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 =