Effect of Different Physical Parameters on Roundness of Clastics

Roundness of clastics is often correlated with other physical parameters. In such correlation the effects of various other factors are to be taken into account. Point bar samples from River Tista were studied to show such effects in roundness-size, roundness-distance and roundness-sphericity correlation. It is found that roundness (i) decreases with decrease of size, (ii) increases with more transportation, (iii) increases with increase of sphericity for granitic clasts and (iv) decreases with increase of sphericity for schists.