Mineral and Engineering Geophysics

Rock Mechanics Laboratory undertakes geophysical research that involves characterization of rocks and related materials in terms of their petrophysical (e.g., density, ultrasonic velocity, magnetic susceptibility, electrical resistivity, and porosity) and mechanical properties (uniaxial strength, tensile strength, shear strength, cohesion and angle of internal friction), covering the crustal rocks of Indian Shield and Himalaya. The laboratory data are useful to seismo-tectonics studies, mining and engineering research, mineral and hydrocarbon exploration, and geophysical modelling of crust and lithosphere. A few members of this group also undertake research on planetary geosciences and impact cratering processes. NGRI undertakes important investigations with societal implications in the field of Engineering Geophysics. The projects range from geotechnical investigations at nuclear power plants to evaluate seismic hazard, to assess the seismicity of the Indian province with alluvial cover, shallow seismic investigations for exploration of Coal Bed Methane gas, consultancy on sites for waste disposal, detection of leakages in dams and large structures and determining foundations for large engineering projects. NGRI executes Heliborne Geophysical surveys for Uranium exploration studies.