Dale.] 200 [January 3 



stream struck the folds of conglomerate and the edges of the 

 hornblende rocks as well as the exposure of the upturned edges 

 of the layers to the weather, accounts for their shattered condition 

 and curved outline. The sudden dying out of both folds and 

 fault to the north explains the abrupt transition from a scene of 

 devastation to one of rural orderliness. Along the shore the 

 headlands generally consist of the conglomerate and harder rocks 

 while the receding inlets and beaches mark the places of the softer 

 slates and shales, but not without exception, notably between 

 Black Pt. and High Hill Pt. where the conglomerate is cut by 

 Sakonnet River, and on Sachuest Beach where ridge VI suddenly 

 terminates owing either to a transverse fault or erosion. The 

 sanding up of the inlets and the formation of beaches with brack- 

 ish water ponds behind them, as at Sachuest Beach and between 

 the Paradise ridges, is part of a process which is gradually enlarg- 

 ing and rounding the coast line as may be seen in studying maps 

 of Block Island, Martha's Vineyard and Cape Cod. 1 



Explanation of Plates. 



Plate 1. Map of part of Aquidneck Island, etc. Scale 80 ^ 6o . 

 Plate 2. Map of Paradise Rocks near Newport, R. I. Scale T o ^ . 

 Plate 3. Sections. 



A. From near east end of Easton's Beach across Easton's Point, 

 E. by S. , to near Purgatory. Length 1070 yards. 1, Argill. schists, etc., 

 2, Quartzite conglomerate. 



B. From near Swamp Road across "Paradise," and the Hanging 

 Rocks, about E. by S., to Gardiner's Pond. Length 1000 yds. Horizontal 

 scale double that of the other sections. 



1, Quartzite conglomerate; 2, argill. schist; 3, 5, 7, 9, 11, mica schist; 

 4, 6, 8, 10, 12, hornblende schist. 2, reappears east of section B\ 



C. Across the shore, close to Taggart's Ferry in an E.SE. direction. 

 The projecting rocks, called "Wood's Castle," south of section line, are 

 added. Length 1100 yds. 



1 , Quartzite conglomerate ; 2, alternating carbonaceous schists and grits 

 with some conglomerate; 3, unobserved, probably same as 2. 



D. From west side Sachuest Neck, E.SE., to Sakonnet "River." Length 

 600 yds. 



1, Conglomerate and argill. serpentine; 2, quartz and clay aggregate; 

 4, black slate with coal-plants. 



1 See Oscar Peschel. Neue Probleme der vergleichenden Erdkunde als Versuch 

 einer Morphologie der Erdoberflache. Cap. 13. Die Entwickelungsgeschichte der 

 stehenden Wasser auf der Erde. 2d Ed. Leipzig, 1876. 



