Rhenium and osmium isotopes in black shales and Ni-Mo-PGE-rich sulfide layers, Yukon Territory, Canada, and Hunan and Guizhou provinces, China - Horan, M.F.; Morgan, J.; Grauch, R. I.; Coveney Jr., R.M.; Murowchick, J.B.; Hulbert, L.J. (Geochimica et Cosmochimica Acta, 1994)