Atane Formation
{{short description|Geologic formation in Greenland}}
{{Infobox rockunit
| name = Atane Formation
| image =
| caption =
| type = Formation
| age = Albian-Coniacian
~{{fossil range|112|85}}
| period = Late Cretaceous
| prilithology = Mudstone
| otherlithology = Sandstone, coal
| namedfor =
| namedby =
| region = Ivnanguit
| country = {{flag|Greenland}}
| coordinates = {{coord|69.4|N|52.8|W|display=inline,title}}
| paleocoordinates = {{coord|55.1|N|16.9|W|display=inline}}
| unitof =
| subunits = Skansen Member
| underlies = Kome Formation
| overlies = Slibestensfjeldet Formation
| thickness =
| extent = Nuussuaq Basin
| area =
| map = {{Location map+ | Greenland
| relief = 1
| width = 250
| places =
{{Location map~ | Greenland
| lat_deg = 69.4
| lon_deg = -52.8
| mark = Green pog.svg
| marksize = 10
}}
}}
| map_caption =
}}
The Atane Formation is a geologic formation in Greenland. It preserves fossil insects of Elytrulum multipunctatum,Heer, 1883 dating back to the Albian to Coniacian stages of the Cretaceous period.[https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Atane&group_formation_member=Atane Atane Formation] at Fossilworks.org
Description
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.
See also
References
{{reflist|2}}
= Bibliography =
- {{citation |last=Heer |first=O |year=1883 |title=Ueber die fossilen Insekten Grönlands |journal=Flora Fossilis Grönlandica die Fossile Flora Grönlands |volume= |pages=143–148}}
Category:Geologic formations of Greenland