| 青海锡铁山铅锌矿构造控矿型式与特征 |
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| 引用本文： | 冯佐海,李少游.青海锡铁山铅锌矿构造控矿型式与特征[J].大地构造与成矿学,1997,21(2):167-172. |
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| 作者姓名： | 冯佐海 李少游 |
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| 作者单位： | 桂林工学院 |
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| 摘 要： | 锡矿山铅锌矿受含矿岩系主褶皱和韧性剪切带的双重控制。矿体主要形成于主褶皱转折端厚层大理岩与含碳石英片岩间的构造虚脱及转折端附近。后期韧性剪切带内强弱不同的构造置换型式，是导致Ⅰ、Ⅱ、Ⅲ矿带矿体规模和形态差异的主要因素。因此，矿体最终规模和形态，不但取决于主褶皱的几何形态和空间展布形式，也取决于韧性切剪带对其叠加和改造的程度。
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| 关 键 词： | 控矿构造 褶皱 韧性剪切带 青海 锡铁山Pb－Zn矿 |
THE ORE-CONTROLLING STRUCTURAL MODEL AND ITS CHARACTERISTICS IN THE XITIESHAN Pb-Zn MINE OF QINGHAI PROVINCE |
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| Abstract: | A detailed study has revealed that the ore bodies in the Xitieshan Pb-Zn Mine are mostly trapped within the intra-bed open space caused by folding between the thick-layerd marble and the carboniferous quartz shist along the hinge zone of the main-phase fold, and its vicinity. Furthermore, it is found that the post-folding ductile shear zone is strainly partitioned with structural transposition, and that the transposition pattern is the major factor to control the sizes and shapes of the ore bodies found along zone-Ⅰ, zone-Ⅱ, zone-Ⅲ. It is thus concluded that the final sizes and shapes of the ore bodies in the mining area are not only controlled by the geometric pattern and its spacial orientation of the main-phase fold, but also by the superimposed post-folding ductile shear zone-the way and to what extent it has reworked. |
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| Keywords: | ore-controlling structures fold ductile shear zone Xitieshan Pb-Znmine Qinghai |
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