UPLIFTS, DISLOCATIONS, etc 
297 
In other parts of the district these uplifts have produced lines, which, being more easily 
excavated, have become the channels of streams. Many beds of streams present this appear¬ 
ance, but in most cases I have been inclined to refer the apparent phenomena to very partial 
uplifting of the strata by ice. Very many instances are doubtless due to this latter cause; 
but there are others which cannot be referred to such an influence. The following is a 
section of the south branch of the Cattaraugus, with an elevation of the strata upon either 
side : 
The disturbance is here so great, that it seems due to some more powerful agency than 
the freezing of water. Still, however, so many points present similar appearances, which 
are evidently due to the latter cause, that it is not easy to decide. 
This effect of uplifting is sometimes manifested only along the line of fracture; the strata, 
on either side, manifesting the same line of dip as if it had not occurred. The following 
illustration is from a cliff on the south branch of the Cattaraugus, one and a half miles above 
Little’s mill. The strata on either side of the line of fracture are apparently as undisturbed 
as if it had not happened. 
[Geol. 4th Dist.J 
38 
