| 金伯利岩和钾镁煌斑岩的磁性特征与航空磁测普查效果 |
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| 引用本文： | 张昌达.金伯利岩和钾镁煌斑岩的磁性特征与航空磁测普查效果[J].地质科技情报,1993(Z1). |
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| 作者姓名： | 张昌达 |
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| 作者单位： | 中国地质大学 武汉 |
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| 摘 要： | 讨论了国内外用磁法普查金伯利岩的问题。与现代质子磁力仪的精度相适应,金伯利岩按磁性分为四类:实际无磁性的、弱磁性的、磁性的、强磁性的。大多数金伯利岩和钾镁煌斑岩是弱磁性的或磁性的。金伯利岩管的磁性无论在平面上和沿深度都是不均匀的。航空磁测普查金伯利岩和钾镁煌斑岩取得良好效果的3个条件中,最重要的是围岩磁性干扰水平低。
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| 关 键 词： | 金伯利岩 钾镁煌斑岩 磁性 航空磁测 |
MAGNETIC CHARACTERISTICS OF KIMBERLITES AND LAMPROITES AND THEIR AEROMAGNETIC SURVEY |
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| Zhang Changda.MAGNETIC CHARACTERISTICS OF KIMBERLITES AND LAMPROITES AND THEIR AEROMAGNETIC SURVEY[J].Geological Science and Technology Information,1993(Z1). |
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| Authors: | Zhang Changda |
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| Abstract: | Problems of using magnetic methods to find kimberlite pipes at home and abroad are discussed in this paper. In accordence with the precision of modern proton magnetometer, kimberlites are classified into four classes in terms of their magnetic properties: practically non-magnetic, weak magnetic, magnetic, and strongly magnetic. Most of kimberlites (kb) and lamproites dp) are weak magnetic or magnetic. Their magnetic properties are in homogeneous either horizontally or vertically. Of the three conditions for the best result of aeromag-netic survey for kb and lp pipes, the most important is a low magnetic interference level of the host rocks. |
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| Keywords: | kimberlite lamproite magnetic property aeromagnetic survey |
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