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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:: Redwood Creek, Humboldt County, California Abstract Approved: Redacted for Privacy Dr Frederick J

The quantification of soil mass movements and their relationship to bedrock geology in the Bull Run Watershed, Multnomah and Clackamas Counties, Oregon

Creator:: Schulz, Michael Gerhard
Resource Type:: Masters Thesis

Revegetation-microhabitat relations in the blast zone of Mount St. Helens

Creator:: Gallant, Alisa L.
Abstract:: The Mount St. Helens eruption of May 18, 1980, offered an excellent setting for evaluating early response of ecosystems to disturbance. Prior to the eruption, the area was densely forested with fir, hemlock, and Douglas-fir, and various understory species. During the course of the eruption, hillslopes within a 180 degree...
Resource Type:: Masters Thesis
Full Text:: of Mount St. Helens Redacted for Privacy Abstract approved: Frederick J. Swanson The Mount St

Effects of earthflows on stream channel and valley floor morphology western Cascade Range, Oregon

Creator:: Vest, Sarah B.
Abstract:: Slow moving earthflows (0.1 15 m/yr.) may constrict valley floors and directly impinge on stream channels. Earthflows that move laterally into channels deliver organic and inorganic material to the stream from the earthflow toe. If the amount and particle size of this material is too large to be removed by...
Resource Type:: Masters Thesis
Full Text:: privacy Frederick J. Swanson Slow moving earthflows (0.1 15 m/yr.) may constrict valley floors and

Sediment routing in a small watershed in the blast zone at Mount St. Helens, Washington

Creator:: Smith, Richard D. (Richard Dean), 1950-
Abstract:: A descriptive model of the routing of sediment that was delivered to the study area by the 1980 eruptions of Mount St. Helens has been developed. On hillslopes this sediment was distributed among three major storage compartments: 1) the tephra profile, 2) primary storage, and 3) secondary storage. The most...
Resource Type:: Masters Thesis
Full Text:: : ctedrick J. Swanson A descriptive model of the routing of sediment that was delivered to the study area

Controls on movement of selected landslides in the Coast Range and western Cascades, Oregon

Creator:: Wong, Bernard Bong-Lap
Abstract:: The movement characteristics of five landslides are compared and interpreted based on records of approximately 10-years duration. Condon landslide in the Oregon Coast Range has consistently exhibited brief (1 - 8 days) movement episodes in wet winter months, separated by long periods of no movement. The translatory movement is probably...
Resource Type:: Masters Thesis
Full Text:: . Frederick J. Swanson The movement characteristics of five landslides are compared and interpreted based on

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Creator:: McHugh, Margaret H.
Abstract:: Timber management of coastal watersheds in southwest Oregon has been complicated by the need to protect anadromous fish habitat from accelerated stream sedimentation resulting from management activity. The rugged terrain of the Elk and Sixes River basins is underlain by the complex geological province of the Klamath Mountains, in which...
Resource Type:: Masters Thesis

Mass movement dynamics, geomorphology and their relationship to geology in the North Fork Siuslaw drainage basin, Oregon Coast Range

Creator:: Graham, James Duncan, 1954-
Resource Type:: Masters Thesis

Relations between geology and mass movement features in a part of the East Fork Coquille River watershed, southern Coast Range, Oregon

Creator:: Lane, Jeffrey W.
Abstract:: Various types of mass movement features are found in the drainage basin of the East Fork Coquille River in the southern Oregon Coast Range. The distribution and forms of mass movement features in the area are related to geologic factors and the resultant topography. The Jurassic Otter Point Formation, a...
Resource Type:: Masters Thesis

Fire history, fire regimes, and development of forest structure in the central western Oregon Cascades

Creator:: Weisberg, Peter J.
Abstract:: Fire history and fire regimes were reconstructed for a 450 km² area in the central western Oregon Cascades, using tree-ring analysis of fire scars and tree origin years at 137 sampled clearcuts. I described temporal patterns of fire frequency, severity, and size, and interpreted topographic influences on fire frequency and...
Resource Type:: Dissertation

ScholarsArchive@OSU

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

The quantification of soil mass movements and their relationship to bedrock geology in the Bull Run Watershed, Multnomah and Clackamas Counties, Oregon

Revegetation-microhabitat relations in the blast zone of Mount St. Helens

Effects of earthflows on stream channel and valley floor morphology western Cascade Range, Oregon

Sediment routing in a small watershed in the blast zone at Mount St. Helens, Washington

Controls on movement of selected landslides in the Coast Range and western Cascades, Oregon

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Mass movement dynamics, geomorphology and their relationship to geology in the North Fork Siuslaw drainage basin, Oregon Coast Range

Relations between geology and mass movement features in a part of the East Fork Coquille River watershed, southern Coast Range, Oregon

Fire history, fire regimes, and development of forest structure in the central western Oregon Cascades

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