Plattin Limestone

Plattin Limestone
Stratigraphic range: Ordovician
TypeFormation
Unit ofBlack River Group
UnderliesKimmswick Limestone, Kope Formation, Lexington Limestone, and Trenton Limestone
OverliesJoachim Dolomite and Pecatonica Formation
Thicknessup to 250 feet in Arkansas[1]
Lithology
PrimaryLimestone
Location
RegionArkansas, Illinois, Missouri
CountryUnited States
Type section
Named forPlattin Creek, Jefferson County, Missouri
Named byEdward Oscar Ulrich[2]

The Plattin Limestone is a Middle Ordovician geologic formation in Arkansas, Illinois, and Missouri.[1] The name was first introduced in 1904 by Edward Oscar Ulrich in his study of the geology of Missouri.[2] A type locality was designated at the mouth of the Plattin Creek in Jefferson County, Missouri, however a stratotype was not assigned. As of 2017, a reference section has not been designated. The name was introduced into Arkansas in 1927, replacing part of the, now abandoned, Izard Limestone.[3]

  1. ^ a b McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 6. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-11.
  2. ^ a b Buckley, E.R.; Buehler, H.A. (1904). "The quarrying industry of Missouri". Missouri Bureau of Geology and Mines. 2nd Series. 2: 11, 280.
  3. ^ Branner, G.C. (1927). Outlines of Arkansas' mineral resources. Bureau of Mines, Manufactures and Agriculture and State Geological Survey.