FLORIDA STATE GEOLOGICAL SURVEY. 
26S 
Thickness : Height above river 
of stratum, (stage of Mar. 5,1909) . 
4. Clayey limestone, alternating ledges of 
harder material with lime clay strata 
intervening ...... 16% feet 
3. Stratum of greenish calcium carbonate 
crystals..imbedded in a soft marly 
matrix ... 1 foot 
2. White soft clayey limestone with ledges 
of harder, more compact limestone. 
Some shells as casts and also oc¬ 
casional manatee ribs are found in 
this part of the section. ............ 12 feet 
1. Covered from the river to the base of 
the section a distance of about one- 
fifth mile .... 2114 feet 
34% to 50% feet. 
33% to 34% feet. 
21% to 33% feet. 
0 to 21% feet. 
The alternating ledges of harder and softer material in the lime¬ 
stones of this section afford an opportunity of measuring the dip. In 
the direction northwest to southeast the limestone strata in this section 
show no dip whatever, lying exactly on the level through the distance 
along which the edges of the individual strata are exposed amounting 
to 40 or 50 feet. At the top of the hill where the road turns abruptly 
to the northeast the top of the stratum of the limestone exposure was 
found to dip to the northeast one foot in thirty feet or at the rate of 176 
feet per mile. These observations are in accord with those made at 
other localities, showing that the strata of the Chattahoochee limestone 
are mildly folded, presenting numerous small anticlines and synclines. 
Fig. 4. Section v at Chattahoochee Landing. After Harris. From Maury’s 
Oligocene of the Southern United States. 
