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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Riya Loach posted an Question
August 12, 2020 • 01:13 am
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30 points
30 points
- IIT JAM
- Geology (GG)
Can u explain this
2 Answer(s)
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Sajan sarthak
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This paragraph suggesting that law of uniformirtarian means all the geological process we see is uniformly regulated and present is the key to past means from today's example and we can trace back to past. Also it is saying there are certain processes was in past which have no present example or analogue. Figures are telling when sediments are deposited it is deposited layer after another and older at bottom and younger at top. if we see any dipping beds then undip them and can know the younger and older else the dipping direction will be the younger direction. Lateral continuity means if bed us truncated then assume it was extended on both sides.
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Rahul kumar![best-answer]()
Concept of uniformitarianism suggests that catastrophic processes were not responsible for the landforms that existed on the Earth's surface. This idea was diametrically opposed to the ideas of that time period which were based on a biblical interpretation of the history of the Earth. Instead, the theory of uniformitarianism suggested that the landscape developed over long periods of time through a variety of slow geologic and geomorphic processes. And those processes are still going on in present. Some environmental conditions prevailed in the past have no modern analogues because Earth's conditions have changed so much from creation. Law of superposition- Younger beds will be at top and older beds will be at bottom of stratigraphic succession Law of original horizontality- When deposited, all the beds were horizontal. The beds are deformed with time due to tectonic processes. Law of lateral continuity- Beds are laterally continued upto a large distance (generally basinal extent). There might be discontinuity at places but beds can be traced after discontinuity even.