Cid Formation

Cid Formation
Cid Formation
Stratigraphic range: Ediacaran
Type	Formation
Unit of	Albemarle Group
Sub-units	Flat Swamp member, mudstone member
Lithology
Primary	metavolcanic rock, shale, argillite
Other	mudstone
Location
Region	North Carolina
Country	United States
Type section
Named for	Cid, NC

Last updated June 30, 2025

The Cid Formation is a metavolcanic rock and mudstone geologic formation in North Carolina. It consists of a lower unnamed mudstone member with intermittent volcanic flows and the Flat Swamp Member, which is characterized by pyroclastic flows.^[1] It preserves fossils dating back to the Ediacaran period.

References

↑ Stromquist, Arvid A.; Sundelius, Harold W. (1968). "Stratigraphy of the Albemarle Group of the Carolina slate belt in central North Carolina" (PDF). Contributions to stratigraphy: US Geological Survey Bulletin. 1274-B: 5–19.

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.

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[stromquist-1] Stromquist, Arvid A.; Sundelius, Harold W. (1968). "Stratigraphy of the Albemarle Group of the Carolina slate belt in central North Carolina" (PDF). Contributions to stratigraphy: US Geological Survey Bulletin. 1274-B: 5–19.

[1]

Cid Formation

See also

References