An impact melt origin for Earth’s oldest known evolved rocks
Tim E. Johnson, Nicholas J. Gardiner, Katarina Miljković, Christopher J. Spencer, Christopher L. Kirkland, Phil A. Bland & Hugh Smithies Nature Geoscience, Aug 13, 2018 LINK PDF “Earth’s oldest evolved (felsic) rocks, the 4.02-billion-year-old Idiwhaa…