|Name||Opelika Complex; Auburn Gneiss, Unnamed unit|
|Geologic age||Precambrian to Paleozoic|
Metamorphic > Schist > Mica-schistmedium- to coarse-grained muscovite-biotite schist, locally garnetiferous
|Comments||Printed map has units 'oa' and 'oas' in one description; split them up here.|
Szabo, M.W., Osborne, E.W., Copeland, C.W. Jr., and Neathery, T.L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000.
|Counties||Chambers - Lee - Macon|