GATE (Graduate Aptitude Test in Engineering) Geology & Geophysics: Questions 130 - 133 of 158

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Question 130

Appeared in Year: 2014

Question

MCQ▾

From the given Eh-pH diagram, which one of the following pairs can be inferred to be a disequilibrium assemblage? (Carry two marks each)

From the Given Eh-PH Diagram

Choices

Choice (4)Response

a.

Magnetite-pyrite

b.

Pyrite-siderite

c.

Hematite-pyrite

d.

Hematite-magnetite

Question 131

Appeared in Year: 2014

Question

Match List-Ⅰ List-Ⅱ▾

Match the mineral deposits (listed in Group I) with the most appropriate geophysical exploration method (listed in Group II) . (Carry one mark each)

List-Ⅰ (Group I)List-Ⅱ (Group II)
(A)

Mineralized conductive veins

(i)

Gravity

(B)

Disseminated sulphides

(ii)

Resistivity profiling

(C)

Kimberlite pipes

(iii)

Magnetic

(D)

Massive barytes

(iv)

Induced polarization

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iv)
  • (i)
  • (ii)
  • (iii)

b.

  • (iv)
  • (iii)
  • (ii)
  • (i)

c.

  • (ii)
  • (iv)
  • (iii)
  • (i)

d.

  • (ii)
  • (i)
  • (iv)
  • (iii)

Question 132

Determinative Mineralogy of Common Rock Forming Minerals

Appeared in Year: 2013

Question

MCQ▾

The most abundant mineral in the Earth՚s crust is

Choices

Choice (4)Response

a.

Garnet

b.

K-feldspar

c.

Biotite

d.

Quartz

Question 133

Seismic and Radiometric Methods of Prospecting for Oil

Appeared in Year: 2014

Question

MCQ▾

In seismic refraction surveys, the critical distance________. (Carry one mark each)

Choices

Choice (4)Response

a.

Is always equal to the crossover distance

b.

Is always less than the crossover distance?

c.

Cannot be compared with the crossover distance.

d.

Is always more than crossover distance

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