Consider following statements about Diastrophism 1 It is an endogenic geomorphic proc...........

Geography Geomorphology

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Consider following statements about Diastrophism

1. It is an endogenic geomorphic process.

2. Orogeny involves the process of uplifting and warping of large parts of the earth’s crust.

3. Epeirogeny is the process of mountain building through severe folding of long narrow belts of the earth’s crust.

Select the correct answer using the codes given below

1 and 2 only

1 only

2 only

All of the above

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Explanation:

All processes that move, elevate or build up portions of the earth’s crust come under diastrophism. They include:
(i)   orogenic processes involving mountain building through severe folding and affecting long and narrow belts of the earth’s crust;
(ii)   epeirogenic processes involving uplift or warping of large parts of the earth’s crust;
(iii)   earthquakes involving local relatively minor movements;
(iv)   plate tectonics involving horizontal movements of crustal plates.
In the process of orogeny, the crust is severely deformed into folds. Due to epeirogeny, there may be simple deformation. Orogeny is a mountain building process whereas epeirogeny is continental building process.