Geology and Geophysics
GATE GG-1 topic:metamorphic-petrology PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–20 of 29. Imported answers require independent review unless marked reviewed.
Question 12
Open questionGGMCQ1 markNeeds review
During contact metamorphism, with increasing temperature,
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Open questionGGMCQ1 markNeeds review
Given ΔVᵣ and ΔSᵣ are the volume and entropy of reaction, respectively, the most suitable conditions for the reaction to be used as a geothermometer are
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 58
Open questionGGMSQ2 marksNeeds review
Which of the following textures suggest(s) post-kinematic growth of the mentioned mineral?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 36
Open questionGGMSQ1 markNeeds review
The silicate mineral(s) that commonly occur(s) in regionally metamorphosed siliceous dolomitic limestone is/are
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 47
Open questionGGMCQ2 marksNeeds review
Identify the common metamorphic minerals labelled X and Y in the ACF diagram.
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Open questionGGMCQ2 marksNeeds review
Which one of the following schematic P-T paths is characteristic for a rock metamorphosed in a subduction zone?
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Open questionGGNAT2 marksNeeds review
The following reaction occurs at 1 bar and 823 K.
Grossular + Quartz = Anorthite + 2 Wollastonite
Mineral | Entropy (S¹, 823) kJ K⁻¹ | Volume (V¹, 823) J bar⁻¹ |
|---|---|---|
Grossular | 0.255 | 12.535 |
Quartz | 0.042 | 2.269 |
Anorthite | 0.200 | 10.079 |
Wollastonite | 0.082 | 3.993 |
Using the above molar thermodynamic data, the calculated slope of the above reaction is _______ bar K⁻¹. [round off to 2 decimal places]
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Open questionGG - G1MCQ2 marksNeeds review
The following reaction takes place in the amphibole grade of metamorphism of pelitic rocks:
kyanite + chlorite ⇔ staurolite + quartz + H₂O
Which of the following is a CORRECT statement on this reaction?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 11
Open questionGL-1MCQ2 marksNeeds review
In the metamorphic reaction Quartz + Muscovite = X + Sillimanite + Water, ‘X’ represents
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Open questionGL-1MCQ2 marksNeeds review
The talc-kyanite assemblage can stabilize in
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