Title | Chemical Composition Studies of Oregon and Washington Coastal Basalts |
Publication Type | Thesis |
Year of Publication | 1974 |
Authors | Hill, Dale Wayne |
Academic Department | Dept. of Chemistry |
Degree | M.S. |
Pagination | 99 p. |
University | Oregon State University |
City | Corvallis, Or. |
Type of Work | Masters Thesis |
Call Number | OSU Libraries: Internet Resources LD4330 1975 .H5, Digital Open Access |
Keywords | Cape Foulweather Basalt, chemistry, Depoe Bay Basalt, geology, Pack Sack Lookout Basalt, paleosciences, Siletz River Volcanics, theses, Tillamook Volcanics, Umpqua Volcanics |
Notes | Discusses the chemical similarity of coastal basalts to inland formations and speculates on their origins. “The three groups of Miocene basalts from the coast have been shown to be nearly identical chemically to three chemical types defined in the Columbia River Plateau basalts as follows: Depoe Bay Basalt ≡ Lower Yakima Basalt (high and low Mg types), Cape Foulweather Basalt ≡ Frenchman Springs Basalt, and the Basalt of Pack Sack Lookout ≡ Pomona Basalt. Possible models for the origin of these basalts erupted from vents over 500 km apart are also discussed. The Eocene basalts from the Oregon coast are found to be most similar to the basalts from the Hawaiian Islands, whereas the Metchosin Formation basalts on southern Vancouver Island are found to be more similar to ocean ridge tholeiites.” (from the Abstract) The major professor was Roman A. Schmitt. |
URL | https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/b8515r77k |