Cid Formation
From Wikipedia, the free encyclopedia
TypeFormation
Unit ofAlbemarle Group
Sub-unitsFlat Swamp member, mudstone member
Primarymetavolcanic rock, shale, argillite
| 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 |
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.
