| 词条 | Cid Formation |
| 释义 |
| name = Cid Formation | image = | caption = | type = Formation | age = Ediacaran | prilithology = metavolcanic rock, shale, argillite | otherlithology = mudstone | namedfor = Cid, NC | namedby = | region = {{Flag|North Carolina}} | country = {{Flag|United States}} | coordinates = | unitof = Albemarle Group | subunits = Flat Swamp member, mudstone member | underlies = | overlies = | thickness = | extent = | area = | map = | map_caption = }} 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. See also{{Portal|Earth sciences|North Carolina|Paleontology|}}
References1. ^{{cite journal |last1=Stromquist |first1=Arvid A. |last2=Sundelius |first2=Harold W. |title=Stratigraphy of the Albemarle Group of the Carolina slate belt in central North Carolina |journal=Contributions to stratigraphy: US Geological Survey Bulletin |date=1968 |volume=1274-B |pages=5-19 |url=https://pubs.usgs.gov/bul/1274b/report.pdf}}
1 : Ediacaran geology of North Carolina |
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