McKenzie Formation

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
McKenzie Formation
Stratigraphic range: Ludfordian[1]
TypeFormation
UnderliesWilliamsport Formation
OverliesRochester Shale
Location
RegionWest Virginia
CountryUnited States

The Silurian McKenzie Formation is a mapped bedrock unit in Maryland.[2]

Description

[edit | edit source]

The McKenzie Formation is a gray, thin-bedded shale and argillaceous limestone, with interbedded red sandstone and shale in its eastern extents in Maryland. The thickness ranges from 160 to 380 feet.[2] It houses shallow water fauna including but not limited to brachiopods, Ostracods, and tentaculitids.

Relative age dating of the Tuscarora places it in the Silurian period. It rests conformably atop the Clinton Group and conformably below the Bloomsburg Formation.[2]

References

[edit | edit source]
  1. ^ Paleozoic Sedimentary Successions of the Virginia Valley & Ridge and Plateau
  2. ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).