| 金伯利岩的物化探异常特征及勘探方法 |
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| 引用本文： | 王聿军,仲卫国,张善法.金伯利岩的物化探异常特征及勘探方法[J].地球物理学进展,2005,20(1):108-111. |
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| 作者姓名： | 王聿军 仲卫国 张善法 |
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| 作者单位： | 山东省第七地质矿产勘查院,临沂,276006;山东正元地理信息工程有限责任公司,济南,250014 |
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| 摘 要： | 金伯利岩是金刚石的成矿母岩之一.金伯利岩的分布严格受断裂构造控制，矿体呈管状、脉状，具有成群、结带分布的特征；它具有磁性强、电阻率低、微量元素Cr、Ni 、Nb含量高的特征.地表物化探异常多为椭圆状、条带状且与断裂构造共生.综合物化探异常与矿体吻合较好；金伯利岩岩体形状空间分布与围岩的物性差别，决定了异常大小强弱、反映明显程度； Cr、Ni 、Nb的元素异常范围与金伯利岩管（脉）的形状有直接的对应关系.有针对性选用综合物化探方法、采用合适的测网寻找金伯利岩是行之有效的.
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| 关 键 词： | 金伯利岩 物化探 异常 构造控制 探勘方法 |
| 文章编号： | 1004-2903(2005)01-0108-04 |
| 收稿时间： | 2004-9-10 |
| 修稿时间： | 2004年9月10日 |
The geophysical and geochemical abnormal features and prospection methods of Kimberlite |
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| WANG Yu-jun,ZHONG Wei-guo,ZHANG Shan-fa.The geophysical and geochemical abnormal features and prospection methods of Kimberlite[J].Progress in Geophysics,2005,20(1):108-111. |
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| Authors: | WANG Yu-jun ZHONG Wei-guo ZHANG Shan-fa |
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| Abstract: | The kimberlite is one of mother rock of diamond. The distribution of kimberlite is strictly controlled by fracture structure. Its ore body is shaped in pipe, vein, which is distributed in groups or ligament. The kimberlite has the intensive magnetism, low resistivity, and high content of Cr、Ni and Nb. Its geophysical and geochemical prospecting anomaly over the earth's surface are mostly shaped in ellipse and ribbon, which is paragenetic with fracture structure. The synthetic geophysical and geochemical prospecting anomalies inosculate better with the ore body. The difference between the lithosome shape, distribution of kimberlite and the physical natures of adjacent rock decides the size, intensity of anomaly and the reflecting degrees. The anomaly range of elements Cr、Ni 、Nb has the direct corresponding relationship with the shape of kimberlite pipe or vein. The effective way to find the kimberlite is to select the synthetic geophysical and geochemical prospecting methods and adopt suitable survey nets. |
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| Keywords: | kimberlite geophysical and geochemical exploration anomaly structure control prospecting method |
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