Usage:
New Albany Shale (IN*,IL*,KY*)
New Albany Shale of Knobs Group (IL)
[?] New Albany Group (IN*,IL*,KY*)
Subunits:
FORMATION STATUS (alphabetical): Blocher Member (IN*,KY), Camp Run Member (IN*,KY), Clegg Creek Member (IN*,KY), Ellsworth Member (IN), Glen Park Member (IL), Grassy Creek Shale Member (IL) or Grassy Creek Member (KY), Hannibal Member (IN,KY) or Hannibal Shale Member (IL,KY), Louisiana Limestone Member (IL), Morgan Trail Member (IN*,KY), Portwood Member (KY), Saverton Shale Member (IL) or Saverton Member (KY), Selmier Member (IN*,KY) or Selmier Shale Member (IL), Sweetland Creek Shale Member (IL) or Sweetland Creek Member (KY), Sylamore Sandstone Member of New Albany Shale (IL), Three Lick Bed (KY*).
[?] GROUP STATUS (alphabetical): Grassy Creek Shale (IL*), Horton Creek Formation (IL), Sweetland Creek Shale (IL*).
Geologic age:
Middle Devonian to Early Mississippian (Givetian to Kinderhookian)*
Type section, locality, area and/or origin of name:
Exposures at New Albany, Floyd Co., southern IN (Borden, 1874).
AAPG geologic province:
Cincinnati arch*
Illinois basin*
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 ([ ]).