ri02 NEW YORK STATE MUSEUM 



The average strike of the limestone over wide areas is the 

 same as that of the gneiss. Where the two rocks are seen 

 side by side, they appear together conformably or the lime- 

 stone has suffered from the compressive forces of metamor- 

 phism so considerably as to have completely lost its original 

 bedded character. The contortion has at times been so great as 

 to amount to flowing under conditions of plasticity. The accom- 

 panying effects on the gneiss resulted in the production of a 

 monoclinal structure throughout the township. It was not pos- 

 sible to establish definite folds. Examination in the field makes 

 it plain that faulting is much rarer here than elsewhere in the 

 Adirondacks. The small stream which joins Jones brook near- 

 est to its union with Minerva stream, probably owes its posi- 

 tion to a fault line, but the sawtooth structure of other regions, 

 where blocks have been commonly faulted and tilted toward 

 the east, is not found over this area. On any supposition the 

 pre-Paleozoic series of metamorphosed sediments in Minerva 

 township must be measured by many thousands of feet. 



