11. Underground water emerging on the surface in the form of seepages and springs is found to form loose superficial deposits of silica or calcium carbonates. Such deposits are known as
12. The top most horizon of the tertiary succession in Assam is known as
13. The horizontal component of the apparent displacement of a bed, measured along the direction of dip of the fault is
14. It's a mere openings of any shape or size which act as avenues for the magma to rise and spread upon earth's surface in the form of lava.
15. Rocks that are formed by the cooling of molten material (called magma) at or relatively near the earth surface is called
16. Dip fault also called
17. It is the junction plane of one bed of rock with another
18. It is a buff coloured deposit made up of angular fragments of unaltered mineral grains and is characteristically unstratified. The thickness of such deposit may vary from few inches to hundreds of feet
19. Low temperature carbonisation plants are at
20. It is another method of washing which separate good quality coal from its impurities through a simple process of particle stratification?
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