Cape May Formation — Local Details. 195 



loam overlie gravels of greater age than Cape May, and at higher 

 levels. Between Harrisonville Station and Harrisonville, there 

 is a bed of clayey matter in the terrace of the headland between 

 Oldmans Creek and the tributary from the south. At Harrison- 

 ville the Cape May gravels and sands rise to 70 feet; but here 

 and farther up the valley, the differentiation of Cape May gravels 

 from the valley phase of the Pensauken is difficult. 



Salem Creek. — The phenomena along Salem Creek duplicate 

 those along the creeks farther north. Where the valley merges 

 into the Delaware lowland a mile or so below Sharptown, the 

 Cape May formation reaches an elevation of about 30 feet, 

 though much of its surface is lower. It rises to 50 feet at 

 Woodstown, 70 feet at Richmanville, and 80 to 90 feet 2 miles 

 farther up. The formation is developed chiefly on the right 

 banks of both main and tributary streams (Majors Run and 

 Nihomus Run). South of Woodstown the formation of the 

 main valley joins that of Nihomus Run to the -south. 



At Courses Landing 10 feet of well-stratified fine gravel and 

 sand appear on the left bank, while on the right, 10 to 15 feet 

 of stratified gravel is covered by 5 to 10 feet of eolian sand. 

 Beneath the lower gravel and sand is gritty clay, probably also 

 of Cape May age. 



.At Sharpstown, there is a terrace at 25 feet, with 10 to 15 feet 

 of sand and gravel over clay marl. Just east of Woodstown, 

 there are terraces on both sides of the stream at 50 feet, with 

 10 to 20 feet of Cape May sand and gravel ; and at Richmanville 

 at 60 feet, on the right bank. There are other terrace remnants 

 a mile and a half above the last-named place. 



Mannington Creek. — A mile and a half from Salem Creek, 

 the left bank of Mannington Creek shows 20 feet of gravel and 

 sand, referable to the Cape May formation. This material is 

 singular for its considerable content of cobbles and bowlders. 

 One bowlder was seen here, with g-lacial striae on two sides. At 

 Welchville there is a 20-foot bench in which exposures show, 

 near the base, sand which is not distinguishable from Pensauken 

 sand. 



