List of top Geology Questions asked in IIT JAM GG

On the magnetic polarity time scale, the present-day epoch/chron is called _______.
Match the lithostratigraphic groups in Column I with their corresponding formations in Column II.
Column IColumn II
P.Papaghni Group1.Kajrahat Formation
Q.Uttatur Group2.Nagri Formation
R.Siwalik Group3.Vempalle Formation
S.Semri Group4.Karai Formation
Which of the following combinations of Basin and Formation is/are CORRECT?
Which of the following sedimentary structures is/are tool marks?
The following figure shows an isobaric temperature-composition (T-X) phase diagram for the binary system A-B. If 'P' is the initial composition of liquid, the amount of liquid that remains in the system when the liquid cools from 1800 °C (point L1) to 1500 °C (point L2) is _____%. (In integer)
figure shows an isobaric temperature-composition (T-X) phase diagram for the binary system A-B
If the intercepts of crystallographic axes are 0.5a : 1b : 0.75c on a crystallographic plane {h k l}, the value of ‘l’ is _________. (In integer)
Which one among the following mineral pairs crystallise early during the cooling of a basaltic melt?
Which one of the following symmetry elements is an INCORRECT representation of rotoinversion operation?
Which of the following is/are NOT copper-bearing mineral(s)?
Which of the following optical properties CORRECTLY indentify(ies) the apatite {0001} section?
Which one of the following minerals is NOT a framework silicate?
If an iron ore body contains 50% hematite (Fe2O3) and 50% magnetite (Fe3O4), then the grade of the iron ore body is _____%. (Round off to two decimal places) (Use atomic weight of Fe = 55.85 amu and O = 16 amu).
The transition from spinel to perovskite structure occurs between _____.
Hollandite is an ore mineral of which one of the following elements?
Match the ore deposits in Column I with their corresponding ores in Column II.
Column IColumn II
P.Malanjkhand1.Uranium ore
Q.Tummalapalle2.Gold ore
R.Bhukia3.Tin ore
S.Tosham4.Copper ore
The amplitude recorded at a station for a magnitude 5 earthquake is 𝑥. If another earthquake recorded at the same station has an amplitude of 15𝑥, then the magnitude of this earthquake is ________. (Round off to two decimal places)
Which one of the following options is the CORRECT sequence of seismic waves in order of arrival time recorded on a seismogram after an earthquake?
Which one of the following relationships between the topographic contour value (t) and the stratum contour value (x) of a bed must be TRUE for an outcrop of the bed to occur on the topographic surface?
Which one of the following was emplaced in the Neoproterozoic time?
Which one of the following is NOT a sediment-gravity flow?
Which of the following is/are used to estimate the strength of a rock mass?
Which one of the following textures shows cuneiform-shape intergrowth between alkali feldspar and quartz?
A pelitic rock consisting of cordierite + garnet + K-feldspar + sillimanite belongs to which one of the following metamorphic facies?
A one-meter deep and sheet-like waterflow on a sandy beach developed antidunes. The minimum velocity of the waterflow was _______m/s. (Round off to two decimal places) (Use g = 10 m/s²)
A plutonic igneous rock is composed of 50% orthopyroxene, 45% olivine and 5% clinopyroxene. What is the appropriate name of the rock according to the IUGS classification?