Western Valley & Ridge, Southern Segment, AlabamaSouthern Appalachians

#8, project 1, show in map.

Age (Ma)
350340330
Paleozoic
Carboniferous
Pennsylvanian
Bashkirian
Mississippian
Serpukhovian
Visean
Tournaisian
Pottsville Formation
Parkwood Formation
Floyd Shale
Bangor Limestone
Hartselle Sandstone
Pride Mountain Formation
Tuscumbia Limestone
Fort Payne Formation
1.9 Ma
355
Paleozoic
Carboniferous
Mississippian
Tournaisian
Maury Formation
3.4 Ma
365
Paleozoic
Devonian
Late Devonian
Famennian
Chattanooga Shale
22.7 Ma
400
Paleozoic
Devonian
Middle Devonian
Givetian
Eifelian
Early Devonian
Emsian
Pragian
Lochkovian
Silurian
Pridoli
Frog Mountain Sandstone
7.1 Ma
440
Paleozoic
Silurian
Ludlow
Gorstian
Wenlock
Homerian
Sheinwoodian
Llandovery
Telychian
Aeronian
Rhuddanian
Red Mountain Formation
8.9 Ma
460450
Paleozoic
Ordovician
Late Ordovician
Katian
Sandbian
Middle Ordovician
Darriwilian
Sequatchie Formation
Chickamauga Limestone
Attalla Chert Conglomerate Member
6.0 Ma
500480
Paleozoic
Ordovician
Middle Ordovician
Dapingian
Early Ordovician
Floian
Tremadocian
Cambrian
Furongian
Stage 10
Jiangshanian
Paibian
Series 3
Guzhangian
Drumian
Stage 5
Series 2
Stage 4
Stage 3
Knox Group
Ketona Dolomite
Conasauga Formation
Rome Formation
839.5 Ma
1,5001,4501,400
Mesoproterozoic
Ectasian
Calymmian
unnamed