Chulafinnee Schist of Talladega Group named in Cleburne Co., northeastern AL. Unit consists of 150 m of fine-textured, green, brown, and red schist and phyllite derived from siltstone and sandstone. Weathers to crumbly residuum. Overlies Abel Gap Formation. Age is Paleozoic (Devonian(?) or older).
Source: GNU records (USGS DDS-6; Reston GNULEX).
Age of Chulafinnee listed as late Precambrian.
Source: GNU records (USGS DDS-6; Reston GNULEX).
Age of Chulafinnee Schists of Talladega Group is Devonian. Unit lies structurally higher than Devonian Abel Gap Formation and underlies Lower to Middle Devonian Hillabee Greenstone. Thickness: 50 m.
Source: GNU records (USGS DDS-6; Reston GNULEX).
Consists of light- to dark-greenish-gray, fine- to medium-grained fissile quartz-sericite-chlorite schist; may include thin chlorite phyllite and quartzose phyllite beds and is locally calcareous and intensively sheared. Upper contact with Hillabee Greenstone is gradational. Occurs in northern Piedmont. Age is Early to Middle(?) Devonian.
Source: GNU records (USGS DDS-6; Reston GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).