SECOND ANNUAL REPORT—STRATIGRAPHIC GEOLOGY. 
14.5 
3. Light yellowish gray sands, est... 3 feet. 
2. Red gritty sands and small pebbles, somewhat argillaceous, with 
clay seam, y 2 to 2 inches thick, cross bedded on a large scale 
near the base, resting unconformably on, est. 10 feet. 
1. Yellow argillaceous sands interlaminated with gray clay. 6^2 feet. 
2. Lafayette. 
I was informed by a local resident that this outcrop is on Sec. 2, T. 4, R. 20. 
On Rock Hill south of Chipley, there is an exposure, of which the 
upper member probably represents the Lafayette. The age of the 
lower part of the outcrop could not be determined. The section at this 
locality is given below. 
Red sand and gravel, containing pebbles up to 1 inch in diameter. In 
places cemented into hard conglomeratic boulders several feet in 
diameter . 20 feet. 
Hard yellowish gray to green sandstone with pebbles of soft green 
clay .•. 10 feet. 
Sections of Lafayette were observed on the tops of hills about 250 
feet above tide on the road between River Junction and Aspalaga 
Bluff. A short distance from River Junction the following section was 
leveled: 
Red sand, containing numerous pebbles .8-10 feet. 
Red argillaceous sand . 45 feet. 
Gray marly clay, strained with iron oxide. 1-j-feet. 
About five miles from River Junction, another similar exposure 
was observed. The section at this locality is as follows: 
Friable orange sandstone, containing some lenses of clay and some 
pebbles . 15 feet. 
Gray sandstone, streaked with yellow iron stains, well cemented. 5 feet. 
QUATERNARY. 
The Quaternary is commonly divided into Pleistocene and Recent, 
but a difficulty often arises in attempting to discriminate Pleistocene 
and Recent, for the reason that the name Pleistocene is associated 
with the glacial period and Recent with the time since the final melt¬ 
ing of the great sheets of ice which covered large areas of the north¬ 
ern parts of Europe and North America. In regions like Florida, re¬ 
mote from the direct influence of glaciation, it is always difficult, and 
frequently impossible, to draw satisfactory lines between the deposits 
of the two periods. In this discussion the term Quaternary will be 
applied to deposits which may belong to either Pleistocene or Recent 
or to both. The name Pleistocene will, as far as possible, be restricted 
to such beds as may safely be placed in the early part of the Quater¬ 
nary, and are probably to be correlated chronologically with the glacial 
