[Geology2] Re: Rocky Mountains Originated from Previously Unknown Oceanic Plate

They reference to:

Karin Sigloch, Mitchell G. Mihalynuk, Intra-oceanic subduction shaped the assembly of Cordilleran North America, Nature 496, 50–56 (04 April 2013) doi:10.1038/nature12019

http://www.nature.com/nature/journal/v496/n7443/full/nature12019.html 

From what I understand, they found that almost 2000km deep roots beneath North America stayed without horizontal movement but the continent moved on top of them. 

Thank you for the link.

Sergey D. Sukhotinsky.

http://divergent-boundaries.blogspot.com/

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