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volcanics
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火山岩,近地表火成岩
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详细解释：
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以下为句子列表：
英文: Granite greenstone-hosted, meta-clastics-hosted, volcanics-subvolcanics hosted and sedimentary rock-hosted micro-disseminated gold deposits are of industrial value.
中文: 具有工业价值的金矿类型以花岗岩－绿岩型、变碎屑岩型、微细浸染型、火山－次火山岩型为主。
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英文: Its petrochemical characteristics show that the volcanics was formed in oceanic island tectonic environment.
中文: 岩石化学特征表明火山岩形成于洋岛构造环境。
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英文: Marine volcanics of Early Ordovician was found in Zhifang region.
中文: 摘要纸房地区具有早奥陶世海相火山岩存在。
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英文: Strong volcanic activities, and diversified and extensively-outcropping volcanics appear in Xinjiang.
中文: 摘要新疆火山活动强烈，火山岩类型多，出露广泛。
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英文: The study of geological characteristics and geochemical conditions of Mazhuangshan gold deposit shows that it is closely related with old metamorphic basement and volcano-magmatic activities as well as volcanics and volcaniclastics of Mazhuangshan-Mingshu
中文: 摘要对马庄山金矿地质特征及地球化学条件研究表明，马庄山金矿的形成与古老变质基底、火山岩浆活动及马庄山一明水上叠火山岩盆地的火山岩、火山碎屑岩紧密相关，并受到晚古生代红河盆地闭合而派生的构造控制。
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