Researchers Andrew Barth, left, and Devon Brecke collect rocks near Milan Ridge in the Miller Range of the Transantarctic Mountains. A 1.4-billion-year-old chunk of granite found by John Goodge's team has proven to be a valuable piece of evidence linking Antarctica to the western United States as part of an ancient supercontinent.
Photo Credit: John Goodge
Originally uploaded in CLEAN:Teaching Climate and Energy.
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Mar9 11