ILLUSTRATIONS 



Page 



Figure 1. Map of Coastal Plain of Ceorgia showing location of logged wells and geologic ^^v 



sections _ 



Cover 



2. Thickness-distribution map of Recent to Miocene deposits 11 



3. Structural-contour map of the top of Oligocene deposits 12 



4. Thickness-distribution map of Oligocene deposits 14 



5. Distribution of Oligocene index fossil: Rotalia mexicana var 15 



6. Structural-contour map of the top of upper Eocene deposits 20 



7. Thickness-distribution map of upper Eocene deposits 21 



8. Structural-contour map of the top of the middle Eocene deposits 26 



9. Thickness-distribution map of middle Eocene deposits 27 



10. Structural-contour map of the top of lower Eocene deposits and erosion surface 34 



11. Thickness-distribution map of lower Eocene deposits 35 



12. Structural-contour map of the top of Paleocene deposits 39 



13. Thickness-distribution map of Paleocene deposits 40 



14. Structural-contour map of the top of Upper Cretaceous post-Tuscaloosa 



deposits 42 



15. Thickness-distribution map of post-Tuscaloosa Cretaceous deposits 43 



16. Structural-contour map of the top of Tuscaloosa Formation 49 



17. Thickness-distribution map of Tuscaloosa Formation 50 



18. Structural-contour map of the top of Lower Cretaceous(?) deposits 



and erosion surface 52 



19. Thickness-distribution map of Lower Cretaceous(?) deposits 53 



20. Structural-contour map of the pre-Cretaceous surface 54 



21. Geologic section, Early County northeastward to Richmond County 58 



22. Geologic section, Seminole County northeastward to Richmond County 59 



23. Geologic section, Brooks County northeastward to Beaufort County, S. C 60 



24. Geologic section,. Early County easterly to Mcintosh County 61 



25. Geologic section, Decatur County eastward to Echols County 62 



26. Geologic section, Clay County southeastward to Echols County 63 



27. Geologic section, Macon County southeastward to Glynn County 64 



28. Geologic section, Chattahoochee County southward to Decatur County 65 



II 



