162 The American Geologist. September, 1905 
THE ATLANTIC HIGHLANDS SECTION OF THE NEW JERSEY 
CRETACIC* 
By J. K. Pratiiek, Waco, Texas. 
PLATES VIII, IX and X. 
The sections discussed in this paper are located near 
Atlantic Highlands, Monmouth county, New Jersey, along 
the line of the Central Railroad of New Jersey from the sta- 
tion at Bay View avenue almost to the next stop at Water- 
witch station. 
The following beds are found in this section :t 
Cretacic(?) Columbian formation. 
Pleistocene (?) Long Branch sand 4 ft. 
{ I Red Bank 100 ft 
Monmouth { Navesink 40 ft. 
yj ; Mt. Laurel sand 50 ft. 
Cretacic { f Bay View Avenue sand 35 ft. 
Upper ) Hazlet ! (Upper Hazlet or Wenonah ?) 
Matawan j sand. . j Marshalltown clays. . . . 30 ft. 
^ I Columbus sand 10 ft 
Besides the field relations of these beds their lithological 
character was subjected to a careful examination. Samples 
of the beds were taken at intervals as indicated by the let- 
ters on the section. 
Twenty c. c. of a sample was put in a wash bottle with 
an equal amount of soda and agitated and allowed to stand 
for 5 minutes, I hour, and 24 hours respectively, and de- 
canted. The 1 hour and 24 hour samples contained little 
else than fine clay — the character of the other samples is 
given in a table. 
The Long Branch Sand. 
A yellow quartz sand not unlike the Redbank but gen- 
erally has more fine clay material. It is about 4 feet thick 
and is quite persistent in its occurrence. There is an uncon- 
formity between this bed and the Redbank. Above the 
Long Branch is the Columbian gravel with an uncomformity 
between it and the Long Branch sand. 
The Long Branch was considered Miocene by Clark, 
but Weller has found Terebratula harlani and Gryphaa vesi- 
cularis besides Bryozoa and considers it Cretacic* 
* From "The Cretacic Clays at Atlantic Highlands, New Jersey," sub- 
mitted as an A. M. thesis at Columbia University, April, 1905. 
f For a complete classification of the New Jersey Cretacic see paper 
by Stuart Weller; "The Classification of the Upper Cretaceous Forma- 
tions and Faunas of New Jersey", Journal of Geology, vol. xii. No. 1. 
* See Weller's paper previously referred to (Journal of neology, vol. 
xii. No. 1, p. 82.) 
