Cape May Formation — Local Details. 205 



The material of the terraces is best exposed northwest of 

 Holm-del, where the brook forks. Between the forks, an exposure 

 showed 4 feet of brownish loam, rather clayey, over 10 feet of 

 glauconitic sand and gravel, well stratified. The 14 feet of 

 material referable to the Cape May formation here is more than 

 the average, but in kind it is similar to that seen at other points. 



The above section is at an altitude of about 130- feet, and 

 about i l / 2 miles from the headwaters of the creek. B A arther up 

 the valley corresponding deposits, except of coarser materials, 

 are found up to 180 feet, and perhaps even to 23,0 feet. This 

 material is clearly waste from the higher lands, temporarily 

 lodged on its way to the sea. Much of it is of recent deposition. 



In general the Cape May material along Willow Brook is on 

 benches of Cretaceous strata 10 to 30 feet above the streams. 

 The creek has cut down through the filling - , and 10 to 30 feet into 

 the Cretaceous below. The terraces indicate either a slightly 

 lower stand of land when the filling took place, or a condition 

 which favored more erosion than now, near the headwaters. The 

 relations of the formation here are much as in other brooks 

 hereabout, except that there is rather more material in this valley 

 than in most of the others. The explanation of this difference 

 is found in the higher lands in which the brook heads. 



Yellow Brook. — The Cape May deposits along Yellow Brook 

 are less considerable than those along Willow Brook, as already 

 implied. The deposits are represented in the area between Hop 

 Brook and Yellow Brook, and at intervals up the valley to Colts 

 Xeck ; but they are thin in many places, even where distinct. 

 Even where terraces are fairly distinct, they are not in all cases 

 of Cape May material chiefly. No section showing more than 

 10 feet of this material has been seen on the north side of the 

 valley, the thickest being east of north of Colts Neck. The 

 formation does not appear to rise higher than 90 feet at Colts 

 Neck. 



On the south side of the brook, north of Scobeyville, there 

 is a terrace at 50 to 60 feet, which shows the following section : 



15 QUAT 



