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Geology
List of top Geology Questions
During glacier retreat following the last Ice Age, Scandinavia experienced isostatic rebound. Which of the following resulted due to this rebound?
IIT JAM GG - 2026
IIT JAM GG
Geology
Geomorphology
Which of the following processes is/are responsible for the alternate bands of magnetic polarity observed in seafloor basalts?
IIT JAM GG - 2026
IIT JAM GG
Geology
Geophysics
The Earth's gravitational acceleration is higher at the poles compared to that at the equator due to
IIT JAM GG - 2026
IIT JAM GG
Geology
Geophysics
Natural accumulation of hydrocarbons are expected to occur
IIT JAM GG - 2026
IIT JAM GG
Geology
Applied Geology
Which one of the following mineral associations is diagnostic of the highly-oxidized zone of a weathered primary base metal vein?
IIT JAM GG - 2026
IIT JAM GG
Geology
Mineralogy
Match the features in Column 1 to the most appropriate description in Column 2.
IIT JAM GG - 2026
IIT JAM GG
Geology
Stratigraphy
Choose the correct statement(s) related to different aspects of volcanism.
IIT JAM GG - 2026
IIT JAM GG
Geology
Petrology
The figure depicts stability fields of minerals P and Q. Which one of the following statements is INCORRECT?
IIT JAM GG - 2026
IIT JAM GG
Geology
Petrology
Match the metal associations in Column 1 to corresponding hosts in Column 2.
IIT JAM GG - 2026
IIT JAM GG
Geology
Economic Geology
The figure shows chemogenic mineral projections for Facies P and Facies Q. Which one of the following reactions best represents change from Facies P to Facies Q?
IIT JAM GG - 2026
IIT JAM GG
Geology
Metamorphic Petrology
Which one of the following reasons best explains the occurrence of large number of earthquakes at the active plate boundaries compared to the plate interiors?
IIT JAM GG - 2026
IIT JAM GG
Geology
Seismology
The schematic shows a geological cross-section of a faulted region of sedimentary rocks (beds P to U). Assuming continuous sedimentation, select the beds that record the earliest activation and the latest reactivation of the fault.
IIT JAM GG - 2026
IIT JAM GG
Geology
Structural Geology
In a single layer of an anticlinal, the dip isogons converge towards the inner surface (core). Which one of the following statements is correct for the curvature of the inner surface of this folded layer?
IIT JAM GG - 2026
IIT JAM GG
Geology
Structural Geology
If P, Q, R, and S refer to Rainfall induced landslide, Bolide impact, Milankovitch cycle, and Supercontinent cycle, respectively, then which one of the following correctly represents the decreasing order of their duration?
IIT JAM GG - 2026
IIT JAM GG
Geology
Geological Time Scale
In an arid environment, winds of similar intensity blow in nearly opposite directions in alternate seasons. Which dune type is most likely to form in such an environment?
IIT JAM GG - 2026
IIT JAM GG
Geology
Geomorphology
Which one of the following features is used to define the K-Pg boundary globally?
IIT JAM GG - 2026
IIT JAM GG
Geology
Stratigraphy
Match the minerals in Column 1 to their characteristic optical properties in Column 2.
IIT JAM GG - 2026
IIT JAM GG
Geology
Mineralogy
Match the plant fossils in Column 1 to the corresponding geological ages in Column 2.
IIT JAM GG - 2026
IIT JAM GG
Geology
Paleontology
Match the magma series in Column 1 to the geological settings in Column 2.
IIT JAM GG - 2026
IIT JAM GG
Geology
Petrology
The S wave velocity \( V_s \) is given by \( V_s = \sqrt{\mu / \rho} \), where \( \mu \) is shear modulus and \( \rho \) is density of the medium. \( V_s \) is lower in mantle plumes than in the ambient mantle because of
IIT JAM GG - 2026
IIT JAM GG
Geology
Geophysics
Which one of the following environments best characterizes the natural habitat of boring bivalves, green algae, and herbivorous snails?
IIT JAM GG - 2026
IIT JAM GG
Geology
Marine Ecology
A halide with octahedral cleavage can scratch calcite and can be scratched by quartz. Identify the halide.
IIT JAM GG - 2026
IIT JAM GG
Geology
Mineralogy
Tsunamis are frequently caused by earthquakes at
IIT JAM GG - 2026
IIT JAM GG
Geology
Plate tectonics
In the \(^{87}Rb-^{87}Sr\) isotopic systematics applied to terrestrial rocks, the slope of the isochron \( (e^{\lambda t} - 1) \) can be approximated as \( \lambda t \), where \( \lambda \) is the decay constant and \( t \) is time. Choose the correct option that justifies this approximation.
IIT JAM GG - 2026
IIT JAM GG
Geology
Geochronology
Choose the correct statement about Moho.
IIT JAM GG - 2026
IIT JAM GG
Geology
Geophysics
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