Naheola formation (MSPNan;0)

State	Mississippi
Name	Naheola formation
Geologic age	Paleocene
Original map label	Pan
Comments	Secondary unit desrciption from USGS Lexicon website (MS002) and MS010: In MS Fearn Springs removed from Wilcox Group, reduced to member status, and assigned to the top of the Naheola Formation of the Midway Group. This revision changes the Midway-Wilcox boundary in MS. Boundary now placed at the Fearn Springs-Nanafalia contact. Fearn Springs is revised to member status in the Naheola Formation of the Midway Group in MS. Interpreted to be updip facies of the Oak Hill Member in AL. Name remains a useful term because of the mineral deposits exclusive to that facies. (Dockery, 1990).
Primary rock type	sand
Secondary rock type	clay or mud
Other rock types
Lithologic constituents	Major Unconsolidated > Fine-detrital > ClayFine to coarse micaceous sand, kaolin, and bauxitic clay. Unconsolidated > Coarse-detrital > SandFine to coarse micaceous sand, kaolin, and bauxitic clay.
Map references	Moore, William Halsell, 1969, reprinted 1985, Geologic Map of Mississippi, Compiled by Bicker, A. R., Jr., a revision of the geologic map published by the MS Geological Survey in 1945 in cooperation with the USGS, revised from data submitted by Dr. E. E. Russell of MS State University from published reports of the MS Geological Survey and from field revisions, Mercury Maps Inc., Jackson, MS.
Unit references	Moore, William Halsell, 1969, reprinted 1985, Geologic Map of Mississippi, Compiled by Bicker, A. R., Jr., a revision of the geologic map published by the MS Geological Survey in 1945 in cooperation with the USGS, revised from data submitted by Dr. E. E. Russell of MS State University from published reports of the MS Geological Survey and from field revisions, Mercury Maps Inc., Jackson, MS. USGS Geologic Names Lexicon (GEOLEX) [http://ngmdb.usgs.gov/Geolex/] Dockery, D.T., III, 1990, A revision of the Fearn Springs Formation and relocation of the Midway-Wilcox Group boundary in Mississippi, IN Bograd, M.B.E., and Dockery, D.T., III, eds., Geologic mapping in Mississippi; proceedings of the 1989 MISGEOMAP conference: Mississippi Office of Geology Circular, no. 3, p. 21-23.
Geographic coverage	Calhoun - Chickasaw - Choctaw - Kemper - Lauderdale - Noxubee - Oktibbeha - Pontotoc - Webster