High resolution seismic reflection studies in Godavari coal fields: Mapping of coal seams and associated structural features

摘要

High Resolution Seismic Reflection technique is one of the most suitable geophysical methods for mapping the shallow coal seams and associated structural features, which will provide essential input for adopting proper methodology for exploitation and mine planning of coal reserves. In the present study, depth of the coal horizons were determined and the geometry of the faults in Ramagundam area, Gondwana basin is illustrated which is located at the junction of the Bastar and Dharwar cratons. The High Resolution Seismic Surveys conducted along eight parallel profiles with coverage of surface area one km(2) in the study region. The study reveals (1) seismic sections up to 1000m depth with thick, gently dipping Barakar Formation, (2) thick coal horizons at a depth range of 200 to 500m, and (3) NW-SE striking and gently dipping normal faults are observed in coal horizons. The obtained results will provide better knowledge of the coal reserves in the study area.