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  • Insights into Centennial-Scale Salt Marsh Morphodynamics from the Oregon Coast

    Creator:
    Peck, Erin K.
    Abstract:
    Quantification and comparison of morphological changes over the last ~300 y in Oregon salt marshes provide valuable insights into the tectonic, hydroclimatic, and anthropogenic processes shaping this important intertidal zone. Understanding of the rates and drivers of salt marsh change contextualizes intertidal habitats within the sediment routing system (i.e., source...
    Resource Type:
    Dissertation
    Full Text:
    Coast. Abstract approved: ______________________________________________________ Robert A

  • Competing Roles of Sea Level Rise and Sediment Supply on Sediment Accretion and Carbon Burial in Tidal Wetlands; Northern Oregon, USA

    Creator:
    Peck, Erin K.
    Abstract:
    Quantification of contemporary sediment and carbon accumulation within Oregon tidal saline wetlands will: (1) fill a critical knowledge gap, and (2) naturally test without complicating variables whether sea level rise or sediment supply primarily control wetland growth. Here we measure vertical accretion rates and carbon burial rates in three Oregon...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Robert A. Wheatcroft Quantification of contemporary sediment and carbon accumulation

  • A seasonal study of sediment reworking by Neotrypaea californiensis in Yaquina Bay, Oregon

    Creator:
    Fritz, Cara E.
    Abstract:
    A year-long field study was undertaken to investigate the influence of a number of physical and biological factors, specifically temperature, organic carbon content, and shrimp population dynamics on sediment reworking rates by the ghost shrimp Neotrypaea calforniensis. Because of its role as a structuring agent in estuaries along the West...
    Resource Type:
    Masters Thesis
    Full Text:
    approved -----L-------------t--- Robert A. Wheatcroft A year-long field study was undertaken to

  • An X-radiographic study of the October 2000 Po River flood deposit, Italy

    Creator:
    Hunt, Louise
    Abstract:
    During October 2000 the Po River, Italy's largest river, experienced a historically significant flood, producing a deposit on the adjacent prodelta. In December 2000 an event-response study of the deposit was conducted, and during the ensuing 16 months three additional sampling cruises were conducted to study the subsequent evolution of...
    Resource Type:
    Masters Thesis
    Full Text:
    October 2000 Po River Flood Deposit, Italy. Abstract approved Robert A. Wheatcroft During October 2000

  • The impact of physical and biological properties on the erodibility of sediments along the western Adriatic Sea, Italy

    Creator:
    Stevens, Andrew W.
    Abstract:
    During two cruises in February and June of 2003, the erodibility of sediment along the western Adriatic Sea was measured using a "Gust erosion chamber". In addition, the surficial sediment properties were characterized through a suite physical and biological measurements including porosity, grain-size, inorganic carbon, organic carbon and colloidal carbohydrate....
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved Robert A. Wheatcroft During two cruises in February and June of 2003, the erodibility of

  • Role of Extreme Events on Sedimentation in Loon Lake, Oregon Coast Range, USA

    Creator:
    Richardson, Kristin Noel Duckworth
    Abstract:
    Sediment cores were retrieved from a landslide-dammed lake, recording events back to the 5th century AD in a forested, mountainous catchment. These cores provide an opportunity to compare the impacts of known recent perturbations, including floods and timber harvesting with those of the early period of the core, flood, fire,...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________________ Robert A. Wheatcroft Jeff A. Hatten Sediment cores were retrieved from a