TY - RPRT TI - A Coast Mountains provenance for the Valdez and Orca groups, southern Alaska, based on Nd, Sr, and Pb isotopic evidence AU - G. L. Farmer AU - R. Ayuso AU - George Plafker PY - 1993 DO - 10.1016/0012-821x(93)90042-8 UR - https://pubs.usgs.gov/publication/70018220 ID - 70018220 ER -