LITTLE COMPTON SHALES. 281 



the southern end of the pond; strike N. 85° W., dip 60° S. Northwest, 

 near the end of a point projecting into Nannaquacket Pond, is dark, almost 

 black, sandstone, which seems to strike N. 75° W., dip almost vertical. 

 It may be. sandstone belonging- beneath the coarse conglomerate series. In 

 that case a fault or sharp anticlinal fold must be imagined along its north- 

 east side. At the bend of the road, nearly east, the conglomerate strikes 

 N. 75° W., dip 70° S. Near the north end of the hill forming this exposure 

 unsatisfactory exposures indicate a strike of N. 35° W., dip 70° E. North 

 of a small stream a small hill occurs west of the road. Near its southern 

 end coarse conglomerate is exposed. Northwest, at the shore, an inter- 

 bedded sandstone layer shows strike N. 3° E., dip apparently 50° W. 

 South of the creek and east of the road numerous bowlders of dark-blue 

 to black sandstone, sometimes shaly, occur toward the northern end of a 

 hill. The trend of the hill is N. 10° E. These sandstones are of the kind 

 which underlie the coarse conglomerate series and which are found eastward 

 in the series resting upon the granite associated with and over the arkoses. 



The greatly varying strike and dip of the coarse conglomerate series 

 here described may be partly due to cross bedding. In still larger meas- 

 ure, however, it is the result of the breaking up of the conglomerate series 

 by a system of faults into numerous large masses or blocks, with frequent 

 and variable tilting, but not enough to disguise the essential unity of the 

 series. In general these blocks show a northward strike and westward dip. 

 At Fog'land and High Hill Points, however, there are low eastward dips 

 showing a shallow syncline between this and Windmill Hill. Southward 

 this syncline probably became strongly accentuated, giving- rise to the steep 

 eastward dips of the coarse conglomerates on the west side of Sakonnet 

 River from Black Point to Smiths Beach. 



On the west side of the neck west of Nannaquacket Pond, about two- 

 thirds of its length from its north end, occur, several exposures of grayish 

 sandstone and of conglomerate with medium-sized pebbles, of which the 

 stratigraphic position can not be determined. 



LITTLE COMPTON SHALES. 



From Browns Point to the south side of Pachet Brook southward, 

 within half a mile of the road running north from Little Compton, thence 

 westward and along the shore as far as the granite area, extends a series of 

 slates and shales which evidently constitute a geological unit. The most 



