310 GEOLOGY OF THE NARRAGAXSETT BASIN. 



of exposures occurs half a mile southward, east of Almys Pond. Here 

 sandstone, shaly sandstone, and conglomerate are interbedded. The con- 

 glomerate contains medium-sized pebbles of a quartzitic rock. Here also 

 the strike is a little east of north and the dip very steep westward. 



NORTHEAST LINES OF POSSIBLE FAULTING. 



It may be noticed that a line connecting the most northern exposure 

 of the greenish Sheep Point rock, along the eastern end of Bailey Beach, with 

 its most northern exposure on the east side of Newport, north of Sheep 

 Point, takes a northeast direction, and north of this line lie the Carbonifer- 

 ous rocks of the Newport Cliffs, evidently faulted against the older 

 series. Moreover, along the northeasterly trend of the coast forming the 

 southern border of Newport Harbor, the pre-Carboniferous green shale 

 series, elsewhere called the pre-Carboniferous green shale of Newport Neck, 

 occurs at several localities. Little Lime Rock and the series of green shales 

 southeast of. that locality have already been mentioned. Lime Rock itself 

 belongs to this shale series, although itself composed of limestone. 



The promontory a quarter of a mile southwest of Lime Rock, con- 

 sisting of green shale and limestone, and the similar exposure northeast of 

 the stables on the southwest side of Brentons Cove belong to the same 

 shale series. 



On the other hand, the rocks immediately south of the exposures just 

 mentioned, which form the neck proper, are granite eastward, and a green- 

 ish and purplish fine-grained rock of uncertain character, looking like 

 argillite, westward, as will be seen from the map, or from the description of 

 the rocks forming the neck. 



CARBONIFEROUS ROCKS ALONG THE NEWPORT CLIFFS. 



The discussion of the series of rocks forming the cliffs at Newport has 

 been left to the last, since least is known about them. It was intended to 

 prepare a careful detailed section of these beds, but considering the small 

 amount of time at the writer's disposal and the inaccessibility of these 

 rocks except at low tide, it was decided that the time required could be 

 more profitably employed elsewhere. This was especially the case since 

 the cliff exposures could not be definitely brought into relation with others 

 of known stratigraphic position. 



