| 河南省肖畈钼矿地质特征及动力学背景 |
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| 引用本文： | 孟芳,欧阳兆灼,骆亚男.河南省肖畈钼矿地质特征及动力学背景[J].地质与资源,2012,21(4):400-405. |
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| 作者姓名： | 孟芳 欧阳兆灼 骆亚男 |
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| 作者单位： | 1. 中国地质大学, 北京 100083;2. 沈阳地质矿产研究所, 辽宁 沈阳 110034;3. 河南省地质矿产局第三地质调查队, 河南 信阳 464000 |
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| 基金项目： | 全国危机矿山接替资源找矿项目 |
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| 摘 要： | 肖畈钼矿床是东秦岭-大别山地区典型的斑岩型钼矿床.与矿床有关的小侵入岩为肖畈岩体.岩体分两期侵入，第一期为花岗斑岩，第二期为斑状花岗岩.矿石中金属矿物以辉钼矿、黄铁矿为主，脉石矿物以石英为主，矿石构造有细脉状、浸染状及团块状.矿床成矿年龄为142 Ma.其与金堆城钼矿、南泥湖钼矿等斑岩型钼矿均形成于早白垩世，可归为东秦岭-大别山钼矿带第2成矿期，是印支期后大别造山带构造体制从挤压收缩向区域性伸展的成矿事件.
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| 关 键 词： | 地质特征 斑岩型 肖畈钼矿 河南省 |
| 收稿时间： | 2011-11-22 |
GEOLOGICAL CHARACTERISTICS AND GEODYNAMICAL SETTING OF THE XIAOFAN MOLYBDENUM DEPOSIT IN HENAN PROVINCE |
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| MENG Fang
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OUYANG Zhao-zhuo
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LUO Ya-nan.GEOLOGICAL CHARACTERISTICS AND GEODYNAMICAL SETTING OF THE XIAOFAN MOLYBDENUM DEPOSIT IN HENAN PROVINCE[J].Geology and Resources,2012,21(4):400-405. |
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| Authors: | MENG Fang OUYANG Zhao-zhuo LUO Ya-nan |
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| Institution: | 1. China University of Geosciences, Beijing 100083, China;2. Shenyang Institute of Geology and Mineral Resources, Shenyang 110034, China;3. No. 3 Geological Survey Party, Henan Bureau of Geology and Mineral Resources, Xinyang 464000, Henan Province, China |
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| Abstract: | The Xiaofan molybdenum deposit is a typical porphyry deposit in the northern margin of East Qinling-Dabie Mountain.The Xiaofan rock mass,which related to Mo deposit,comprises two intrusive bodies.The first intrusion is dominated by porphyry granite.The second consists of mainly porphyritic granite.The metallic minerals in the ore include mainly molybdenite and pyrite,with gangue minerals dominated by quartz.The mineralization shows the change in the structure of ores from veinlet to dissemination and crumb.The metallogenic age of the deposit is 142 Ma or Early Cretaceous,which is the same time as those of Jinduicheng and Nannihu Mo deposits.Thus they belong to the second mineralization epoch of East Qinling-Dabie molybdenum metallogenic belt.The metallogenic event took place in the post-Indosinian Dabie orogenic belt when the tectonic system was transiting from compression to regional extension. |
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| Keywords: | geological characteristics porphyry type Xiaofan Mo deposit Henan Province |
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