GEOLOGICAL SECTION OF NEW JERSEY 257 
occurs sparingly, it is correlated with a glacial epoch—one, however, 
which long antedated the Wisconsin drift sheet. In relation to other 
Pleistocene deposits, it corresponds roughly to the Wicomico of Mary- 
land. Pensauken deposition was followed by a long period of uplift 
during which the formation was much eroded, nearly all of it being 
removed from areas favorably situated for erosion. 
Cape May formation.—At a later time there was a slight submer- 
gence to the extent of 40 or 50 feet below the present stand of the land. 
During this period terraces were formed at many points along the 
coast and in valleys which were not submerged. ‘The deposits of 
this stage constitute the Cape May formation and are believed to 
correspond in age with those of the last glacial epoch or possibly its 
later stages. The estuarine terraces along Delaware Bay are con- 
tinuous with those along Delaware River above Trenton which 
head in the terminal moraine of the Wisconsin ice-sheet. While 
along the coast and lower Delaware River the terraces do not exceed 
Ao feet in height, and are lower than the Pensauken terraces in the 
same region, yet along the tributary streams they rise to much greater 
elevations, in some cases equaling that of the Pensauken or Bridgeton. 
Since the deposition of the Cape May formation there has been 
an elevation of the land to something above its present level. Still 
more recently, subsidence has been in progress and is apparently 
now going on. 
SECON, HOR NEW JERSEY 
PLEISTOCENE 
GLACIAL NON-GLACIAL : 
Wisconsin Drift o-250+ feet Cape May formation o-20 feet 
Unconformity Unconformity 
Early Glacial Drift o- 30+ feet Pensauken formation o-20-+ feet 
Unconformity 
Bridgeton formation 0-30 feet 
Unconformity 
PLIOCENE? 
Beacon Hill gravel ' Variable 
MIOCENE ? 
Cohansey formation 100-250 feet 
(Sand and clay lenses) 
Unconformity 
