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Now showing items 11-20 of 27
Sensing Fluid Pressure During Plucking Events in a Natural Bedrock Channel: Cowpasture River, VA (thesis)
Bedrock river erosion by plucking -- the wholesale removal of bedrock blocks -- is likely the dominant non-glacial driver of incision into topography over both short- and long-term timescales. Engineering and physical/numerical ...
Aptian/Albian Sediment Volume and Accumulation Rates, Alaska North Slope and Beaufort Shelf, from Sequence Stratigraphic Interpretation and Modeling (thesis)
We present a regional sequence-stratigraphic interpretation of the Torok-Nanushuk clinothem in the National Petroleum Reserve of Alaska (NPRA), Alaskan state lands and Beaufort shelf using 2-D seismic reflection data, ...
New Constraints on the Timing, Rate, and Style of Exhumation of the Wood Hills and Pequop Mountains, Elko County, Nevada (thesis)
In this study, zircon (U-Th)/He analysis is used to documents the timing, rate, and style of exhumation of the Wood Hills and Pequop Mountains, which are part of the Ruby Mountains-East Humboldt Range metamorphic core ...
Chronological Persistence of Acropora cervicornis at Coral Gardens, Belize (thesis)
Acropora cervicornis (staghorn coral) is an important framework-building scleractinian coral that dominated many Caribbean reefs throughout the Pleistocene and Holocene. Acropora spp. suffered collapse throughout the ...
Sequence Stratigraphic and Structural Interpretation, Modeling and Restoration in the National Petroleum Reserve in Alaska (NPRA) (thesis)
This thesis examines Mesozoic progradational clinoform sequences, as well as deformation associated with the Brooks Range orogeny in the National Petroleum Reserve in Alaska (NPRA). Brookian, Beaufortian and upper Ellesmerian ...
Dating of Lacustrine molluscan Subfossil Assemblages Using AAR Techniques to Contextualize the Introduction of Zebra Mussels to a Wisconsin Lake
In order to accurately track paleoecological change, researchers must first gain detailed knowledge of respective sample dates and thus the degree of time-averaging among those samples. Understanding the degree of ...
Approximating Meteoric (10)Be Using the Concentration of Acid-Extractable Grain Coatings: A Case Study Tracing Erosion Depth on Dominica, Lesser Antilles (thesis)
Surface process studies on Dominica have emphasized landslide research in order to improve hazard mitigation, but a deficit exists in understanding the general geomorphic processes. The goal of this study is to characterize ...
Estimating Soil Carbon Content of Grazing Lands in Rockbridge County, Virginia Using Statistical and Machine Learning Techniques (thesis)
In recent years, organizations have explored various methods of quantifying soil carbon to document carbon flux or provide economic incentive to farmers utilizing management practices that sequester carbon in their soil. ...
An Experimental Determination of the Incorporation of Trace Metals into Calcite (thesis)
A new experimental method to synthesize calcite crystals via aqueous slow diffusion was used to examine the level of incorporation of six different trace metal (Co, Mn, Pb, Hg, As, Se) contaminants in calcite. The aqueous ...
High Resolution Isotope Sclerochronology Reflects Seasonal Cycle Changes at Rocky Point, Belize Between the Last Interglacial and Present
The last Pleistocene interglacial period is thought to be characterized by warmer temperatures, higher precipitation, higher sea level and lower ice volume than today due to different orbital forcing parameters at that ...