Tonoloway Formation

Tonoloway Formation
Stratigraphic range: Pridoli[1]
A Tonoloway limestone "fin" known as Blue Rock, Smoke Hole Canyon, West Virginia
Typesedimentary
UnderliesKeyser Formation
OverliesWills Creek Formation
Thickness250+/-20 m
Lithology
Primarylimestone
Othershale
Location
RegionAppalachian Mountains
ExtentPennsylvania, Maryland, Virginia, West Virginia
Type section
Named forTonoloway Ridge, Rock Ford, WV
Named byE. O. Ulrich, 1911[2]

The Late Silurian Tonoloway Formation is a mapped limestone bedrock unit in Pennsylvania, Maryland, Virginia and West Virginia. The Tonoloway is roughly equivalent to the Salina group that is found to the north and west.

  1. ^ Paleozoic Sedimentary Successions of the Virginia Valley & Ridge and Plateau
  2. ^ Ulrich, E.O., 1911, Revision of the Paleozoic systems: Geological Society of America Bulletin, v. 22, p. 281-680.