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本文通过窑街煤田磁法勘探圈定超基性岩体的实例,试图说明在煤田物探中应用磁法勘探寻找和圈定煤田中岩浆岩侵入体的有效性。文中通过若干典型磁异常剖面的对比和延拓换算,取得了有关侵入岩体的分布范围、岩体形态和埋藏深度的信息。本次在煤田上采用磁法勘探工作显然还是十分粗浅的,但足以说明磁法勘探效果是良好的。可以借助于磁法勘探的配合,解决电法勘探和地震勘探目前在煤田中尚难解决的圈定各种侵入体的地质任务。
In this paper, an example of delineation of ultramafic rocks by means of magnetic exploration in Yaokou coalfield is attempted to illustrate the effectiveness of applying magnetic prospecting to find and delineate magmatic intrusions in coalfields. Through the comparison and extension conversion of some typical magnetic anomalies, the information about the distribution range, rock mass morphology and burial depth of intruded rock mass has been obtained. This time in the coal field using magnetic exploration work is obviously still very superficial, but sufficient to explain the magnetic exploration is good. With the cooperation of magnetic exploration, the geological tasks of delineating various intrusions that are currently difficult to solve in coalfields by electrical prospecting and seismic prospecting can be solved.