EASTERN SHOEE OF AQUIDNEOK ISLAND. 289 



borders the shore, interbedded with a few coaly shale layers and a few 

 thin conglomerate beds with small pebbles and flakes of carbonaceous 

 shale; strike N.-S., dip 20° W. Yet farther south gray sandstone is 

 abundant. Interbedded with this, south of a small stream, a third of a 

 mile from the wharf, is black coaly shale; strike N.-S., dip 30*^ W. 



Half a mile south of the wharf the coaly shale contains impressions 

 of fern leaves; strike N. 3° E., dip 40° W. Southward occurs sandstone, 

 overlain by several feet of fine conglomerate, the pebbles not exceeding 

 1 inch in length; dip 30° W. From the wharf southward rocks con- 

 tinually higher in the series are exposed, but owing to the fact that the 

 strike is almost parallel to the shore, only a small thickness of strata is 

 traversed. 



From this fine conglomerate exposure southward the strike seems to 

 be a little east of south, while the shore line curves inward in such a way 

 as to expose, a third of a mile southward, gray sandstone in the form of 

 large loose blocks. Then, two-fifths of a mile southward, large blocks of 

 coaly shale occur, representing the highest rocks so far described. A third 

 of a mile southward the gray sandstone seems to be repeated, descending 

 in the series; strike N. 7° W., dip 10° W.; and only a short distance 

 beyond, southward, the almost horizontal sandstone contains thin con- 

 glomerate layers with pebbles up to 1 inch in length. The more southerly 

 of these exposures dip 10° W. The thin conglomerate layers continue to 

 occur in the sandstone southward, and at several places they contain the 

 fragments or flakes of coaly shales noted above. 



In the Glen almost half a mile of exposure is seen. The rock is 

 evidently the shale series, very much blacker and more coaly than the 

 corresponding rocks on the west side of the island. East, toward the bay, 

 about 25 feet above the water level, a Cordaites leaf was found in the 

 shale. About 40 feet above the water level there is sandstone interbedded. 

 A comparison of the Grlen section with the shore exposures from McCurrys 

 Point southward beyond Sandy Point shows that the shore exposures also 

 belong to the shale series. As far as can be determined the shale series at 

 the Glen dips low, 5° or 10° E. It certainly is nearly horizontal 



Between the Glen and the beach of Sandy Point there is exposed 

 sandstone sheared into a shaly rock, the shearing planes dipping east of 

 south. No bedding could be recognized. South of the beach of Sandy 

 MON xxxiii 19 



