| 岩石钾质变化及钾交代与成矿关系 |
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| 引用本文： | 谢荣举,彭省临.岩石钾质变化及钾交代与成矿关系[J].大地构造与成矿学,1998,22(3):274-279. |
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| 作者姓名： | 谢荣举 彭省临 |
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| 作者单位： | 中南工业大学地质系 |
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| 摘 要： | 钾质高低及变化可反映岩石演化程度和钾交代作用。发生钾交代的岩石为成矿有利岩石和找矿标志。岩石钾交代与钾质升高归根于富碱的地幔流体活动。上升的地幔流体交代上地幔和地壳岩石形成富碱岩石和碱交代岩，并活化迁移不同围岩中成矿元素形成各种矿床。大地构造单元边缘与陆内张裂活动带是地幔流体交代活动场所和大型矿床形成地。许多矿床包括金矿床和钾交代关系密切。
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| 关 键 词： | 岩石钾含量 钾交代 地幔流体活动 成矿作用 |
K_2O CONTENT, K-METASOMATISM OF ROCK AND METALLOGENESIS |
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| Abstract: | K2O content and variation reflect the evolution of the rock and K-metasomatism. Kmetasomatism is one of the indicators of favorable rock and ore location. Alteration and enrichment of K2O in rock are derived mainly from mantle fluid activity. Upward mantle fluid metasomatizes the upper mantle and crust rocks, forming alkali-enriched rock, mobilizes elements forming different deposits. Tectonic unit margin and intracontinental extended belt are the places of mantle fluid activity, alkali metasomatism and large deposits localization. Gold mineralization has a special relationship to K-metasomatism. |
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| Keywords: | K2O content in rock K-metasomatism mantle fluid activity mineralization |
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