Geology and Geophysics
GATE GG-1 format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 401–410 of 422. Imported answers require independent review unless marked reviewed.
Question 30
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The empirical probability distribution of gold (Au) grades shows a unimodal distribution with mode = 2 g/t, median = 3 g/t, and mean = 5 g/t. This probability distribution is
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The Bulk Silicate Earth (BSE) is best approximated by the average
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Which one of the following is the stable mineral assemblage in metamorphism of a rock with pelitic bulk composition under granulite facies?
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The given P–T diagram shows four distinct metamorphic paths designated as 1, 2, 3 and 4. Which one of these P–T paths represents crustal thickening in a collisional tectonic setting?
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The diagram below shows the interference figure of a mineral. The mineral is
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Match the following classical ore deposits (Group-I) with their associated ore minerals (Group-II)
Group-I
P. Sudbury type deposit
Q. Mississippi valley type deposit
R. Climax type deposit
S. IOCG type deposit
Group-II
Molybdenite
Uraninite and chalcopyrite
Pentlandite
Psilomelane
Sphalerite and Galena
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Which one of the following microfossils is commonly used in biostratigraphic correlation of Palaeozoic marine strata?
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Given below are pairs of “living fossils”. Which one of the following is a brachiopod-mollusc pair?
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Match the sedimentary rocks and their features listed in Group I with depositional environments listed in Group II.
Group I
(P) Sandstone with herring-bone cross bedding
(Q) Chalk with coccolith
(R) Well sorted arenite with large cross bedding (5-10 m thick)
(S) Poorly sorted sediments with faceted and striated pebbles
Group II
(1) Eolian
(2) Glacial
(3) Sabkha
(4) Tidal
(5) Pelagic
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Arrange the following stratigraphic formations sequentially from older to younger.
(P) Jodhpur Sandstone
(Q) Cambay Shale
(R) Kajrahat Limestone
(S) Tipam Sandstone
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