-Pensauken Formation — Local Details. 155 



About the headwaters of the Manasquan, down to Fairfield, 

 determinations are unsatisfactory. Exposures are few and poor, 

 but there is a rather prevalent surfacing of gravel and sand. 

 Two miles west of Farmingdale, in the east bank of the. tribu- 

 tary, there is 10 to 15 feet of gravel, regarded as Cape May. 

 Along the Manasquan there are terraces which appear to be with- 

 out much Pleistocene cover. 



Three miles or so east of Freehold are some hills at about 

 200+ feet which are without gravel other than that which goes 

 with the pre-Pleistocene of the region. Near them are other 

 hills at elevations of 140 to 150 feet with some gravel, which 

 appears to go with the gravel of the hills between Englishtown 

 and Wickatunk. A half mile northwest of Jerseyville, at 160 

 feet, there is 4 feet of gravel over Kirkwood sand. This and 

 other remnants at similar levels seem to mark a level of accumu- 

 lation at one time, perhaps during the Pensauken epoch. 



Other similar hilltop gravels occur a mile or so south of 

 Howells Station (at 145 to 150 feet), and south of Fairfield 

 Station (at 140+ feet). 



About Jerseyville gravels occur at various levels between 

 160 and 170 feet. Their materials were derived from the Cre- 

 taceous, Kirkwood, Cohansey, and Beacon Hill formations, and 

 but little from the Cretaceous. The remnants are on ridges and 

 hilltops, and are absent from the hills at 200 feet and above. 

 They appear to agree in elevation more closely with the gravel 

 on Taylor's Hill than with the remnants south of Fairfield, and 

 are therefore tentatively regarded as Bridgeton, although in 

 some respects they are like the Pensauken. 



There are remnants of possible Pensauken, 1% miles and 

 less, northwest of Farmingdale, at 1 10-130 feet. The gravel, 

 like most of that of the region, is quartz, chert, and ironstone. 

 But for the latter, it is very like the Beacon Hill gravel. 



North of Shark River 'there are hilltop caps of gravel, small 

 and rather high. West of Asbury Park and south of Wayside 

 ( Centerville) they occur at elevations of 160 to 200 feet. The 

 higher, smaller patches are farther from the streams ; the lower, 

 larger ones nearer to them. Some of the highest are regarded 

 as Bridgeton, but the lower areas may be Pensauken. At 



