FEOM WIOKFORD TO EAST GJEtEENWlGH. 251 



bordering the Carboniferous field in this direction from Hammond Hill 

 beyond Congdon Hill. 



As already stated, the exposures from Saunderstown to Wickford and 

 westward are a northward extension of the series which is developed to 

 the southward as far as Narragansett Pier. 



FBOM WICKFOBD TO EAST GKEE]SrWICH. 



Northward of Wickford, as far as East Greenwich* the rocks last above 

 described continue to occur, but there is a marked change in their dip, the 

 general dip being westerly, except on Potowomut Neck, where the strike 

 swings around to the northeast, and more or less irregular folding gives 

 both northwesterly and southeasterly dips. 



The most western exposures occur about a mile south of Davis ville, 

 along the railroad. Here a bluish sandstone, with conglomeratic layers 

 and carbonaceous color banding, shows strike N,-S., dip 45 "^ W. East of 

 these exposures, about half a mile west of the road between Wickford and 

 East Greenwich, on the north side of the connecting road toward Davis- 

 ville, abundant exposures show strike N. 12^ W., dip 70^ W. Along the 

 western side of the main road itself exposures are frequent for a distance 

 of about 2 miles north of Wickford. One of the more southern exposures, 

 on a hill west of the road, shows strike N. 40^ E., dip very steep, about 

 vertical, perhaps slightly east. A quarry near the northern end of this 

 series shows a strike of N. 18^ E., dip 85° W., well marked by narrow 

 carbonaceous color banding in a coarse sandstone. North of this quarry a 

 short distance a road goes eastward; 1^ miles eastward along this road a 

 road goes northward. Along this road occurs an exposure of a very car- 

 bonaceous, possibly ottrelitic, sandstone with strike N. 20° E. and dip 

 westerly. About 1^ miles directly north of this exposure, on the south- 

 east side of a road, there is sandstone with thin pebble layers. There 

 seems to be a very low northerly dip of the rocks here, nearly horizontal 

 The most easterly exposures occur west of Clarks Point, along the west 

 side of the road, as far north as Halls Creek. The strike on the average 

 is N.-S., the dip 20° W. About 1| miles northwest of Aliens Harbor 

 and 1 mile south of Potowomut River there is a large exposure north of a 

 schoolhouse at the road comer. The rock here is largely of the fine-grained, 



