U.S. Department of the Interior Professional Paper 1807 U.S. Geological Survey Groundwater Resources Program Plate 2 of 23

UNIT ALABAMA FLORIDA GEORGIA SOUTH CAROLINA MAPPED GULF COAST SYSTEM SERIES Northern Southern IN THIS Panhandle peninsula peninsula REPORT West East Southwest Southeast Southwest Northeast Downdip Updip

Undifferentiated Undifferentiated Undifferentiated Undifferentiated Holocene Post-glacial deposits deposits deposits deposits

Undifferentiated Undifferentiated Terrace terrace sand, shell, Post- deposits Pleisto- Wisconsin Terrace Terrace and and clay Quaternary cene to deposits deposits shallow deposits Terrace rocks Nebraskan marine deposits deposits Waccamaw Formation Miccosukee Citronelle Formation Formation Citronelle Foleyan and Undifferentiated Tamiami Miccosukee Cypress- Raysor sand, shell, Raysor Goose Formation equivalents Formation Formation head Forma- Jackson Bluff and clay Creek Formation tion Limestone Formation Member Coosawhatchie Clovellian Fm Peace River Alum Statenville Ducklakian Undifferentiated Fm Formation deposits Bluff Napoleonvillian Marks Head Fm Coosa- Staten- Ebenezer Ebenezer Rocks of Group whatchie Member Member Torreya Penney ville Miocene Arcadia Fm Fm Miocene Fm Farms Fm Coosawhatchie Coosawhatchie age Formation Formation Formation Torreya St. Marks Chattahoochee Tampa Marks Head Marks Head Anachuacian Hawthorn Group Formation Catahoula Sandstone Formation Formation Member 1 Formation Formation (restricted) Hawthorn Group Parachuchla Fm Hawthorn Group Nocatee Lower part of Chatta- Para- Parachuchla hoochee 1 chuchla Formation Tiger Leap Member Member Arcadia Fm Fm Fm Paynes Hammock Drayton Limestone Ashley Fm Suwannee Suwannee Chickasawhay Fm Chickasawhay Member Chckasawhayan (restricted) Formation Limestone Limestone (restricted) Bridgeboro Suwannee Suwannee Limestone Bridgeboro Limestone Limestone Limestone Bucatunna Clay Bucatunna Member Clay Member Rocks of Oligocene Oligocene Byram Unnamed marl age Formation Member Byram Fm Glendon Limestone Glendon Vicksburgian Limestone Marianna

Vicksburg Group Vicksburg Member Formation Mint Marianna Marianna

Spring Ochlockonee Formation Member Formation Formation Forest Hill Red Formation Bluff Bumpnose Formation Bumpnose Formation Formation Cooper Parkers Ferry Shubuta Fm Tobacco Member Tobacco (part) Member Road Road Harleyville Sand Puchuta Marl Sand Member Member Member Cooper Group Irwinton Rocks of Dry Branch

Ocala Sand late Cocoa Sand Ocala Ocala Member Jacksonian Clay Yazoo Member Eocene Member Limestone Limestone Limestone (updip) age Twiggs North Twistwood Clay

Creek Clay Member Member Barnwell Group

Moodys Branch

Clinchfield Barnwell Formation Formation Sand

Tertiary Eocene Gosport McBean McBean Sand Formation Cross Formation Member Rocks of ? Avon Avon Santee middle Avon Libson Libson Park Libson Park Lime- Warley Eocene Claibornian 2 2 Park 2 Formation Formation Formation Formation Formation stone Hill

Formation Santee Limestone age Moultrie Marl Member ? Huber Tallahatta Tallahatta Tallahatta (?) Congaree 2 2 2 Formation Formation Formation Formation Formation

Rocks of Hatchetigbee early Formation Undifferentiated Bashi Hatchetigbee Oldsmar Eocene lower Eocene Member Formation Formation age rocks Fishburne Formation Bells Landing Oldsmar Oldsmar Marl Member Formation Formation Tuscahoma Tuscahoma Sabinian Formation Formation Greggs Landing Undifferentiated Marl Member Paleocene

Baker rocks Black Mingo Group Grampian Hills Wilcox Group Williamsburg Formation Member Hill Nanafalia Wilcox Group “Ostrea thirsae” beds Fm Formation Nanafalia Gravel Creek Formation Sand Member Salt Mountain Salt Mountain Limestone3 Limestone3 Coal Bluff Rocks of Cedar Lang Syne Formation Paleocene Paleocene Marl Member Keys age Cedar Cedar Formation

Oak Hill Naheola

Formation Keys Keys Member Formation Formation Matthews Landing Porters Marl Member Midwayan Creek Porters Creek Formation Formation Undifferentiated Rhems Formation McBryde Paleocene Clayton rocks Limestone Clayton Member Formation Formation Pine Barren Member

Prairie Bluff Providence Providence Sand Chalk Sand Rocks of Rocks of Lawson Lawson Peedee Formation/ Navarroan Navarro Ripley Lawson Navarro Ripley Formation Limestone Limestone 4 Steel Creek Formation age Formation Limestone age Cusseta Sand Gulfian Demopolis Cusseta Sand Member Chalk Member

Cretaceous Rocks of Rocks of Rocks of Rocks of Tayloran Rocks of Blufftown Taylor age Black Creek Taylor age Arcola Limestone Taylor age Taylor age Formation Member of Taylor age Group Mooreville Chalk (part) (part)

1Previously included in Tampa Limestone. Any use of trade, firm, or product names is for descriptive purposes only 2Clastic unit now included in Lower Floridan aquifer. EXPLANATION and does not imply endorsement by the U.S. Government. 3Local, mostly subsurface. Mostly carbonate rocks of Floridan aquifer system Digital files available at http://pubs.usgs.gov/pp/1807/. 4 Very locally part of Floridan aquifer system. Suggested citation: Williams, L.J., and Kuniansky, E.L., 2015, Revised Mostly clastic rocks of Southeastern Coastal Plain aquifer system hydrogeologic framework of the Floridan aquifer system in Florida and in that are also included in Floridan aquifer system parts of Georgia, Alabama, and South Carolina: U.S. Geological Survey Professional Paper 1807, 140 p., 23 pls., http://dx.doi.org/10.3133/pp1807. Fm Formation ISSN 2330–7102 (online)

Generalized Correlation Chart Showing the Time-Stratigraphic, Rock-Stratigraphic, and Regional Hydrogeologic Units in the Floridan Aquifer System By Lester J. Williams and Eve L. Kuniansky 2015