Gray clay (Malpass clay) in the west Eugene Wetlands and the Willamette Valley is weathered and redeposited ash from Mount Mazama / / authors: Karin E. Baitis, Gregory J. Retallack, Michael E. James

• Autore: Baitis Karin E.
• Pubblicazione: Denver, CO : , : U.S. Department of the Interior, Bureau of Land Management, National Operations Center, , 2015
• Descrizione fisica: 1 online resource (iv, 21 pages) : illustrations (some color), maps (some color)
• Soggetto topico: Volcanic ash, tuff, etc - Oregon; Clay soils - Oregon; Volcanic eruptions - Oregon; Volcanic ash, tuff, etc; Volcanic eruptions; Clay soils
• Soggetto geografico: Oregon Mount Mazama
• Persona (resp. second.): RetallackGreg J <1951-> (Greg John); JamesMichael E.
• Note generali: Title from title screen (viewed on July 13, 2015).; "June 2015"--cover.; "BLM/OC/ST-15/006+7100"--page [2] of cover.
• Nota di bibliografia: Includes bibliographic references (pages 19-21).
• Nota di contenuto: Abstract--Introduction--Geologic setting of Malpass clay and Dayton soil--Material and methods--Stratigraphic position of the gray clay in the west Eugene wetlands--Chromatography--Vertic soil and gilgai relief--X-ray diffraction--Transmission electron microscope EDX analyses--Transmission electron microscope images--Mineralogy of gray clay unit--Radiometric ages--Palynology--Conclusions--References
• Altri titoli varianti: Gray clay
• Titolo autorizzato: Gray clay (Malpass clay) in the west Eugene Wetlands and the Willamette Valley is weathered and redeposited ash from Mount Mazama
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910703865003321
• Lo trovi qui: Univ. Federico II