Table 2. Generalized correlation chart for units mapped within study area (ages compiled from Covington, 1993, Missimer et al., 1994,
Scott et al., 1994, and Wingard et al., 1994). Numbers are million years before present. Ages are included for reference only and are not


scaled to correlate with all columns in the table. MFCU is Middle Floridan confining unit;
and Caloosahatchee Formations.


Erathem System


Lithostratigraphic
 unit


- S U I U


 Holocene
- .01 -
 Pleistocene
- 1.8

 Pliocene

- 5.3



 Miocene


-- 23.03-


 Oligocene

- 33.9




 Eocene


Undifferentiated
sand, shell, and clay
 (UDSC)


 Bone
 Valley Mbr.
m Peace River Fm.
0
 Arcadia
 Formation

 Tampa
-c Member
 Nocatee
 Member


I Suwannee Limestone


Ocala Limestone


Avon Park
Formation


Hydrostratigraphic
 unit


Quat-
ernary






 0
 0V
 <u


UDSC includes the Tamiami, Ft. Thompson


Series


 Generalized lithology

Highly variable lithology ranging from
unconsolidated sands to clay beds with trace
amounts of shell fragments
Peace River Formation contains interbedded
sands, clays and carbonates with siliciclastic
component being dominant; variable
phosphate sand content

Arcadia Formation is a fine-grained carbonate
with low to moderate phosphate and quartz
sand, variably dolomitic

Suwannee Limestone is a fine-to medium-
grained packstone to grainstone with trace
organic and variable dolomite and clay
content
Ocala Limestone is a chalky, very fine-to
fine-grained wackestone/packstone varying
with depth to a biogenic medium- to
coarse-grained packstone grainstone; trace
amounts of organic material, clay and
variable amounts of dolomite

Avon Park is a fine-grained packstone with
variable amounts of organic-rich laminations
near top; limestone with dolostone interbeds
typical in upper part, deeper beds are
continuous dolostone with gypsum near base


 surficial aquifer
 system (SAS)




 intermediate
 aquifer
 system or
 intermediate
 confining unit
 (IAS/ICU)







E Upper
 Floridan
 aquifer
 (UFA)


0
C
'

2 ,*-''MFCU