Why do fold mountains have enormous thickness of sedimentary rocks ?

+1 vote
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asked Dec 29, 2016 in Indian and World Geography by PRASHANT TYAGI (4,305 points)

a.) due to deposition of sediments in a valley for millions of years

b.) due to accumulation of sediments in a geosyncline 

c.) the plains were folded into mountains 

d.) the sediments were folded into recumbent and nappe folds 

5 Answers

+1 vote
answered Dec 29, 2016 by Pra Na (1,740 points)
It's B ...
+2 votes
answered Dec 29, 2016 by naren0324 (110 points)

b) due to accumulation of sediments in a geosyncline 

+1 vote
answered Jan 31 by Phurden Lepcha (345 points)
option B.
0 votes
answered Feb 9 by abhisheksinghitbhu (110 points)
It should be B
0 votes
answered Apr 11 by Ankita1610 (295 points)
Accumulation in geosyncline
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