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Atane Formation

Coordinates: 69°24′N 52°48′W / 69.4°N 52.8°W / 69.4; -52.8
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Atane Formation
Stratigraphic range: Albian-Coniacian
~112–85 Ma
TypeFormation
Sub-unitsSkansen Member
UnderliesKome Formation
OverliesSlibestensfjeldet Formation
Lithology
PrimaryMudstone
OtherSandstone, coal
Location
Coordinates69°24′N 52°48′W / 69.4°N 52.8°W / 69.4; -52.8
Approximate paleocoordinates55°06′N 16°54′W / 55.1°N 16.9°W / 55.1; -16.9
RegionIvnanguit
Country Greenland
ExtentNuussuaq Basin
Atane Formation is located in Greenland
Atane Formation
Atane Formation (Greenland)

The Atane Formation is a geologic formation in Greenland. It preserves fossil insects of Elytrulum multipunctatum,[1] dating back to the Albian to Coniacian stages of the Cretaceous period.[2]

Description

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The carbonaceous mudstones, sandstones and coal seams are interpreted as freshwater lake or swamp deposits representing the vertical aggradation of a subaerial to shallow, limnic floodplain to upper delta plain. There are no indications –neither palynological evidence nor the presence of pyrite– to suggest marine or brackish-water conditions.[2]

See also

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References

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  1. ^ Heer, 1883
  2. ^ a b Atane Formation at Fossilworks.org

Bibliography

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  • Heer, O (1883), "Ueber die fossilen Insekten Grönlands", Flora Fossilis Grönlandica die Fossile Flora Grönlands: 143–148