Nena (supercontinent)
Nena, an acronym for
The first concept of the Nena supercontinent originated with the southern regions of proto-Laurentia and the western regions proto-Baltica merging throughout the Proterozoic eon.[3] This concept would eventually be developed to the modern day conceptualization of the Nena supercontinent which includes additions of the Angara, Antarctica, and Siberia landmasses.
Throughout the amalgamation of the microcontinents which would form proto-Nena, several significant geologic processes occurred including orogenesis and continental magmatic accretion. The by-products of these processes can be found numerous regions such as southwest Ontario, northwest British Isles, and Greenland.[3] These by-products include the Marquette Range supergroup and the Moran Lake and lower Aillik groups northwest of the Makkovik orogen. These geologic findings provided a basis for the concept of the Nena supercontinent.
Nena as a continent has been associated with the Sudbury Basin Impact.
References
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- ^ ISSN 0016-786X.
External links