25. A confined aquifer with a uniform saturated thickness of 10 m has hydraulic conductivity of $10^{-2}$ cm/s. Considering a steady flow, the transmissivity of the aquifer in m2/day is ___________…
1. The hydraulic conductivity measure of how easily water moves through the porous media. It depends on the permeability of the material, the degree of saturation, and the density and viscosity of th…
17. A cylindrical sample of granite (diameter = 54.7 mm; length = 137 mm) shows a linear relationship between axial stress and axial strain under uniaxial compression up to the peak stress level at …
18. The given figure shows the ray path of a P – wave propagating through the Earth. Choose the CORRECT P – phase corresponding to the ray path. A) PcP B) PKP C) PPP D) PmP Answer: B Fo…
17. The heat production $(Q_r)$ of a granitic rock due to the decay of the radioactive elements U, Th, and K having concentrations C u , C Th , and C K , respectively, is given by the expression $Q_r…
1. Gravitational acceleration (gravity) is commonly expressed in units of milligals (mGal). $1 Gal=1cm/s^2=0.01 m/s^2$ $1mGal=10^{-3}Gal=10^{-3} cm/s^2=10^{-5} m/s^2$ References: 1. Fundamentals …
1. James Hutton and Charles Lyell propounded the ‘Uniformitarianism’ or ‘actualism’ (the present is the key to the past). Reference: Global Tectonics by Philip Kearey, Keith A. Klepeis, and Frederic…
96. A Thick Sedimentary formation, in Which the seismic wave Velocity V Increases with depth Z from $V_0$ at the surface to $V_1$ at the bottom according to the relation $V_1=V_0e^{\lambda z}$ . th…
24. A seismic reflection survey is carried out over a 1500 m thick horizontal layer with a P-wave velocity of 2000 m/s. The travel time of a reflected wave at a surface detector placed 1000m from …
22. Skin Depth in homogeneous media of resistivity $\rho_{1}$ and $\rho_{2}$ are 100 m and 200 m respectively, at 1000Hz frequency. The ratio $\frac{\rho_{1}}{\rho_{2}}$ will be __________. (Tha…
21. A Mid-oceanic-Ridge has symmetric magnetic anomalies about the ridge axis as shown below. Using the information given in the figure, the average relative velocity between the Plates A and b is …