APSC Geology MCQs with Answers | Geology Questions for PSC Exams

61 Silt and clay deposits formed by the sediments carried in suspension by air currents is known as

1 marlite

2 novaculite

3 loess

4 lacustrine

View Answer

Answer: loess

62 Find the argillaceous rock from the following :

1 Sandstone

2 Siltstone

3 Shale

4 Grit

View Answer

Answer: Shale

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63 Find out the discordant bedding of the following :

1 Current bedding

2 Graded bedding

3 Ripple marks

4 Mud cracks

View Answer

Answer: Current bedding

64 Rounded clasts, high Si02 and Al203,high ZTR reflect

1 high maturity

2 low maturity

3 tectonic unstability

4 reducing conditions

View Answer

Answer: high maturity

65 Blastoporphyritic means

1 an inherited porphyritic fabric

2 equigranular fabric

3 a fabric that develops during metamorphism

4 post-metamorphic fabric

View Answer

Answer: an inherited porphyritic fabric

66 Hornfelsic rocks form due to metamorphism.

1 regional

2 contact

3 cataclastic

4 pneumatolytic

View Answer

Answer: contact

67 Which of the following rocks was produced by dynamothermal metamorphism?

1 Schist

2 Marble

3 Mylonite

4 Slate

View Answer

Answer: Schist

68 The general temperature of metamorphism is in between

1 400 °C to 1100 °C

2 500 °C to 1200 °C

3 100 °C to 3000 °C

4 200 °C to 800 °C

View Answer

Answer: 200 °C to 800 °C

69 Regional metamorphism occurred due to conditions.

1 heat predominant

2 directed pressure predominant

3 uniform pressure and heat predominant

4 directed pressure and heat predominant

View Answer

Answer: directed pressure and heat predominant

70 The minerals glaucophane and jadeite are suggestive of

1 high temperature-low pressure

2 high pressure-low temperature

3 high temperature-high pressure

4 low pressure-low temperature

View Answer

Answer: high pressure-low temperature

71 Find the hydro thermal deposit from the following :

1 Residual deposit

2 Placer deposit

3 Cavity-filling deposit

4 Evaporites

View Answer

Answer: Cavity-filling deposit

72 Pyrolusite is an ore of

1 manganese

2 aluminium

3 iron

4 copper

View Answer

Answer: manganese

73 The zone of oxidation in the supergene sulphide enrichment process extends

1 up to the water table

2 up to 2-5 metres above water table

3 just below water table

4 up to the soil level

View Answer

Answer: up to the water table

74 Ladder views are usually found in

1 sill

2 dyke

3 lava flows

4 volcanic pipes

View Answer

Answer: dyke

75 Which one of the following is not a magmatic concentration deposit?

1 Residual liquid deposit

2 Immiscible liquid deposit

3 Oxidized and supergene deposit

4 Pegmatitic deposit

View Answer

Answer: Oxidized and supergene deposit

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