Cid Formation
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.
| 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 |  |
| Country |  |
| Type section | |
| Named for | Cid, NC |
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". Archived from the original on 31 July 2014. Retrieved 22 June 2014.
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