Whitesburg Formation

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Whitesburg Formation
Stratigraphic range: Ordovician
Type Formation
Sub-unitsFetzer member
Lithology
Primary limestone
Other shale
Location
Region Tennessee, Virginia
Country United States
Type section
Named for Whitesburg, Tennessee
Named byE.O. Ulrich [1]

The Whitesburg Formation is a dark limestone with interbedded shales geologic formation in Tennessee and Virginia. [1] It preserves fossils dating back to the Ordovician period.

Contents

History

The Whitesburg Formation was formally proposed in 1930, though E.O. Ulrich had used the name prior to the formal proposal. [1] The Whitesburg formation was later downgraded to the Whitesburg limestone, and was considered a basal member of the Blockhouse Shale. [2] The Whitesburg Formation was then elevated back to formation status with the Fetzer member assigned as the basal member. [3] The Fetzer is not considered to be a continuous body of rock, and exists in the Whitesburg formation as lenses.

See also

References

  1. 1 2 3 Ulrich, E. O. (1930). "Ordovician trilobites of the family Telephidae and concerned stratigraphic correlations". U.S. National Museum Proceedings. 76: 2. Retrieved 29 June 2018.
  2. ↑ Nueman, Robert B. (1955). "Middle Ordovician rocks of the type Tellico-Sevier belt, eastern Tennessee" (PDF). U.S. Geological Survey Shorter contributions to general geology. 274-F: 149–150. Retrieved 29 June 2018.
  3. ↑ Walker, Kenneth R.; Steinhauff, D. M.; Roberson, K. E. (1992). "Uppermost Knox Group, the Knox unconformity, the Middle Ordovician transition from shallow shelf to deeper basin at Dandridge, Tennessee". Paleosols, paleoweathering surfaces, and sequence boundaries. 21: 13–18.


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