4^?^ N£W YORK StAtE MtTSEtTM 



Feet 



Y^ Black argillaceous shales nearly to the head of 

 the creek. 56=3^3 



Y^ Partly covered, but in the upper part at the 

 head of the glen are iron-stained shales which weather 

 yellowish and are somewhat transitional from the 

 Utica to the Hudson river. 19=402 



Y^ Mostly covered in the field southeast of glen; 

 sandstone in terrace at top which is perhaps not in 

 place. 19=421 



Y*^ Covered, but at top conspicuous ledge of Hud- 

 son river sandstone. 24=445 



On the western side of Bean hijl the contact of the Utica slate 

 and Hudson river formation is shown on the Charles Overbaugh 

 farm in a gully on the northwestern side of the highway a short dis- 

 tance south of the house. There is a pominent sandstone stratum 

 just below the road below which are black argillaceous and calcare- 

 ous shales. Mr Fisher found this black shale for 50 feet below the 

 sandstone some of the joints in which had been filled with calcite; 

 but saw no indications of sandstones or arenaceous shales. Again 

 in the gully by the house on the south side of the highway is 

 another exposure of the contact of the black Utica shale and Hud- 

 son river sandstone. The black carbonaceous shale is shown in 

 the run about opposite the house, and a little higher is a heavy 

 sandstone stratum. 



Swartstown creek section 



An excellent section from the upper part of the Calciferous sand- 

 rock through the Trenton formation to the base of the Utica slate, 

 is that along Swartstown creek on the south side of the Mohawk 

 river about three fourths of a mile below Crane's village. This 

 section is an interesting one to compare with the one already 

 described opposite Crane's village.^ 



Feet 



461^ Covered from river level to the base of the 

 first cascade in Swartstown creek. ^2= ^2 



V' Arenaceous, light gray, massive limestone. 

 On one of the layers, 6J feet above the base of the 

 lower part of the first cascade, are specimens of 

 Ophileta complanata Van. The top of this 



^ISth annual report N. Y. state geologist, p. 654, 4ea 



