title: Geochemistry. The oldest fossil or just another rock?
authors: Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA. eiler@gps.caltech.edu
authors: John M
authors: JM
authors: Eiler
mesh_terms: D001031:Apatites / Q000032:analysis; D002247:Carbon Isotopes / Q000032:analysis; D005580:Fossils; D019015:Geologic Sediments / Q000737:chemistry*; D006108:Graphite / Q000032:analysis*; D006116:Greenland; D019369:Life
chemical_list: D001031:Apatites; D002247:Carbon Isotopes; D006108:Graphite