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河南开展煤田地球物理勘探(以下称煤田物探)工作二十多年来,积累了一定的经验。现从其实践资料出发,对其方法的应用作一初步分析。一、物探工作条件(一)煤田地质情况1.地层:河南煤田普遍存在寒武系、奥陶系、石炭系、二迭系、三迭系、第三、四系地层,主要含煤地层为石炭二迭系,次为侏罗系和第三系,石炭二迭系地层普遍分布在予北、予西和予东地区。属于华北沉积型相。石炭二迭系地层之下伏地层普遍为寒武奥陶系,中石炭系本溪统的铝土岩广泛沉积,上复地层有三迭系和第三、四系地层,石炭二迭系地层是河南煤田物探工作主要对象。
Henan has accumulated some experience over the past 20 years in the field of geophysical exploration of coal fields (hereinafter referred to as coalfield geophysics). Starting from its practical information, the application of its method to make a preliminary analysis. I. Geophysical Conditions 1. Coalfield Geology 1. Strata: The Cambrian, Ordovician, Carboniferous, Permian, Triassic, Tertiary and Quaternary formations are common in Henan coalfield. The main coal-bearing formations are Permian Carboniferous, followed by the Jurassic and Tertiary, Permian Permian strata generally distributed in the North, to the West and to the East. Belongs to the North China sedimentary facies. The underlying strata of the Carboniferous Permian strata are generally Cambrian Ordovician, extensively bauxite of the Middle Carboniferous Benxi Formation, Triassic strata and third and fourth strata in the upper strata, and Carboniferous Permian strata in Henan The main target of coalfield geophysical work.