综合物探在潮水盆地北缘区找煤中的应用

Application of integrated geophysical prospecting in searching for coal in northern Chaoshui basin

本次勘查区位于潮水盆地北缘东段,属戈壁、干旱半沙漠地貌,为了更好的查明区内的煤系地层赋存情况及分布范围、地质构造情况、以及基底埋深深度及起伏形态等问题,进行了二维地震勘探与可控源音频大地电磁法(CSAMT法)相结合的综合勘探。两种方法综合分析、相互印证、相互参考,克服了单一物探方法的局限性,实现了优势互补,使解释结果更准确可靠。

The exploration area is located in the eastern of northern Chaoshui basin. The comprehensive explorations of twodimensional seismic exploration and controlled source audio magnetotelluric method（ CSAMT method） were used in the exploration area. CSAMT method can solve the problems of overburden thickness,basement depth and substrate undulating morphology. 2D seismic exploration can identify the occurrence of coal-bearing strata,burial depth,geological structures and undulating forms. The comprehensive exploration methods can overcome the limitations of a single exploration method and make the interpretation of exploration results more accurate and reliable.