Bridgeton Formation* — Locai, Details. 41 



The Bridgeton is well exposed in the vicinity of Elmer, par- 

 ticularly along the stream south of the village. In Jones' pit, 

 west of Elmer, red shale is abundant in the gravel, but there is 

 much less of it in the exposures south of Elmer. Coarse material 

 at the base of the formation is common here, and in many places 

 carries bowlders 1 to 3 feet in diameter. 



There are several gravel pits in the vicinity of Palatine, 

 especially along the bank of the stream, and in the vicinity of 

 Upper Neck, on the east side of Muddy Run. Good exposures 

 are to be seen, also, about Centerton and Finley. At the latter 

 place there is a large pit on the railroad showing 20 feet of 

 Bridgeton gravel and sand, overlying the Cohansey sand which 

 carries laminae of clay. 



About Rosenhayn, a little Bridgeton gravel and sand overlie 

 the Cohansey clay, which is here used for brick. A mile east of 

 Rosenhayn, the railway cut at 90 feet shows Bridgeton over 

 Cohansey. The former carries bowlders 1 to 2 feet in diameter, 

 crystalline rock and sandstone both being represented. 



Other exposures occur in the 134-foot hill southwest of Carmel, 

 and in the vicinity of Gouldstown and Fairton. The sand and 

 gravel are cemented in some places. The Cohansey, parts of 

 which are of coarse sand in this vicinity, is sometimes hard to 

 distinguish from the Bridgeton. 



Near Cohansey Creek, the Bridgeton has been largely removed, 

 but the coarser materials which characterize its base remain in 

 abundance on the surface. Some of them are large. Two 

 miles south of Fairton there is a bowlder of quartzite 2x2x5 

 feet, and bowlders of Miocene quartzite are common. 



In the vicinity of Center Grove it is difficult, if not impossible, 

 to distinguish the Bridgeton formation from the Pensauken. 

 About Cedarville, arkose gravel and sand, probably Bridgeton, 

 overlie the glass sand of the Cohansey formation. The gravel 

 and sand have the general constitution of the Bridgeton, with 

 the bed of coarse gravel or cobbles at the base in many places. 

 A mile south of Cedarville there is a large glass-sand pit (Co- 

 hansey) at a level of 30-40 feet. This has a cover of 3 to 8 feet 

 of sand younger than Bridgeton, and in contrast with it. 



