Four-Billion-Year-Old Rocks Yield Clues About Earth's Earliest Crust.

[Oxytropidoceras]

Four-billion-year-old rocks yield clues about Earth's

earliest crust. ScienceDaily, University of Alberta

http://www.sciencedaily.com/releases/2014/05/140529112057.htm

News360 at http://news360.com/article/241073278 ; and

Ancient rocks yield clues about Earth's earliest crust

by Bryan Alary, University of Alberta, May 28, 2014

http://news.ualberta.ca/newsarticles/2014/may/ancient-rocks-yield-clues-about-earths-earliest-crust

Reimink, J. R., T. Chacko, R. A. Stern, L. M. Heaman,

2014, Earth’s earliest evolved crust generated in an

Iceland-like setting. Nature Geoscience. Published

online May 25, 2014 10.1038/ngeo2170

http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2170.html

yours,

Paul H.