List of top Geophysics Questions asked in GATE Geology and Geophysics

Consider a steady-state heat conduction equation for the Earth’s crust where $ A $ is the heat source and $ k $ is the thermal conductivity. Given the boundary conditions: $ T = 0 $ at the surface and $ Q $ is the heat flux at the surface, Which one of the following options would be the temperature $ T $ at depth $ z $?

In the schematic, line P shows a 1-D geothermal profile. If the heat flow at the base of the mantle increases, which line will reflect the new geothermal profile?

Assume heat producing elements are uniformly distributed within a 16 km thick layer in the crust in a heat flow province. Given that the surface heat flow and reduced heat flow are 54 mW/m$^2$ and 22 mW/m$^2$, respectively, the radiogenic heat production in the given crustal layer in $\mu$W/m$^3$ is ________ (in integer).