TY - RPRT TI - Characterization of calcium isotopes in natural and synthetic barite AU - E.M. Griffith AU - E.A. Schauble AU - T.D. Bullen AU - A. Paytan PY - 2008 DO - 10.1016/j.gca.2008.08.010 UR - https://pubs.usgs.gov/publication/70032949 ID - 70032949 ER -