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[null,"1.","Record Nr.",null,"UNINA9910703865003321"]
[null,null,"Autore",null,"Baitis Karin E."]
[null,null,"Titolo",null,"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"]
[null,null,"Pubbl/distr/stampa",null,"Denver, CO : , : U.S. Department of the Interior, Bureau of Land Management, National Operations Center, , 2015"]
[null,null,"Descrizione fisica",null,"1 online resource (iv, 21 pages) : illustrations (some color), maps (some color)"]
[null,null,"Collana",null,"Technical note ; ; 447"]
[null,null,"Soggetti",null,"Volcanic ash, tuff, etc - Oregon"]
[{"$nulls":4},"Clay soils - Oregon"]
[{"$nulls":4},"Volcanic eruptions - Oregon"]
[{"$nulls":4},"Volcanic ash, tuff, etc"]
[{"$nulls":4},"Volcanic eruptions"]
[{"$nulls":4},"Clay soils"]
[{"$nulls":4},"Oregon Mount Mazama"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Title from title screen (viewed on July 13, 2015)."]
[{"$nulls":4},"\"June 2015\"--cover."]
[{"$nulls":4},"\"BLM/OC/ST-15/006+7100\"--page [2] of cover."]
[null,null,null,"Nota di bibliografia","Includes bibliographic references (pages 19-21)."]
[null,null,"Nota di contenuto",null,"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"]