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NEW YORK STATE MUSEUM 



the New Scotland beds. Davis does not cite any particular lo- 

 cality where this formation can be seen, but this map [op. cit. 

 p. 391] shows the formation, as understood by him, to be present 

 in all continuous sections in the vicinity of the Vlightberg, the 

 North hill, the Port Ewen section, and in what he calls " the 

 southwestern synclinal," which extends southward for about 2 

 miles from the village of Wilbur along the western side of Ron- 

 dout creek. Darton [1894, p. 303, 318, map and sections on pi. 4, 

 p. 319-25] describes the occurrence and relations of this forma 

 tion in the vicinity of Rondout and southward toward Rosendale. 

 At a later date, with the object of eliminating physical terms of 

 nomenclature, Clarke and Schuchert [1899, p. 878] applied the 

 name Kingston beds " to this formation, and cited as typical 

 the section seen along the West Shore Railroad southeast of the 

 high bridge over the Rondout creek about V/ 2 miles south of the 

 Kingston depot, which had been examined by van Ingen and 

 Ruedemann [Clarke, 1900, p. 73]. The term " Kingston " was 

 however preoccupied and accordingly Clarke [1902, p. 666] sug- 

 gests the name Port Ewen, taking it from the name of the West 

 Shore station near which the formation is seen to best advantage. 



The Port Ewen beds lie between the Becraft limestone and the 

 Oriskany sandstone and they consist of massive beds of impure 

 siliceo-argillaceous limestones which slightly resemble the New 

 Scotland limestones that lie below the Becraft. The minimum 

 thickness, as determined by careful measurements at different 

 points in the vicinity of Rondout. varies from 110 to 160 feet, 

 and the formation probably attains, in places, a maximum thick- 

 ness of about 200 feet. The peculiar characteristics of these 

 Port Ewen beds are best seen in the culs along the West Shore 

 Railroad between Port Ewen station and the southeast end of the 

 high bridge at Wilbur, and in the prospect tunnel driven into the 

 hanging wall of the White lime quarry on the North hill. Other 

 favorable points for examining the formation are: on the hill- 

 side over the southeast end of the West Shore Railroad tunnel 

 at Wilbur, where the entire formation is seen lying between the 

 Becraft below and the Oriskany above; on the top of the quarry 

 in the Becraft limestone along the curved outcrop of the syn- 

 clinal trough southwest of the Port Ewen railway cut; in the 



