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.

Author
Baitis, Karin E. [Browse]
Format
Book
Language
English
Published/​Created
Denver, CO : U.S. Department of the Interior, Bureau of Land Management, National Operations Center, 2015.
Description
1 online resource (iv, 21 pages) : illustrations (some color), maps (some color).

Details

Subject(s)
Author
Issuing body
Publisher
Series
  • Technical note (United States. Bureau of Land Management) ; 447. [More in this series]
  • Technical note ; 447
Notes
  • Title from title screen (viewed on July 13, 2015).
  • "June 2015"--cover.
  • "BLM/OC/ST-15/006+7100"--page [2] of cover.
Bibliographic references
Includes bibliographic references (pages 19-21).
Contents
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
SuDoc no.
I 53.20:447
Tech. report no.
BLM/OC/ST-15/006+7100
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