im not sure which mod causes this,but it seems like many do,on version 1.7.10:
instead of water,dirt is generated on ocean biomes,rivers,deep oceans and some others... and theres even some trees and hills,and some grass.
though water is still generated normally on forest lakes
here's a screenshot if its worth anything:
this is NOT an intended function of any of the mods i am using,i can assure that much.
is there any way to fix this?