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Filtering by: Creator McKenzie, Donald Remove constraint Creator: McKenzie, Donald Academic Affiliation College of Earth, Ocean, and Atmospheric Sciences Remove constraint Academic Affiliation: College of Earth, Ocean, and Atmospheric Sciences Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • The Effects of the Flow Regime on Stream Channel Form and Processes

    Creator:
    Hempel, Laura A.
    Abstract:
    Numerous studies have explored how alluvial channel size and morphology are adjusted to different sediment and flow conditions, yet we still know very little about how and to what degree the flow regime controls channel form and processes. We use the term ‘channel form’ to refer to the size and...
    Resource Type:
    Dissertation
    Full Text:
    % loss of campsite capacity (e.g., Beus et al., 1993; Hazel, 1993; Howard and Donald, 1981; Kearsley et

  • Magnetotelluric Studies of Tectonic Systems and Volcanic Areas of North America

    Creator:
    Bowles-Martinez, Esteban
    Abstract:
    Magnetotellurics is used in two geologic settings on scales ranging from 1000-km tectonic structures to local features hundreds of meters wide. These areas are the Midcontinent Rift System (MRS) and its related mantle plume in the northern Midwestern United States and Newberry Volcano in central Oregon. The MRS study uses...
    Resource Type:
    Dissertation

  • Spatio-Temporal Patterns of Tree Establishment in the M1 Meadow of the H.J. Andrews Experimental Forest

    Creator:
    Jones, Katherine E.
    Abstract:
    Montane meadows in the Cascade Range of Oregon have been declining due to tree establishment since records began. Montane meadow complexes in the H.J. Andrews Experimental Forest shrank by 60 to 75% from 1949 to 2005, but fine scale temporal and spatial processes of tree establishment in these meadows are...
    Resource Type:
    Masters Thesis
    Full Text:
    McKenzie Bridge station (elev. 450.5 meters, Lat. 44.1781, Long. -122.1156), (http://cdiac.ornl.gov

  • Biotic alteration of oceanic basalt glass

    Creator:
    Drinnan, Megan R.
    Abstract:
    The subsurface microbial biosphere in the igneous oceanic crust has implications for global geochemical cycling, early life on Earth, and the search for life on Mars. Microscopic evidence of a subsurface microbial ecosystem includes biotic alteration textures associated with basaltic glass. The exact conditions in the basaltic layer that make...
    Resource Type:
    Masters Thesis
    Full Text:
    and isolate radioactive and other toxic waste (Donald, 2010). 4 1.2 Environmental