Wilson Ridge Formation is here named in Cleburne Co., AL, and assigned to the Chilhowee Group in AL and GA. Unit consists of orthoquartzite, feldspathic quartzarenite, and silty mudstone. Represents tidal-flat deposits with characteristic cross-bedding, ripple-laminations, and Scolithus burrows. Measures 184 thick at type section. Thickness ranges from 10 to 425 m. Transitionally overlies Nichols Shale and conformably underlies Weisner Formation, both of Chilhowee. Age is Early Cambrian.
Source: GNU records (USGS DDS-6; Reston GNULEX).
The Wilson Ridge Formation of Mack (1980) of the Chilhowee Group is here accepted by the USGS. It overlies the Nichols Formation and underlies the Weisner Formation in the Bill Arp and Rome thrust sheets in GA and AL. Age is Early Cambrian.
Source: GNU records (USGS DDS-6; Reston GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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