| 大河超基性岩带岩体的含矿性 |
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| 引用本文： | 李法岭. 大河超基性岩带岩体的含矿性[J]. 矿产与地质, 2008, 22(3): 211-215 |
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| 作者姓名： | 李法岭 |
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| 作者单位： | 河南省地质调查院,郑州,450007;河南省地质矿产勘查开发局第三地质调查队,河南,信阳,464000 |
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| 摘 要： | 大河超基性岩带岩体大多呈透镜状、脉状产出，可分为南（S）北（N）两个岩带，北带又进一步划分为N-Ⅰ、N-Ⅱ亚带；N-Ⅰ亚带岩体总体属铁质超基性岩，N-Ⅱ亚带和S带中的岩体为偏镁质的超基性岩。岩带已发现有铬、镍矿体，但铬的矿化弱、矿体规模小;镍在岩带中矿化普遍，随岩体中MgO质量分数升高，镍的矿化强度也相应增加，并伴有钻、铂族等有益组分。
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| 关 键 词： | 超基性岩 含矿性 镍矿(化)体 钴 铂族 大河 桐柏县 河南省 |
Ore-bearing properties of the orebodies in the Dahe ultrabasic rocks zone |
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| LI Fa-ling. Ore-bearing properties of the orebodies in the Dahe ultrabasic rocks zone[J]. Mineral Resources and Geology, 2008, 22(3): 211-215 |
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| Authors: | LI Fa-ling |
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| Affiliation: | LI Fa-ling (1. Henan Institute for Geological Survey, Zhengzhou 450007 ,China; 2. No. 3 Geological Surveying Team of Henan Geology and Mineral Resources Exploration Bureau, Xinyang, Henan 464000,China) |
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| Abstract: | Most rockbodies of the Dahe ultrabasic rocks zone occurred in lens and veins,which can be classified into South zone and North zone with the North zone being further classified into N-Ⅰ and N-Ⅱ sub-zones. The whole rockbody of N-Ⅰ sub-zone is iron-ultramafic rocks, while the rocks of N-Ⅰ sub-zone and South zone belong to magnesium-ultramafic rocks. The orebodis of Cr, Ni have been discovered in this rocks zone with Cr mineralization being weak and the scale of orebodies being small, while Ni mineralization being wide. As the mass fraction of MgO in rockbodies increased, Ni mineralization degree has also enhanced with some valuable components of Co, Pt groups associated. |
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| Keywords: | ultrabasic rocks ore-bearing properties Ni orebodies （mineralization） Co Pt groups Dahe Tongbo County Henan Province |
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