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环西南太平洋与斑岩有关的碳酸盐-贱金属金矿床系列通过对环西南太平洋各金矿的对比,有助于对与斑岩有关的中温热液金矿床的分类。碳酸盐-贱金属金矿系列形成于斑岩体周围相对较高的层位中。侵入角砾岩及低平火山口角砾岩筒,是成矿前岩浆蒸气爆发的产物。岩浆去气作用...
Central South Pacific Porphyry-Related Carbonate-Base Metals Gold Deposits Series The classification of moderate-temperature hydrothermal gold deposits associated with porphyries can be facilitated by a comparison of the gold deposits in the southwestern Pacific Rim. The carbonate-base metal gold series is formed in a relatively high horizon around the porphyry. Invasive breccia and low level crater breccia tube, is the product of pre-ore magma vapor explosion. Magma to gas effect ...