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- Question 1 of 17
The Jurassic stratigraphic succession of Kutch is characterized by which one of the following?CorrectIncorrect
- 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?CorrectIncorrect
- Question 3 of 17
When did the supercontinent Pangaea begin to break up?CorrectIncorrect
- Question 4 of 17
In which of the following localities does coal deposit occur?CorrectIncorrect
- Question 5 of 17
Which one of the following planets has the highest bulk density?CorrectIncorrect
- Question 6 of 17
Mid-Oceanic ridges mark ___________ plate margins and can be traced by belts of _________focus earthquakes.CorrectIncorrect
- 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 betweenCorrectIncorrect
- 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?CorrectIncorrect
- Question 9 of 17
Cirques are formed byCorrectIncorrect
- Question 10 of 17
During which of the following geological eras did birds and mammals first appear on the Earth?CorrectIncorrect
- 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 isCorrectIncorrect
- Question 13 of 17
In electromagnetic (EM) sounding, the depth of investigation ___________ with increasing frequency.CorrectIncorrect
- Question 14 of 17
The International Gravity Formula predicts the theoretical gravity value at a given point assuming aCorrectIncorrect
- Question 15 of 17
The diurnal variation of geomagnetic elements is due to a system of electric currents flowing in theCorrectIncorrect
- 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 MagnetotelluricsCorrectIncorrect
- Question 17 of 17
In seismic refraction surveys, the critical distanceCorrectIncorrect