TY - RPRT TI - Osmium isotope variations in the oceans recorded by Fe-Mn crusts AU - K.W. Burton AU - B. Bourdon AU - J.-L. Birck AU - C.J. Allegre AU - J.R. Hein PY - 1999 DO - 10.1016/s0012-821x(99)00139-9 UR - https://pubs.usgs.gov/publication/70021822 ID - 70021822 ER -