TY - RPRT TI - Comparative 187Re-187Os systematics of chondrites: Implications regarding early solar system processes AU - R.J. Walker AU - M.F. Horan AU - J. W. Morgan AU - H. Becker AU - J. N. Grossman AU - A.E. Rubin PY - 2002 DO - 10.1016/s0016-7037(02)01003-7 UR - https://pubs.usgs.gov/publication/70023885 ID - 70023885 ER -