同位素组成落入岩浆热液区，说明岩浆热液对裂隙富矿的形成起了重要作用。东川矿区基性岩浆侵入活动，对矿床的形成提供了部分铜质和热动力，即部分铜质来自基性岩浆。
AbstractIn Dongchuan ore-field, there are many basic intrusive rock bodies with more or less Cu metallogenesis, And the commercial Cu orebody and rich Cu-Fe orebody are occurred in Xintang gabbro and Bailaxi gabbro. According to the stable isotope data, the δ34S of most rich ore in fissure is near zero and H,O,C isotopic composition are in the magma hydrothermal region, which show the hydrothermal of magma has an important role in the formation of rich orebody in fissure. In Dongchuan orefield, the intrusion of basic magma supplied a part of Cu and thermal dynamic force for the deposit formation.
出处
《云南地质》
1998年第1期75-80,共6页
Yunnan Geology
