地面地震层析成像和高分辨率地震联合勘探技术

COMBINING EXPLORATION TECHNIQUE OF THE GROUND SEISMIC TOMOGRAPHY AND THE HIGH-RESOLUTION SEISMIC METHOD

由于金属矿区地质构造的复杂性,地震反射方法在金属矿区的应用效果一般较差。为解决金属矿勘查中的方法技术问题,开展了地面地震层析成像和高分辨率地震联合勘探的方法技术研究。试验研究结果表明,地震层析成像技术不但可弥补反射地震资料在探测浅表层方面的不足,而且还可为反射地震资料的静校正和偏移处理提供有用的速度信息,从而提高反射地震资料的处理效果;该联合勘探技术可解决从地表至数千米深度范围内的地质构造问题。

Due to complexity of geological structures and the earth＇s surface conditions, application effects of seismic reflection method in metallic ore areas are generally not good. In order to resolve method problems for mineral explorations, a combining exploration technique of the ground seismic tomography and the high-resolution seismic method has been developed. The research results proved that the seismic tomography not only counteracts reflection seismic method＇s weaknesses in prospecting surface or shallow stratum, but also provides useful velocity information for terrain correction and migration of reflection seismic data, therefore improves processing effects of seismic reflection data. The combining exploration technique can map geological structures and layers from surface to several （even several tens） kilometers deep.