https://www.usgs.gov/publications/geologic-signature-early-tertiary-ridge-subduction-alaska
A mid-Paleocene to early Eocene encounter between an oceanic spreading center and a subduction zone produced a wide range of geologic features in Alaska. The...
early tertiarygeologicsignatureridgesubduction
https://www.usgs.gov/publications/evidence-proterozoic-and-late-cretaceous-early-tertiary-ore-forming-events-coeur
New 40 Ar/ 39 Ar age spectra on sericite and lead isotope data on tetrahedrite, siderite, galena, bournonite, and stibnite, together with previously published...
late cretaceousearly tertiaryevidenceproterozoicore