Ancient rocks yield clues about Earth's earliest crust
Edmonton, Canada (SPX) Jun 01, 2014 - It looks like just another rock, but what Jesse Reimink holds in his hands is a four-billion-year-old chunk of an ancient protocontinent that holds clues about how the Earth's first continents formed. The University of Alberta geochemistry student spent the better part of three years collecting and studying ancient rock samples from the Acasta Gneiss Complex in the Northwest Territories, part of ... more
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