Plate Tectonics - Common Section - Geology & Geophysics Previous Year Questions

1

2008 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2008

In the plate tectonic theory, the “ring of fire” around the Pacific ocean is related to

A

convergent plate boundary

B

divergent plate boundary

C

hot spots

D

transform fault

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2

2008 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2008

The geophysical method that provided a convincing evidence of sea floor spreading is

A

gravity

B

magnetic

C

electric

D

seismic

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3

2009 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2009

Which of the following is located closest to the Ninety-East Ridge?

A

Bombay High

B

Lakshadweep Islands

C

Andaman and Nicobar Islands

D

Maldives

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4

2009 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2009

The boundary between the Indian and Eurasian plates is the

A

Main Central Thrust

B

Main Boundary Thrust

C

South Tibetan Detachment Zone

D

Indus-Tsangpo Suture Zone

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5

2009 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2009

In which of the following islands is the Mid-oceanic ridge exposed above sea-level ?

A

Japan

B

Seychelles

C

Hawaii

D

Iceland

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6

2009 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2009

Which type of sedimentary basin is formed close to continent-continent collisional settings ?

A

Fore-arc basin

B

Peripheral foreland basin

C

Back-arc basin

D

Retro-arc foreland basin

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7

2010 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2010

India’s northward drift from Gondwanaland is believed to have started approximately (in million years ago, Ma)

A

50 Ma

B

150 Ma

C

300 Ma

D

400 Ma

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8

2010 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2010

What rock would you expect to find at the base of a typical oceanic plate?

A

Basalt

B

Diorite

C

Gabbro

D

Peridotite

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9

2010 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2010

The age of the oldest rocks in present-day ocean basins is

A

Devonian

B

Jurassic

C

Eocene

D

Permian

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10

2012 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2012

When did the supercontinent Pangaea begin to break up?

A

Cenozoic

B

Mesozoic

C

Palaeozoic

D

Proterozoic

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11

2013 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2013

Which one of the following is the correct statement?

A

Accretionary wedge is part of the foreland basin

B

Spreading ridge is a major zone of metamorphism

C

Dehydration of subducting slab induces mantle melting

D

Back arc basin represent a convergent regime

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12

2013 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2013

An active trench is present in the vicinity of

A

Andaman & Nicobar Islands

B

Gulf of Cambay

C

Lakshadweep

D

Krishna-Godavari delta

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13

2014 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2014

Mid-Oceanic ridges mark __________ plate margins and can be traced by belts of __________ focus earthquakes.

A

constructive, shallow

B

destructive, shallow

C

constructive, deep

D

destructive, deep

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14

2014 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2014

The correct chronological order (older to younger) of the following volcanic events is

A

P, Q, R, S

B

S, R, Q, P

C

S, R, P, Q

D

S, Q, R, P

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15

2015 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2015

The maximum velocity of the Indian Plate is observed in

A

Maldives

B

Bangalore

C

Delhi

D

Srinagar

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16

2016 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2016

The following schematic diagram is a plan view of three oceanic plates forming a stable triple junction on a flat earth. Plate A subducts below Plate C normal to the plate boundary, while the contact between Plates A and B is a transform fault, as indicated. The boundary between Plates B and C is a ______.

A

mid-oceanic ridge

B

subduction zone

C

sinistral transform fault

D

dextral transform fault

Check answer

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17

2016 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2016

In Gondwanaland reconstructions, much of the present west coast of India is placed adjacent to ______.

A

South America

B

Madagascar

C

Antarctica

D

Australia

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18

2022 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2022

Which of the following is/are the driving force(s) behind plate motion?

A

Slab-Pull

B

Ridge-Push

C

Mantle Convection

D

Advection

Check answer

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19

2022 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2022

Match the following tectonic settings in Group-I with the corresponding examples in Group-II.

Group-I
P  Rift Basin
Q  Passive Margin
R  Subducting Ocean
S  Collision

Group-II
1  Pacific Ocean
2  Gulf of Suez
3  West coast of India
4  Mediterranean Sea

A

P-2; Q-3; R-1; S-4

B

P-3; Q-2; R-4; S-1

C

P-2; Q-1; R-3; S-4

D

P-4; Q-3; R-1; S-2

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20

2022 · Geology & Geophysics · Common Section · Plate Tectonics

Geology & Geophysics (GG) 2022

An oceanic plate formed at a mid-oceanic ridge 27 million years ago. The plate has been moving with a uniform half-spreading rate of 4 cm/year ever since its formation. The current distance between the edge of this plate and the centre of the ridge is __________ km. [round off to 1 decimal place]

Check answer

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