自然铜、铜合金矿物及其矿床形成机理新探索

描述了自然铜、铜合金矿物及其矿床形成的新机制。在岩浆及热液中，铜及铜合金可呈氢化物、羧基配合物及纳米粒子活性、迁移、富集形成自然铜矿床，或经以后的地质事件，长期、多次迁移富集，叠加形成富而大的自然铜矿床。在表生条件下，铜的硫化矿物被氧化分解，可形成亚铜的硫代硫酸盐及氯配合物，部分可形成铜的硫酸盐配合物迁移，由于硫代硫酸盐被氧化，亚铜岐化可形成高纯度的自然铜，但它易氧化形成孔雀石、蓝铜矿、赤铜矿、黑铜矿、硅孔雀石等，因此很难形成自然铜矿床。

A NEW APPROACH TO GENETIC MECHANISM FOR COPPER AND ITS ALLOY MINERALS

A new genetic mechanism for copper and its alloy minerals is put forward. Copper and its alloys are remobilized, migrated and enriched as hydride, carbonyl complex and nanometric particles in magma and hydrothermal solution. In supergene conditions, copper sulfides are oxidized and decomposed into cuprous thiosulfate and chlorine compex or migrated as copper sulfate. Oxidization of cuprous thiosulfate results in dispropotion of cuprous into pure copper which is easy to be oxidized, forming malachite, azurite, cuprite and chrysocolla, etc., thus, is difficult to form native copper deposit.