GATE GG-1 2018 Paper 1 — page 17

Questions 49–51 of 65. Imported answers require review unless explicitly marked reviewed.

The reaction muscovite + quartz = K-feldspar + sillimanite + water

Your answerChoose one option.

takes place within the greenschist facies.

takes place within the amphibolite facies.

takes place within the eclogite facies.

takes place within the granulite facies.

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Match the items listed in Group I with those in Group II.

Group I P. Diopside-tremolite-forsterite Q. Talc-phengite-kyanite R. Hornblende-cummingtonite-plagioclase S. Andalusite-cordierite-biotite

Group II

Pelite (low P, high T)

Metabasite (low P, high T)

Calc-silicate (moderate P, T)

Pelite (high P, low T)

Your answerChoose one option.

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

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

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

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

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The figure below is a schematic section showing the initial stages of development of a thrust fault (FF′) having a typical ramp and flat geometry, with the thrust sheet being transported from east to west. With respect to the synform and antiform created in Stage 2, which one of the options below is CORRECT for the next increment of movement on the fault plane?

Diagram for Geology and Geophysics question 41

Your answerChoose one option.

The synform and the antiform will both move westward.

The synform will remain in position, while the antiform will grow in amplitude.

Both synform and antiform will grow in amplitude.

The geometry will remain unchanged.

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2018 · Paper 1

Question 39

Question 40

Question 41