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This layer represents the surficial and near-surface geology for over 20 years of STATEMAP geologic mapping. Each polygon represents the lithostratigraphic unit that is at or near the surface. Polygons were mapped at the 1:24,000 scale using samples from the FGS cores and cuttings repository, new core samples taken during the course of the project, extensive field work and surface sample collection, and computer modelling. Please note that much of Florida is covered with undifferentiated sediments, and by convention the FGS maps the first recognizable lithostratigraphic unit occurring within 20 feet of the land surface. Areas with >20 ft of undifferentiated sediments are mapped as Qu or Qbd. The original, published maps and reports for the STATEMAP projects can be found in the Open File Map Series and Open File Reports published by the Florida Geological Survey (Tallahassee, Fl). For the original published maps and reports, please see the Library page at http://www.dep.state.fl.us/geology/ or the STATEMAP ESRI Storymap at http://fdep.maps.arcgis.com/apps/MapJournal/index.html?appid=b4f5974ba6c44badabe574426f865908 |