Mineral Resources On-Line Spatial Data
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Geologic units in Thomas county, Georgia
- Miccosukee Formation (Pliocene) at surface, covers < 0.1 % of this area
Miccosukee Formation - The Miccosukee Formation, named by Hendry and Yon (1967), is a siliciclastic unit with a limited distribution in the eastern panhandle. It occurs in the Tallahassee Hills from central Gadsden County to eastern Madison County, often capping hills. The Miccosukee Formation grades to the west, through a broad facies transition, in central Gadsden County into the Citronelle Formation. The Miccosukee Formation is a prodeltaic deposit. The Miccosukee Formation is composed of grayish orange to grayish red, mottled, poorly to moderately consolidated, interbedded clay, sand and gravel of varying coarseness and admixtures (Hendry and Yon, 1967). The unit is relatively impermeable but is considered a part of the surficial aquifer system (Southeastern Geological Society, 1986).
- Floyd Shale; Hartselle Sandstone member (Mississippian) at surface, covers 36 % of this area
Hartselle Sandstone member (Mh) in Floyd County
- Miccosukee Formation (Neogene) at surface, covers 64 % of this area