Geology and Geophysics
GATE GG-1 branch:gg-1 PYQs
Build your understanding with focused practice from past exam papers.
Questions 221–230 of 650. Imported answers require independent review unless marked reviewed.
Question 26
Open questionGGNAT2 marksNeeds review
For the given figure, considering Pratt’s model of isostatic compensation at the crust mantle boundary, the crustal density (ρ₁) that explains 1.5 km deep lake is ____________ kg/m³. (Consider density of water ρw = 1000 kg/m³) [round off to 2 decimal places]
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Which one of the following mineral pair shows solid solubility through coupled substitution of elements?
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The behavior of trace elements in magmatic systems follows
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Choose the CORECT statement regarding crystallization of a single feldspar of composition Or₅₀Ab₅₀ in the Albite-Orthoclase system.
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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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In which one of the given mass extinction events, global cooling that resulted in glaciation and lowering of sea level, is considered as major cause of extinction for more than 50% of marine fauna?
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Processes of fossilization affecting an organism from its death to burial under sediments come under the study of
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The dip and dip direction of the lee side of a straight crested ripple on modern sediments are found to be 15° and N10°W, respectively. Considering unidirectional water movement, the flow direction is towards
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Rhodocrosite in hand specimen is most likely to be confused with certain varieties of
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Which of the following is NOT an essential property of a mineral?
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