GATE 2017-2018 :: GATE Geology and Geophysics
- A potassic ultrabasic hybrid igneous rock containing macrocrysts of olivine, Cr-rich diopside, phlogopite and pyrope in a groundmass of serpentine, carbonate and perovskite can be named as
- Herringbone structure is generally formed in which of the following environments?
- In a typical coal mine area affected by acid mine drainage, which one of the following acids will be dominant?
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Match the items in Group I with those in Group II.Group I Group IIP. Theca 1. TrilobiteQ. Midrib 2. BrachiopodR. Deltidium 3. GlossopterisS. Pygidium 4. Graptolite5. Diatoms
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Arrange the following formations sequentially from older to younger: P. Sargur SchistQ. Kajrahat LimestoneR. Cuddalore SandstoneS. Umia Ammonite Bed
- Which of the following statements is true?
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Match the items in Group I with those in Group II.Group I Group IIP. Churching 1. Concrete gravity damQ. Curtain grouting 2. TunnellingR. Piping 3. CementS. Pozzolan 4. Earth dam
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A horizontally bedded sandstone outcrop exhibits planar cross-beds at a number of places. The dip directions of the foresets of cross-beds at these locations are: N350°, N17°, N355°, N355°, N15°, N360°, N350°, N13°, N350°, N355°. Find the mean palaeocurrent direction.
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Salinity of three different fluid inclusions in H2O-NaCl system is to be determined by "heating“ freezing experiments. The phase proportions of inclusions at room temperature are shown below:
The salinity can be determined by -
Study the map below showing elevation of selected locations and outcrops of sedimentary beds.
Which of the following statements is correct?
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