NEW YOBS st a ir. MUSEUM 



The character of tl mentioned in the county descriptions. 



These limestones are equivalent to the Stockbridge, and repre- 

 • i Acadian-Trenton periods. 



A belt of Calciferoua limestone extends from Saratoga west- 

 ward through Montgomery, Fulton and Herkimer countii 



With the exception of the outcrops in tlie vicinity of Glens 

 Falls the rock is usually very silicious and is known as sandrock. 



In Eerkimer, Fulton, Saratoga and Montgomery counties this 

 formation underlies a considerable area and often forms cliffs 

 along the rivers and creeks. Its normal character is fairly con- 

 stant, viz a light bluish gray, fine grained, massively bedded 

 Bandy limestone. The weathered surfaces are generally a dirty 

 buff. The following localities are noted by N". II. Darton as 

 affording good exposures. 1 



>ut Middleville, Tittle Falls and northwestward along the 

 fault scarp, on East Canada creek, about St Jolmsville, along 

 the Mohawk from Oanajoharie to the ' Xoses,' the quarries at 

 Tribeshill along the Mohawk from Amsterdam to Hoffmanns 

 ferry, also in southwestern Saratoga county and west of Saratoga 

 Spring. 



According to "Walcott 2 the section of Calciferous near Sara- 

 toga involves: 



Massive layers of steel gray, more or less arenaceous lime- Feet 



ae 125 



Massive bedded, slightly magnesian, gray and dove colored 



limestone 35 



Unfossiliferous, impure, compact, more or less silicious lime- 

 stone 95 



1 >ark gray, evenly bedded limestone 50 



( Politic limestone 30 



Chazy 

 The Chazy limestone first appears at Saratoga and extends 

 northward along the Champlain valley to Montreal. The area 



i 13th an. r*p't N. Y. state geol. p. 612. 

 1 Bui. 81. U. S. geol. Bur. p. 346. 



