Nena (supercontinent)

U–Pb ages of 5246 concordant detrital zircons from 40 of Earth's major rivers (Nena is referred to as Nuna)

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 billions of years ago.

Nomenclature

Nena is an acronym that derives from Northern Europe and North America, but in contemporary research is often referred to as Nuna.

Extent

Nena as a continent has been associated with the Sudbury Basin Impact.

References

• Sankaran, A. V., The Supercontinent Medley: Recent Views. Current Science, 25 August 2003.

External links

Multimedia

• Sudbury Impact and Nena
• Sudbury Basin & Alberta Tarsands
• Sudbury Basin

In research

• Referred to as Nuna