SECOND ANNUAL REPORT—PULLERS EARTH. 271 
Section at Aspalaga Bluff. 
Aspalaga Bluff is seven miles in a direct line from the north bound¬ 
ary of the State and is the first point in Florida at which the river 
channel strikes the east bluff. The following section was made near 
the north end of that part of the bluff facing the river. A continuous 
exposure is not found in any direct line of sectioning. In order to 
determine thickness of strata it is often necessary to transfer the level 
for short distances along the side of the bluff. 
Thickness 
Height above river 
of stratum. 
(stage of Mar. 5,1909). 
12. 
Covered in the line of sectioning to the 
top of the bluff about one-fourth mile 
| 
‘back from the river, about. 
* 60 
feet 
114 
to 
175 
feet. 
11. 
Sloping and covered except for occasion- 
■ i 
al outcrops of impure limestones 
mostly containing fossils as casts... 
51 
feet 
63 
1 
to 
114 
feet. 
10. 
White granular limestone with numer- 
1 
erous shells as casts. 
2 
feet 
61 
4 
63 
feet. 
9. 
White limestone becoming upon ex¬ 
posure hard and of a pinkish color 
(exposed) . 
4 
feet 
57 
to 
61 
feet. 
8. 
Steep slope partly covered but with fre¬ 
quent and almost continuous ex¬ 
posures of light colored impure 
limestone often with clay inclusions 
23 
feet 
34 
to 
57 
feet. 
7. 
White granular limestone with numer- 
erous fossils as casts. 
1 
foot 
33 
to 
34 
feet. 
6. 
White limestone becoming upon ex¬ 
posure hard and of a pinkish color. 
2% feet 
30% to 
33 
feet. 
5. 
Light colored limestone weathering 
rough . 
2 
feet 
28% 
to 
30% 
feet. 
4. 
White limestone becoming upon ex¬ 
posure hard and of a pinkish color.. 
6 
feet 
22% 
to 
28% feet. 
3. 
Sandy light to pale yellow limestone.... 
2% feet 
19% to 
22% feet. 
2. 
Gray to bluish calcareous clay which up¬ 
on drying breaks with a tendency to 
conchoidal exfoliation . 
4 
feet 
15% 
to 
19% feet. 
1. Limestone "at the base to water’s edge 
yellowish and sandy with few fossils, 
above lighter colored with small 
fossils as casts, near the top clayey. 15% feet 0 to 15% feet. 
The calcareous clay (No. 2) of the Aspalaga section forms a very 
characteristic stratum. This stratum seen in numerous exposures from 
Chattahoochee to Aspalaga is very porous and of light specific gravity, 
and except for the presence of calcium carbonate has many resem¬ 
blances to fullers earth. The following is an analysis of a sample from 
