42 Quaternary Formations of Southern New Jersey. 



Many of the shallow exposures of this area show a sanely 

 surface, with gravel below, but they do not go below the zone 

 of weathering, and are therefore not very instructive. 



Other exposures of the Bridgeton occur west of Dividing Creek 

 Station, along the railway and northeast of the station, where 

 the sand and gravel are cemented in places. Bits of gneiss 

 occur in the conglomerate. Other exposures appear in the vicinity 

 of Baileytown and Buckshutem, where bits of shale and gneiss 

 may be seen with the arkose sand. Another good exposure 

 is found 2 miles south of Millville, where there is a deep pit 

 worked for "core" sand. The upper part is Bridgeton and the 

 lower part Cohansey, the two not being easily distinguished. 

 Other good exposures occur in pits a mile southwest of Millville, 

 on the Cedar Grove road (Fig. 28), and another at Mulford's 

 Pit, less than a mile south of the last. Sixteen feet of Bridgeton 

 material was here exposed. Extensive working had allowed the 

 accumulation of bowlders in the bottom of the pit. They ranged 

 ,from 1 to 4 feet in diameter, and all were of sandstone and 

 quartzite. The gravel here contained pebbles of clay. 



BETWEEN MAURICE RIVER AND GREAT EGG HARBOR RIVER. 



Between Maurice River and Manantico Creek. — The largest 

 areas of the Bridgeton in this area appear on the uplands about 

 Vineland, mostly above an elevation of 90 feet. The formation 

 here is covered with eolian sand in many places. As the streams 

 cut down through it into the Cohansey beds beneath, abundant 

 sources of sand for the wind to transport were opened up. The 

 smaller areas of the Bridgeton are more commonly covered by 

 sand than the larger ones. 



Numerous gravel pits and road cuts are found in this vicinity. 

 In South Vineland there are pits opened for clay and glass sand, 

 both of which are from the Cohansey; but over the sand and 

 clay there is Bridgeton gravel and sand in most places, ranging 

 up to 12 feet in thickness. 



The general relations of the Bridgeton here are the same as 

 at Downer, 15 miles to the north, and its constitution is essen- 



