TY - SER AU - Herron,Ellen M. TI - Sea-floor spreading and the cenozoic history of the east-central Pacific U1 - 551.136 23 PY - 1972/// KW - Geology KW - Geología KW - Cenozoic KW - Cenozoico KW - Galápagos N2 - BIB Now: 3744 ER -