Geology and Geophysics
GATE GG-1 format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 81–90 of 422. Imported answers require independent review unless marked reviewed.
Question 18
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The given figure shows the ray path of a P-wave propagating through the Earth. Choose the CORRECT P-phase corresponding to the ray path.
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Match the geophysical methods in Group–I with their associated physical properties in Group–II.
Group–I
P. Magnetic
Q. Gravity
R. Magnetotelluric
S. Induced Polarization
Group–II
Chargeability
Electrical conductivity
Susceptibility
Density
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The number of planes of symmetry in a tetrahedron is
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Which one of the following lineations can be observed on a foliation with an attitude 210°, 40° NW?
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Match the minerals in Group–I with the corresponding cleavage types in Group–II.
Group–I: P. Diopside; Q. Galena; R. Calcite; S. Fluorite
Group–II: 1. Cubic; 2. Octahedral; 3. Prismatic; 4. Rhombohedral
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The composition of which one of the following reservoirs closely matches with that of iron meteorites?
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Match the microstructures in Group–I with their characteristics in Group–II.
Group–I: P. Core–mantle; Q. Decussate; R. Spherule; S. Millipede
Group–II: 1. Radiating fibrous aggregate of K-feldspar with or without quartz; 2. Large strained mineral grains surrounded by fine-grained, recrystallized grains; 3. Inclusion trails in a porphyroblast curves into the matrix foliation by developing concave outward pattern; 4. Randomly oriented mineral grains dominated by crystal faces, such as in sheet silicates
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Which one among the following is the least abundant sedimentary rock in the stratigraphic record?
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Which one of the following sequences of index minerals correctly represents the order of increasing metamorphic grade during regional metamorphism of siliceous dolitic limestones?
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Which one among the following is the oldest horse genus?
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