Application of geophysical exploration in exploration of goaf of refractory clay minerals
In order to probe into the application method of high density electrical geophysical exploration method in refracto-ry clay minerals,geophysical exploration was carried out in the study area,and the goaf distribution and their strata lithology and structure in the depth of 30 m in the study area were figured out.The shallow layers in the research area are mainly composed of Quaternary silt,silty clay,sand(gravel),etc.,with a relatively thin thickness.Underlying are clay rocks,sand-stones,mudstones,and limestone of the Carboniferous system,while the lower part is limestone of the Ordovician system.12-line and 20-arrayal of high-density electrical profile lines were finished,with a total length of 2.966 km and1496 physi-cal points.The 56 designated goaf locations were projected onto the plan,and a geophysical exploration section was created to explain the goaf area.The goaf area has a wide impact,especially in the central and northeastern parts of the study area,with a strong degree of impact.It is speculated that the total affected area of the goaf area in the study area is about 5.4795 m2.Our research is of reference for studying goaf and the verification and analysis of reserves in the study area.
geophysical explorationhigh density electrical methodrefractory clay mineralsgoaf distributionapparent re-sistivity
国家科技期刊平台
NSTL
万方数据
维普
