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	North Carolina
Country	United States
Type section
Named for	Cid, NC

See also

• Earth sciences portal
• United States portal
• Paleontology portal

• List of fossiliferous stratigraphic units in North Carolina