Now showing items 1-10 of 158
Global prediction of abyssal hill roughness statistics for use in ocean models from digital maps of paleo-spreading rate, paleo-ridge orientation, and sediment thickness
(Elsevier, 2010)
Abyssal hills are the dominant small-scale roughness fabric over much of the ocean floor. Created at midocean
ridges by combined volcanic and tectonic processes, they are rafted away by plate spreading and
modified through ...
Evaluation of Land Snails for Clumped Isotope Paleothermometry: A Case Study of the Pleistocene of Bermuda
(2013-06-19)
With the advent of clumped isotope analyses, sources of data that were previously not of use in determining paleoenvironment may become valuable proxies for the reconstruction of past Earth surface temperatures. Land snails, ...
Variable Hf-Sr-Nd Radiogenic Isotopic Compositions in a Saharan Dust Storm over the Atlantic: Implications for Dust Flux to Oceans, Ice Sheets and the Terrestrial Biosphere
(2013-01-16)
Isotopic characterization of aerosol mineral particles (atmospheric dust) of varying sizes is essential in classifying source areas, and for determining the source of dust deposited over oceans and icesheets. However, the ...
P-wave velocity of weathering profiles from a basalt climosequence: Implications for weathering on the mechanical properties of the critical zone
(2016-01-20)
We characterize the critical zone structure across a basaltic climosequence in Kohala, Hawaii from shallow seismic refraction data. First-arrival P-waves surveys were tomographically inverted from an active source to create ...
Assessing the role of the San Andreas fault in controlling the spatial distribution of erosion rates in the Transverse Ranges, Southern California
(2013-05-17)
In considering erosion rate controls, previous work has focused primarily on the geomorphic factors; here tectonic controls, particularly seismic shaking, are additionally considered, given the growing recognition that ...
Characterization of the Interactions between Shale Cementation and Fracture Pump Resistance, and the Subsequent Contributions to Air Emissions from Eagleford Shale Hydraulic Fracturing Operations
(2013-01-16)
Natural gas is the fastest growing primary energy fuel, with demand increasimg more rapidly than any other energy source. With advances in horizontal drilling and hydraulic fracturing, shale formations have become an ...