[Rockhounds] Geologists Find Remnants of Early Earth’s Crust in Canada

[Paul]

Geologists Find Remnants of Early Earth’s Crust in Canada.
http://www.sci-news.com/geology/early-earths-crust-04709.html
https://phys.org/news/2017-03-earth-recyclingits-crust.html
http://www.pbs.org/wgbh/nova/next/earth/remnants-of-earths-original-crust-found-in-canada/
http://www.pbs.org/newshour/rundown/scientists-discovered-4-2-billion-year-old-remnants-earths-first-crust/
http://www.upi.com/Science_News/2017/03/17/Portions-of-Earths-earliest-crust-found-in-Canada/8571489777103/

The paper is:

Jonathan O’Neil & Richard W. Carlson. 2017. Building Archean
cratons from Hadean mafic crust. Science 355 (6330): 1199-1202
doi: 10.1126/science.aah3823
http://science.sciencemag.org/content/355/6330/1199

Yours,

Paul H.