1887

Abstract

Summary

The prime idea of the present study is to attract new data for the magnetic survey and soil magnetism application in oil and gas prospecting. We need to find the genetic relation of the anomalous magnetic field and hydrocarbon accumulation at the areas of compound geological structures. We performed the magnetic measurements in the Transcarpathian depression of Ukraine. We identified significant magnetic anomalies caused by the volcanic Vyhorlat-Huta range. This situation greatly complicates the analysis of the structure of the magnetic field. The observed anomalies assume the effect of the hydrocarbon. Hydrocarbons change the structure of the anomalous magnetic field. We registered the negative magnetic anomalies with a width of about 1000–1500 m and amplitude of more than −10 nT. We infer the need of information of the block structure reflection’s in the region and the influence of the volcanic-sedimentary rocks. The soil of the Transcarpathian depression is weakly magnetic and contain large amount of the paramagnetic material. We performed several magnetic mineralogical analyzes to define the nature of the soil magnetic signal. The primary magnetic mineral is magnetite. Moreover, we observed the admixtures of the high coercetivity minerals, probably pedogenic hematite or goethite.

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/content/papers/10.3997/2214-4609.201801759
2018-05-14
2024-04-18
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