McDonald, Robert D.; Schrader, Edward L. (1981): Petrology of phenocryst alteration in basalt from DSDP Hole 504B, Costa Rica Rift area, East Pacific Ocean. Geological Society of America (GSA), Boulder, CO, United States, In: Geological Society of America, Southeastern Section 30th annual meeting, 13 (1), 30, georefid:1983-037414