澳大利亚贱金属矿床成矿特征

METALLOGENIC CHARACTERS OF BASE METALS DEPOSITS IN AUSTRALIA

澳大利亚元古界和古生界层控铅锌矿床与海底喷流—热水沉积与交代,以及火山活动有着密切的成因联系。主要成矿时代为中晚元古代和早古生代,本文着重讨论其超大型铜铅锌矿床的地质特征、成因及找矿评价标志。并对比我国相似铜铅锌矿床类型,探讨我国热水成因铜铅锌矿床的成矿地质特征,提出进一步找矿评价方向。

In Australia, strata-bound Cu-Pb-Zn deposits of Proterozoic and palaeozoic Era-them are closely related to submarine eruption - deposition and displacement in hot water and volcanic activity in geneses. Middle-late proterozoic Era and early Palaeozoic Era are the main metallogenic epochs. In this paper, the geological features, genesis and evaluation criteria for prospecting of the superlargetype Cu-Pb-Zn deposits are emphasized. By comparing with the similar type of Cu-Pb-Zn deposits in our country,the metallogical geological features of Cu-Pb-Zn deposits in hydrother-mal genesis of our country are discussed, and the direction of further prospecting is suggested.