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Savanna Sandstone

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Savanna Formation
Stratigraphic range: Pennsylvanian
TypeFormation
Unit ofnone
UnderliesBoggy Formation
OverliesMcAlester Formation
Thickness1600 feet[1]
Location
RegionArkansas, Oklahoma
CountryUnited States
Type section
Named byJ.A. Taff[2]

The Savanna Sandstone or Savanna Formation is a Pennsylvanian geologic formation in the Ouachita Mountains of Arkansas and Oklahoma. Early descriptions of this unit have considered it to be part of the Coal Measures,[3] part of the Upper or Western Coal Bearing Division,[4] part of the Sebastian Stage,[3] and part of the Cavaniol Group.[5] In 1899, J.A. Taff introduced the Savanna Formation name in his study of the Ouachita Mountains of Oklahoma.[2] The name was introduced into Arkansas in 1907,[6] although in 1950, the interval was renamed the Boggy Formation, while the name "Savanna Formation" replaced the underlying interval consisting of the upper Fort Smith Formation and the lower Paris Shale (both names are now abandoned).[7] The Savanna Formation is informally recognized with two named sub-units in Arkansas: the Charleston and Paris coal beds.[8] Taff assigned the type area to the towns of McAlester and Savanna in Pittsburg County, Oklahoma, however he did not state whether the town of Savanna is the origin of the name. Taff did not designate a stratotype, however, a reference section was designated in 1995 in Pittsburg County, Oklahoma.[9][10]

See also

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References

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  1. ^ McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 24–25.
  2. ^ a b Taff, J.A. (1899). "Geology of the McAlester-Lehigh coal field, Indian Territory". Nineteenth Annual Report of the United States Geological Survey. 3: 437–438.
  3. ^ a b Stevenson, John James (1896). "Notes on the geology of Indian Territory". Transactions of the New York Academy of Sciences. 15: 50–61.
  4. ^ Winslow, A. (1888). "The geology of the coal regions; a preliminary report upon a portion of the coal regions of Arkansas" (PDF). Annual Report of the Geological Survey of Arkansas for 1888. 3.
  5. ^ Drake, N.F. (1897). "A geological reconnaissance of the coal fields of the Indian Territory". Proceedings of the American Philosophical Society. 36: 326–419.
  6. ^ Collier, A.J. (1907). "The Arkansas coal field" (PDF). U.S. Geological Survey Bulletin. 326.
  7. ^ Hendricks, Thomas A.; Parks, Bryan (1950). "Geology of the Fort Smith District, Arkansas" (PDF). U.S. Geological Survey Professional Paper. 221-E.
  8. ^ Haley, Boyd R. (1987). "Resources of low-volatile bituminous coal and semianthracite in west-central Arkansas, 1978" (PDF). U.S. Geological Survey Bulletin. 1632.
  9. ^ Hemlish, LeRoy A. (1995). "Principal reference section (neostratotype) for the Savanna Formation, Pittsburg County, Oklahoma" (PDF). Oklahoma Geology Notes. 55 (6): 204–243.
  10. ^ Hemlish, LeRoy A.; Suneson, Neil H. (1997). "Stratigraphy and resources of the Krebs Group (Desmoinesian), south-central Arkoma Basin, Oklahoma" (PDF). Oklahoma Geological Survey Guidebook. 30: 49.