Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Sandstone
|Comments||Ridge and Valley sedimentary rocks. Secondary unit description from USGS Geologic Names lexicon (ref. GA003): Sandy shales, sandstones, and quartzites, 2000 to 3500 ft thick, overlying Coosa shales and underlying Connasauga shale (note spelling). At base several hundred feet of highly indurated greenish sandy shale, succeeded upward by great thickness of purple or reddish-brown sandstones intercalated with white sandstones or quartzite (Weisner quartzite). Upper part of formation consists of highly colored shales.|
Lawton, D.E., Moye, F.J., Murray, J.B., O'Connor, B.J., Penley, H.M., Sandrock, G.S., Marsalis, W.E., Friddell, M.S., Hetrick, J.H., Huddlestun, P.F., Hunter, R.E., Mann, W.R., Martin, B.F., Pickering, S.M., Schneeberger, F.J., and Wilson, J.D., 1976, Geologic Map of Georgia, Georgia Dept. of Natural Resources, Geologic and Water Resources Division, Georgia Geological Survey. Scale 1:500,000.
USGS Geologic Names lexicon found at: http://ngmdb.usgs.gov/Geolex/
|Counties||Bartow - Catoosa - Chattooga - Floyd - Gordon - Murray - Polk - Walker - Whitfield|