Makah Formation--a deep marginal basin sedimentary sequence of Late Eocene and Oligocene age in the northwestern Olympic Peninsula, Washington

Pacific Northwest Tertiary benthic foraminiferal biostratigraphic framework—An overview

“…Continuing stratigraphie studies along the western flank of the Olympic Mountains in pre-Pliocene coastal rocks (Rau, 1973(Rau, , 1975a(Rau, , 1979 have shown that it is difficult to conduct detailed biostratigraphy in these rocks because faunas are sparse and structures are complex (Fig. 1).…”