Q. Two coeval primary aqueous biphase fluid inclusions, X (liquid-rich) and Y (vapour-rich), occur in the same grain of the host mineral. Which one of the following situations most likely indicates boiling of the fluid? A. X homogenizes to liquid and Y homogenizes to vapour at different temperatures. B. Both homogenize to liquid at the […]
Q. Assertion (a): High-temperature, low-pressure metamorphism occurs on the over-riding plate near convergent plate margins. Reason (r): Partial melting in the mantle wedge generates magmas that rise to form the arc. A. (a) is true but (r) is false. B. (a) is false but (r) is true. C. Both (a) and (r) are true and
Q. Which one of the following is the CORRECT chronological sequence for Iron formations? A. Algoma type > Superior type > Rapitan type > Minette type B. Superior type > Algoma type > Rapitan type > Minette type C. Rapitan type > Minette type > Algoma type > Superior type D. Algoma type > Minette
Which one of the following is the CORRECT chronological sequence for Iron formations? Read More »
Q. The figure below is a schematic section showing the initial stages of development of a thrust fault (FF’) having a typical ramp and flat geometry, with the thrust sheet being transported from east to west. With respect to the synform and antiform created in Stage 2, which one of the options below is CORRECT
Q. The reaction muscovite + quartz = K-feldspar + sillimanite + water A. takes place within the greenschist facies. B. takes place within the amphibolite facies. C. takes place within the eclogite facies. D. takes place within the granulite facies. Ans: takes place within the amphibolite facies.
The reaction muscovite + quartz = K-feldspar + sillimanite + water Read More »
Q. In the hypothetical isobaric ternary liquidus projection diagram given below, solid phases A, B, C, D and E exist in equilibrium with liquid. The reaction taking place at the isobaric invariant point W is A. Liquid (at W) = B + D + E B. Liquid (at W) = A + B + D
Q. Which one of the following is an image rectification technique? A. Histogram equalization B. Density slicing C. Histogram normalization D. Rubbersheeting Ans: Rubbersheeting
Which one of the following is an image rectification technique? Read More »
Q. Which one of the following stratigraphic successions is in the CORRECT chronological order (from older to younger)? A. Rajmahal, Dubrajpur, Barakar B. Fenestella Shale, Muth Quartzite, Syringothyris Limestone C. Bagh Bed, Lameta Formation, Deccan Traps D. Singhbhum Granite, Kolhan Group, Older Metamorphic Gneiss Ans: Bagh Bed, Lameta Formation, Deccan Traps
Q. Which one of the following cladograms shows the CORRECT interrelationships among the major groups of vertebrates? (A) Cladogram I (B) Cladogram II (C) Cladogram III (D) Cladogram IV Ans: Cladogram I
Which one of the following cladograms shows the CORRECT interrelationships among the Read More »
Q. Based on the hypothetical litholog given below that shows a continuous succession of sedimentary rocks, which one of the following statements is CORRECT? A. The rocks range from Cambrian to Cretaceous and show change in depositional environment from marine to continental. B. The rocks range from Cambrian to Triassic and show change in depositional
Based on the hypothetical litholog given below that shows a continuous succession of Read More »
