Puneet Varma (Editor)

Warrior Formation

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Type
  
sedimentary

Country
  
United States

Primary
  
Limestone

Named for
  
Warrior Run, Blair County

Region
  
Appalachian Basin

Named by
  
C. Butts, 1918

Underlies
  
Gatesburg Formation

Overlies
  
Pleasant Hill Formation

Thickness
  
250 ft at type sections, 1350 ft in Nittany Arch

Other
  
shale, siltstone, sandstone

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The Cambrian Warrior Formation is a mapped limestone bedrock unit in Pennsylvania.

Contents

Description

The Warrior Formation is described by Berg and others as gray, thin- to medium-bedded, fossiliferous, cyclic limestone bearing stromatolites, interbedded with shale, siltstone, and sandstone.

Fossils

  • Trilobites, including Crepicephalus, Cedaria, and Llanoaspidella
  • Brachiopods
  • Cryptozoon, a type of trace fossil
  • Stromatolites

    • Notable Exposures

  • Type section: Warrior Run, 1 mile east of Williamsburg, Blair County
  • Warrior Creek, east of Warriors Mark, Huntingdon County
  • Section near Waddle, Pennsylvania.

    • Age

    Relative age dating places the Warrior Formation in the middle to late Cambrian.

    References

    Warrior Formation Wikipedia
    (Text) CC BY-SA