Search Constraints

Start Over
Filtering by: Alternative title ssim Geology of Hug Point State Park, northern Oregon Coast Remove constraint Alternative title ssim: Geology of Hug Point State Park, northern Oregon Coast Decade 1980-1989 Remove constraint Decade: 1980-1989 Degree Field Geology Remove constraint Degree Field: Geology Peer Reviewed No Remove constraint Peer Reviewed: No

Search Results

  • Geochemical evolution of the Roseburg formation basaltic rocks, southern Oregon coast range

    Creator:
    Pyle, Douglas G.
    Abstract:
    The Paleocene-lower Eocene volcanic rocks of the southern Oregon Coast Range Roseburg Formation are the oldest remnant eruptive sequence of an oceanic islandseamount province which is presently exposed along a north-south lineament that stretches from Vancouver, B.C. into southwestern Oregon. This seamount terrane is thought to have formed on the...
    Resource Type:
    Masters Thesis
    Full Text:
    rocks, southern Oregon coast range AN ABSTRACT OF THE THESIS OF Douglas G. Pyle for the degree of

  • Stratigraphy and sedimentary petrology of the Mascall Formation, eastern Oregon

    Creator:
    Kuiper, John L.
    Abstract:
    The type section of the Mascall Formation, which is located in the John Day Valley, is interpreted to represent a sequence of paleosols. These fossil soils were formed on a floodplain during the middle Miocene. The measured thickness of this section is 1340 feet, and although the top of the...
    Resource Type:
    Masters Thesis
    Full Text:
    submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master

  • Flood history and sedimentation at the mouth of Redwood Creek, Humboldt County, California

    Creator:
    Ricks, Cynthia L.
    Abstract:
    Since the early 1950's, the distribution of sediment at the mouth of Redwood Creek has been altered by the effects of channel aggradation and channelization along the lower reach. Severe flooding in 1953, 1955, and 1964 caused bank erosion, landsliding, and channel geometry changes along Redwood Creek. The increased sediment...
    Resource Type:
    Masters Thesis
    Full Text:
    1653. Ken Scheidegger, School of Oceanography and Alan and Wendy Niem, Department of Geology, Oregon

  • Alteration and vein mineralization, Schwartzwalder uranium deposit, Front Range, Colorado

    Creator:
    Wallace, Alan R.
    Abstract:
    The Schwartzwalder uranium deposit, in the Front Range west of Denver, Colorado, is the largest vein-type uranium deposit in the United States. The deposit is situated in a steeply dipping fault system that cuts Proterozoic metamorphic rocks. The host rocks represent a submarine volcanic system with associated chert and iron-...
    Resource Type:
    Dissertation
    Full Text:
    THESIS submitted to Oregon State University in Dartial fulfillment of the requirements for the degree

  • The effects of the Mazama tephra-falls : a geoarchaeological approach

    Creator:
    Matz, Stephan E.
    Abstract:
    About 7,000 years ago two major tephra-falls blanketed the Pacific Northwest in volcanic ash. These two tephra-falls, identified as the Llao and climatic tephra-falls, were a part of the eruptive events that led up to the collapse of Mount Mazama to form Crater Lake in the southern Oregon Cascades. The...
    Resource Type:
    Masters Thesis
    Full Text:
    in the ecosystem. This state factor is used to define the specific point in time and duration of