| 判别解释法区分磁异常 |
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| 引用本文： | 赵举孝.判别解释法区分磁异常[J].物探与化探,1987,11(3):188-196. |
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| 作者姓名： | 赵举孝 |
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| 作者单位： | 地矿部航空物探总队研究所 |
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| 摘 要： | 判别解释法区分磁异常是利用磁性矿床和磁性岩体上的电磁异常特征和表征航磁与航电异常相互关系的相关系数作为特征参数,建立线性判别函数,按一定的运算规则将多变量变成一个新的单变量,并以它作为判别指标,对未知磁异常进行综合评价分类.通过对八个磁异常十三条测线的计算所得的判别值进行判别解释,表明了方法是有效的,能够客观、快速、正确地对磁异常进行综合评价分类.
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THE DIFFERENTIATION OF MAGNETIC ANOMALIES BY DISCRIMINANT INTERPRETATION TECHNIQUE |
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| Institution: | Research Institute of Aerogeophysical Survey, MGMR |
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| Abstract: | The principle of differentiating magnetic anomalies by discriminant interp-retation technique lies in utilizing characteristics of electromagnetic anomaliesover magnetic deposits and magnetic rock bodies as well as correlation coefficientbetween aeromagnetic anomaly and anomaly of airborne electrical prospectingas characteristic parameters to establish linear discriminant function, and,according to certain operation regulations, converting multivariates into a newsingle variate. This variate is then used as a discriminant index to performintegrated appraisal and classification of unknown magnetic anomalies.The discriminant interpretation carried out on discriminant values obtainedfrom 13 survey lines over 8 magnetic anomalies suggests the effectiveness ofthis method, which can be used to conduct integrated appraisal and classifica-tion of magnetic anomalies objectively, rapidly and accurately. |
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