Pages authored by John B. Patton:

  1. Rock Unit Names / Potsdam Supergroup
    Type locality and use of name: The Potsdam Sandstone was named by Emmons in 1838 (p. 214-217, 230) for Potsdam, St. Lawrence County, N.Y. It was then considered to consist of sandstones lying above primary (Precambrian) rocks.
  2. Ancell Group / St. Peter Sandstone
    Type section and use of name: The St. Peter Sandstone was named by Owen (1847, p. 169-170) for the exposures along the river then called St. Peter (now the Minnesota River) in southern Minnesota.
  3. Black River Group / Plattin Formation
    Type locality and history of name: According to reviews by Templeton and Willman (1963) and Buckley and Buehler (1904, p. 111), the name Plattin was originally proposed, but not published, by E. O. Ulrich for exposures along Plattin Creek, Jefferson County, Mo.
  4. Knox Supergroup / Potosi Dolomite
    Type locality and use of name: The Potosi Dolomite was named for cherty carbonate rocks exposed at Potosi, Washington County, Mo. (Winslow, 1894, p. 331, 351, 355).
  5. Knox Supergroup / Prairie du Chien Group
    Type locality and use of name: The term Prairie du Chien Formation was introduced by Bain (1906, p. 18) to replace “Lower Magnesian” of earlier reports that referred to exposures near Prairie du Chien, Crawford County, Wis., where this unit consists of as much as 300 feet (91 m) of dolomite and sandstone.
  6. Potsdam Supergroup / Mount Simon Sandstone
    Type locality and use of name: In a provisional classification given by Walcott (1914, p. 354), the Mount Simon Sandstone was credited to a manuscript by E. O. Ulrich. General consensus indicates that the name is taken from an escarpment called Mount Simon near Eau Claire, Eau Claire County, Wis.