258 



NEW YORK STATE MUSEUM 



9 Section of north slope of Sunset hill 



Prosser 



To the south of Howe's cave and Cobleskill creek is a steep hill, 

 rising about 1000 feet above the level of the creek. This is the 

 northern slope of Sunset hill, and it affords a fair section of the 

 formations in this region. The following gives their approximate 

 thickness. 



Feet Total 



p-q Marcellus and Hamilton formations from the 

 highway to the top of the hill ; but the slope is 

 mostly covered. Fine pieces of Marcellus 

 shale occur on the lower part of this slope, and 

 thin Hamilton sandstones were seen toward 

 the top of the hill 528-965 



Onondaga limestone; massive, light gray lime- 



stone forming low ledges to the level of the 



highway 05-437 



n Schoharie. Covered, included in preceding 

 m Esopus black shales, which weather to a grayish 

 color ; mostly covered, but 8 feet showing in an 

 excavation south of the old house and about 

 35 feet above their base 100-342 



1 Oriskany sandstone, very fossiliferous; upper 



part a very dark gray to blackish quartzose 

 sandstone; lower part lighter gray. Well ex- 

 posed, in contact with the subjacent shaly 

 limestone, just west of an old house, where it 

 is from H to 2 feet thick 2-242 



k Port Eiren shaly limestone ; rather thin bedded, 



light gray limestone in which there are fossils. 11-240 



j Becraft; massive, light gray limestone, forming 

 a steep ledge from 15 to possibly 18 feet in 

 thickness 15-229 



i New Scotland shaly limestone; mostly a covered 

 slope with only a little of the limestone shown 

 at the top of the formation 95-214 



