gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1998.62A.3.18 Highly Negative δ¹³C Values in Organic Carbon in the Mt. Roe #2 Palaeosol: Terrestrial Life at 2.765 Ga? Rye R. Department of Earth and Planetary Sciences, Harvard University, MA 02138, USA 1998 62A 3 1308 1309 Copyright © 1998, The Mineralogical Society 1998