The Oranda Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.

This nomenclature is not in current usage. It has been reallocated to Stickley Run Member of the Martinsburg Formation and Edinburg Formation in Virginia and West Virginia, and to the Martinsburg and Chambersburg Formation in Pennsylvania.[2]

See also

References

  1. ^ Cooper, Byron N.; Cooper, G. Arthur (1946). "Lower Middle Ordovician Stratigraphy of the Shenandoah Valley, Virginia". Bulletin of the Geological Society of America. 57: 35–114.
  2. ^ Oranda, USGS National Geologic Map Database, Geolex — Unit Summary. Last Modified: Wed 31 May 2023.


Allikas: https://en.wikipedia.org/wiki/Oranda_Formation
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