268 GEOLOGY OF THE NARRAGANSETT BASIK 



occurs. Its strike is probably N. 40° to 45° E.; this at least is the direction 

 of the line of outcrop. The color is bluish black, or quite black where 

 shaly. This more southern set of exposures occurs stratigraphically 

 beneath the coaly shale lying farther north. 



BEAYTONS POINT AND NORTHWARD. 



On the northwestern side of the point black coaly shales are exposed. 

 These continue southward as far as the middle of the west shore, where 

 sandstone is frequently interbedded. The strike farther north seems to be 

 N. 50° E., but southward it varies to N. 70° E., and becomes N. 30° E., dip 

 70° W., near the middle of the west shore. The black shales here con- 

 tain Annularia longifolia and fern impressions. Farther southward black 

 coaly shales continue to be exposed as far as the southern end of the point 

 and its southeastern side. These more southern exposures show a strike of 

 N. 50° E., dip 80° W., or other variable lower angles. The bedding here is 

 not often well shown. 



SEWAMMOCK NECK. 



A mile and a quarter west of Brayton, on the road from Fall River, 

 crossing the neck, on the western side of the hill, a rather coarse sandstone 

 is well exposed. Its real strike and dip could not be determined, the 

 apparent bedding being probably only cleavage. Similar gray sandstone is 

 exposed half a mile west of Pottersville, north of the road. This sandstone 

 probably underlies the coaly shales of Braytons Point. 



