44 Quaternary Formations of Southern New Jersey. 



South and southeast of Bennetts Mills there are exposures at 

 70 to 100 feet. The material is generally more sandy than 

 typical Bridgeton material farther northwest, though normal for 

 this region. 



At Hesstown, 7 miles southeast of Millville, there is an ex- 

 posure in the 94-foot hill, showing arkose sand and gravel, with 

 a cobble bed at the base. 



Between Tuckahoe River and Bgg Harbor River. — Between 

 these streams the Bridgeton formation covers the low uplands, 

 ranging in elevation from 70 feet or so near Mays Landing, to 

 40 feet, 3 miles north of Tuckahoe. South of Walker Forge, 

 between South River and Stephens Creek, there is a considerable 

 area of the formation, well exposed in the 71 -foot hill south of 

 the Forge. The base of the formation has an altitude of about 

 60 feet, and is cemented to conglomerate to some extent. 

 Numerous other exposures occur on the road from Walker 

 Forge to Estellville. They show repeatedly a thin cobble bed 

 at the base, cemented in some places. 



Southwest of Estellville there is a considerable area of 

 Bridgeton on the divide between Tuckahoe River and Stephens 

 Creek, and between Tuckahoe River and Pole Bridge Branch, 

 centering about Russia. The gravel of this area is more com- 

 pact and loamy then in the area to the north; otherwise it is 

 essentially the same. That is, quartz and chert are the dominant 

 materials, with cobbles 3 to 6. inches in diameter abundant in 

 some places and rare in others. The gravel is cemented locally. 



The general relations of the Bridgeton in this region are 

 shown in Fig. 29, which extends from the vicinity of Green 

 Tree to Tuckahoe. 1 The relations are much like those 

 shown in Fig. 5. The thickness of the Bridgeton along the line 

 of Fig. 29 is nearly uniform, but slightly greater at the north- 

 west, near Green Tree. 



The formation is well exposed at Buck Hill, about 3 miles 

 north of Tuckahoe. The section is 6 to 12 feet deep, and the 

 material coarse, orange-to-brown sand of arkose type, with 

 scattered pebbles and beds of gravel. A bed of coarse gravel 



1 Figures 29, 30, 32, 33 are shown on Plate B, facing page 54. 



