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Question 1 of 17
The Jurassic stratigraphic succession of Kutch is characterized by which one of the following?Correct
Question 2 of 17
Which one of the following mineral constituents exhibits strong absorption in the UV-blue band of the EM spectrum due to charge transfer effect leading to colouration?Correct
Question 3 of 17
When did the supercontinent Pangaea begin to break up?Correct
Question 4 of 17
In which of the following localities does coal deposit occur?Correct
Question 5 of 17
Which one of the following planets has the highest bulk density?Correct
Question 6 of 17
Mid-Oceanic ridges mark ___________ plate margins and can be traced by belts of _________focus earthquakes.Correct
Question 7 of 17
From the surface to the Earth’s interior, the velocity of P-wave decreases and the material density increases at the boundary betweenCorrect
Question 8 of 17
The following gamma ray (GR) log data are recorded in a borehole:
GR log value against a formation = 30 API units,
Maximum GR log value = 45 API units,
Minimum GR log value = 20 API units.
What is the fraction of shale in the formation?Correct
Question 9 of 17
Cirques are formed byCorrect
Question 10 of 17
During which of the following geological eras did birds and mammals first appear on the Earth?Correct
Question 11 of 17
Select the copper ore minerals from the following:
Question 12 of 17
The reflection coefficient at the interface between two layers of resistivities 9 Ωm and 1 Ωm respectively isCorrect
Question 13 of 17
In electromagnetic (EM) sounding, the depth of investigation ___________ with increasing frequency.Correct
Question 14 of 17
The International Gravity Formula predicts the theoretical gravity value at a given point assuming aCorrect
Question 15 of 17
The diurnal variation of geomagnetic elements is due to a system of electric currents flowing in theCorrect
Question 16 of 17
Match the mineral deposits (listed in Group I) with the most appropriate geophysical exploration methods (listed in Group II)
Group I Group II
(P) Mineralized conductive veins
(Q) Disseminated sulphides
(R) Massive barytes
(S) Kimberlite pipes
(3) Induced Polarization
(4) Resistivity profiling
(5) Low frequency MagnetotelluricsCorrect
Question 17 of 17
In seismic refraction surveys, the critical distanceCorrect