Age (Ma)
0.0000.010170190310325432442460475520560
Cenozoic
Quaternary
Holocene
Pleistocene
Mesozoic
Jurassic
Middle Jurassic
Early Jurassic
Paleozoic
Carboniferous
Pennsylvanian
Mississippian
Paleozoic
Silurian
Wenlock
Llandovery
Paleozoic
Ordovician
Middle Ordovician
Early Ordovician
Paleozoic
Cambrian
Series 2
Terreneuvian
Neoproterozoic
Ediacaran
Unnamed
Unnamed
Stone Mountain, Panola, Ben Hill, and Palmetto Granites / Union City Granite Complex
Lanier Mountain Quartzite Member
Norris Lake Schist Member
Soapstone Ridge Complex
Senoia Member of Zebulon Formation
Norcross Gneiss
Clairmont Formation
Inman Yard Formation and Promised Land Fm
Wahoo Creek Formation
Powers Ferry Formation
Bill Arp Formation
Stonewall Formation
Frolona Formation
Clarkston Formation
Big Cotton Indian Formation
Barrow Hill Formation
Ison Branch Formation
Camp Creek Formation
168.19 Myr
112.53 Myr
105.05 Myr
16.09 Myr
34.66 Myr

Atlanta Area, Georgia – Piedmont-Blue Ridge

#363, project 1, show in map.