| 岩浆矽卡岩及其矿床 |
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| 引用本文： | 吴言昌，邵桂清，吴炼.岩浆矽卡岩及其矿床[J].安徽地质,1996(2). |
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| 作者姓名： | 吴言昌，邵桂清，吴炼 |
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| 作者单位： | 安徽省地质科学研究所 |
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| 摘 要： | 岩浆矽卡岩是由钙硅酸盐熔（流）体或钙矽卡岩质岩浆贯入结晶或／和隐爆团结（结晶）形成的。主要呈脉状体，少数呈角砾岩筒（带），受断裂、裂隙构造控制，可产于各类不同岩石（层）中。岩浆矽卡岩与富碱中基－中酸性侵入岩密切共生，两者在主化学成分上具共轭、互补关系，组成特征的岩浆矽卡岩 －富碱（中基－中酸）侵入岩对。它们是深部高位岩浆房受钙质强烈混染的富碱闪长质岩浆发生不混溶分 离所衍生的两种不同性质的熔（流）体或岩浆的产物。与岩浆矽卡岩有关的各类矿床，主要是含同生铁氧 化物／硫化物液体的钙矽卡岩（矿）浆，伴随其成岩演变的产物，并构成了一个特殊的（岩）浆矽卡岩矿床系列。
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| 关 键 词： | 岩浆矽卡岩，矿床系列，安徽沿长江地区 |
MAGMATIC SKARN AND ITS ORE DEPOSITS |
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| Wu Yanchang; Shao Guiqing; Wu Lian.MAGMATIC SKARN AND ITS ORE DEPOSITS[J].Geology of Anhui,1996(2). |
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| Authors: | Wu Yanchang; Shao Guiqing; Wu Lian |
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| Abstract: | Magmatic skarns were resulted form calc silicate melt(fluid) or calc skarnic magma through injection crystallization or/and cryptoexplosion solidificatin (crystallization). They were found mainly veinlike, Sometimes breccia pipe (zone)-like in a variety of rocks (beds) and controlled by faults and fissure structure. Magmatic skarn was in close paragenesis with alkali rich intermediate basic intermediate acid intrusions and both of them showed conjugate complementary relationship in major chemical compositions and formed a typical magmatic skarn alkali rich (intermediate bdsic intermediate acid) intrusion couple. They were products of two kinds of different natured melt (fluid) or magma derived from the deep seated(high level magma chamber) and heavily Ca contaminated alkali rich dioritic magma through immiscibe separation. The mamatic skarn related ore deposits formed associated with the diagenetic evolution of syngenetic iron oxides/sulfides fluid bearing calc skarn (ore) magma to constitute a special magmatic sham ore deposit series. |
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| Keywords: | magmatic sharn magmatic skarn ore deposit series Yangtze area Anhui |
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