Nena (supercontinent)
From Wikipedia, the free encyclopedia
Nena was an ancient minor supercontinent that consisted of the cratons of Arctica, Baltica, and East Antarctica.
Nena formed about 1.8 billion years ago but became part of the global supercontinent Columbia around 1.1 billion years ago.
Nomenclature[edit]
-4500 —
–
-4000 —
–
-3500 —
–
-3000 —
–
-2500 —
–
-2000 —
–
-1500 —
–
-1000 —
–
-500 —
–
0 —
Nena is an acronym that derives from Northern Europe and North America, but in contemporary research is often referred to as Nuna.
Extent[edit]
Nena as a continent has been associated with the Sudbury Basin Impact.
References[edit]
- ^ Campbell, Ian H., Charlotte M. Allen. "Formation of Supercontinents Linked to Increases in Atmospheric Oxygen." Nature. 1 (2008): 554–558.
- Sankaran, A. V., The Supercontinent Medley: Recent Views. Current Science, 25 August 2003.
External links[edit]
Multimedia
In research
|
This geology article is a stub. You can help Wikipedia by expanding it. |