252 NEW YORK STATE MUSEUM 



Feet Inches 



p2 Agoniatite (Goniatite) limestone, a dark gray, 

 impure limestone with Orthoceras mar- 

 cellense and other fossils 2 



p 1 Mostly covered. Approximately 22 



Total Marcellus 180 



Forming a gentle cultivated slope, the con- 

 tact with the overlying Hamilton forming a 

 pronounced change of angle. 



o Onondaga limestone forming a succession of 

 rather steep slopes with frequent outcrops. 

 The upper beds are cherty 105 



n Schoharie grit, mostly covered, but weathered 

 fragments are found on the slope of Esopus 

 below [estimated] G ? 



m Esopus shales. Chocolate-colored gritty shales 

 much checked by weathering and mostly cov- 

 ered. Spirophyton cauda - g a 1 1 i in 

 some of the higher beds 85 



1 Oriskany sandstone. Silicious limestone wea- 

 thering to a brown porous sandrock in which 

 the numerous fossils are preserved as molds. 

 It forms broad terraces and fields along the 

 hill. Approximately 2 4 



k Port Ewen limestones. (?)Gray crystalline lime- 

 stones, not well exposed, grade downward into 

 the Becraft. Estimated thickness about 



j Becraft limestone. Best exposed in the upper 

 Mix and O'Reilly quarry and in the cliffs below 

 the highway to the north of this. Highly crys- 

 talline calcarenyte and often a shell rock or 

 coquina. On the weathered surfaces the fossils 

 si and out in relief. Spirifer concin- 

 n n s , S i e b e r e 1 1 a p s e u <1 o g a 1 e a f a , 

 A s p i (1 o c r inns scutellif o r m i s, etc. 15 



