Trenton Group

Trenton Group
Stratigraphic range: Middle-Upper Ordovician
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Lingulae in Trenton Group limestone from Canada
TypeGroup
Sub-units
  • Hillier Limestone, Dolgeville Limestone
  • Steuben Limestone
  • Denley Limestone
  • Sugar River Limestone
  • Glens Falls Limestone
  • Kings Falls Limestone
  • Napanee Limestone
  • Neuville Formation
  • Selby Limestone
UnderliesMedina Group
OverliesBlack River & Plattin Formation
Lithology
PrimaryLimestone
OtherChert
Location
RegionIndiana, Michigan, Ohio, Pennsylvania, Virginia, West Virginia, Ontario
CountryUnited States, Canada
ExtentAppalachia, Midwestern and Southeastern United States
Type section
Named forTrenton Falls, New York
Named byLardner Vanuxem in 1838

The Trenton Group or Trenton Limestone is a geologic group in Kentucky, Michigan, Ohio, New York, Indiana, Pennsylvania, West Virginia, and Ontario. It dates back to the Ordovician period and is primarily composed of limestone. The Trenton Limestone has served as a gas field in several states.

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