TY  - RPRT
TI  - Re - Os isotopic constraints on the origin of volcanic rocks, Gorgona Island, Colombia: Os isotopic evidence for ancient heterogeneities in the mantle
AU  - R.J. Walker
AU  - L.M. Echeverria
AU  - S.B. Shirey
AU  - M.F. Horan
PY  - 1991
DO  - 10.1007/bf00310704
UR  - https://pubs.usgs.gov/publication/70016678
ID  - 70016678
ER  -