PETROLEUM POSSIBILITIES OE FLORIDA 
97 
Description of samples from well opposite Panama City, located in NW14 S. 23, 
T. 4 S., R. 14 W. Well drilled in 1911 and samples submitted by G. M. West, Pan¬ 
ama City: 
Depth in feet. 
Chiefly sand, with some shell fragments. 1- 30 
Sample preserved as representative of this interval is a dark-colored 
alum-tasting clay, apparently the same clay as exposed at Alum Bluff 30- 60 
Chiefly gray sand marl. The sand grains are clear quartz held together 
by calcareous cement . 60-100 
. Buff-colored, clayey marl; enough clay to become slippery when wet. One 
sample ........ 100-200 
Mixed sample, including a greenish, sandy marl and a light-colored cal¬ 
careous marl . 200-300 
Limestone .—... 300-350 
Gray, clayey marl. One sample...... 350-400 
Sample at 400 feet is light-colored limestone.. 400-460 
Sample reported from 460 feet is a smooth, rounded, black phosphate 
nodule. Probably dropped from above.......... 460-470 
Light-colored limestone . 470 
According to determinations made by Cushman, the Eocene is proba¬ 
bly, although not certainly, reached in this well at 400 feet. 
BRADFORD COUNTY 
Bradford County lies south of Baker and Union Counties in north¬ 
east Florida. In the eastern part of the county is a pronounced topo¬ 
graphical feature known as Trail Ridge. This ridge enters the county 
at the east side near the northeast corner, and continues southward, 
merging into the high lake region area in the southern part of the coun¬ 
ty. With little doubt, the maximum elevations of northeastern Florida 
(about 240 feet) are found on this ridge in the eastern part of Bradford 
County or the western part of Clay County. 
In the northern part of Bradford County the surface exposures in¬ 
clude clays, sandy clays and sands of undetermined age. The only deep 
well recorded in this county is at Starke, and of this well, which reached 
a depth of about 529 feet, unfortunately no adequate record exists. The 
topographically high area of Trail Ridge is suggestive of a structurally 
high area. However, in the absence of adequate exposures and of deep- 
well records, no conclusive evidence is obtained as to structure in this 
area. 
BREVARD COUNTY 
Brevard County is on the Atlantic coast of Florida. The surface for¬ 
mations include shell beds, marls and sands of Pleistocene age. The Plio- 
