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Browsing Geological Sciences and Engineering - Faculty Research by Type "Article"
Now showing items 1-20 of 77
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3D geophysical inversion modeling of gravity data to test the 3D geologic model of the Bradys geothermal area, Nevada, USA
(2016)Three-dimensional geophysical inversion modeling of gravity data has been performed to test the validity of a 3D geologic model constructed for the Bradys geothermal area. Geophysical modeling was implemented in three ... -
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A comparison of strain rates and seismicity for Fennoscandia: depth dependency of deformation from glacial isostatic adjustment
(2015)We investigate the influence of the glacial isostatic adjustment (GIA) on the deformation at the surface and at seismogenic depths in Fennoscandia. The surface strain rate field, derived from geodetic data, is controlled ... -
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A Geodetic Strain Rate Model for the East African Rift System
(2018)Here we describe the new Sub-Saharan Africa Geodetic Strain Rate Model v.1.0 (SSA-GSRM v.1.0), which provides fundamental constraints on long-term tectonic deformation in the region and an improved seismic hazards assessment ... -
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A lattice grain model of hillslope evolution
(2018)This paper describes and explores a new continuous-time stochastic cellular automaton model of hillslope evolution. The Grain Hill model provides a computational framework with which to study slope forms that arise from ... -
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A magma mixing redox trap that moderates mass transfer of sulphur and metals
(2017)Mixing and juxtaposition of chemically distinct magmatic systems are key processes for the evolution of Earth's crust. Yet, the physicochemical nature at mixing interfaces remains poorly described, as crystallisation, ... -
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A paleoseismic transect across the northwestern Basin and Range Province, northwestern Nevada and northeastern California, USA
(2017)We use new and existing data to compile a record of similar to 18 latest Quaternary large-magnitude surface-rupturing earthquakes on 7 fault zones in the northwestern Basin and Range Province of northwestern Nevada and ... -
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A Robust Estimation of the 3-D Intraplate Deformation of the North American Plate From GPS
(2018)Glacial isostatic adjustment (GIA) is the main cause of deformation in intraplate North America. Here we use up to 3,271 Global Positioning System station velocities to image this 3-D deformation across the entire plate. ... -
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Assessing the impact of vertical land motion on twentieth century global mean sea level estimates
(2016)Near-global and continuous measurements from satellite altimetry have provided accurate estimates of global mean sea level in the past two decades. Extending these estimates further into the past is a challenge using the ... -
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Assimilation of temperature and hydraulic gradients for quantifying the spatial variability of streambed hydraulics
(2016)Understanding the spatial and temporal characteristics of water flux into or out of shallow aquifers is imperative for water resources management and eco-environmental conservation. In this study, the spatial variability ... -
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Biogeochemical and microbial seasonal dynamics between water column and sediment processes in a productive mountain lake: Georgetown Lake, MT, USA
(2016)This manuscript details investigations of a productive, mountain freshwater lake and examines the dynamic relationship between the chemical and stable isotopes and microbial composition of lake bed sediments with the ... -
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Characterizing the Quaternary expression of active faulting along the Olinghouse, Carson, and Wabuska lineaments of the Walker Lane
(2017)The northern Walker Lane (southwestern USA) accommodates similar to 5-7 mm/yr of right-lateral Pacific-North America relative plate motion. The northwest trend of major right-lateral faults in the Walker Lane is interrupted ... -
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Climatic and societal impacts of a volcanic double event at the dawn of the Middle Ages
(2016)Volcanic activity in and around the year 536 CE led to severe cold and famine, and has been speculatively linked to large-scale societal crises around the globe. Using a coupled aerosol-climate model, with eruption parameters ... -
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Comment on "Low time resolution analysis of polar ice cores cannot detect impulsive nitrate events"
(2016)Smart et al. (2014) suggested that the detection of nitrate spikes in polar ice cores from solar energetic particle (SEP) events could be achieved if an analytical system with sufficiently high resolution was used. Here ... -
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Continental rupture and the creation of new crust in the Salton Trough rift, Southern California and northern Mexico: Results from the Salton Seismic Imaging Project
(2016)A refraction and wide-angle reflection seismic profile along the axis of the Salton Trough, California and Mexico, was analyzed to constrain crustal and upper mantle seismic velocity structure during active continental ... -
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Conversion of a Semiarid Nevada Soil to Irrigated Agriculture Preferentially Removes Labile Carbon
(2018)Due to the scarcity of arable land, semiarid rangelands are often converted to irrigated croplands, which is likely to affect soil organic carbon (SOC) due to changes in C inputs into the soil and environmental factors ... -
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Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Roberts Mountains allochthon: New insights into the early Paleozoic tectonics of western North America
(2016)Detrital zircon U-Pb geochronology and Hf isotope geochemistry provide new insights into the provenance, sedimentary transport, and tectonic evolution of the Roberts Mountains allochthon strata of north-central Nevada. ... -
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Discovery of alunite in Cross crater, Terra Sirenum, Mars: Evidence for acidic, sulfurous waters
(2016)Cross crater is a 65 km impact crater, located in the Noachian highlands of the Terra Sirenum region of Mars (30 degrees S, 158 degrees W), which hosts aluminum phyllosilicate deposits first detected by the Observatoire ... -
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Distributed north-vergent shear and flattening through Greater and Tethyan Himalayan rocks: Insights from metamorphic and strain data from the Dang Chu region, central Bhutan
(2017)In several places in the Himalaya, there are debates over the location of and defining criteria for the South Tibetan detachment (STD) system. Here, we attempt to resolve this debate in central Bhutan by interpreting ... -
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Effects of Partial Replacement of Corn with Glycerin on Ruminal Fermentation in a Dual-Flow Continuous Culture System
(PLoS ONE, 2015)The objective of this study was to evaluate the effects of partially replacing dry ground corn with glycerin on ruminal fermentation using a dual-flow continuous culture system. Six fermenters (1,223 +/- 21 ml) were used ... -
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End-member identification and spectral mixture analysis of CRISM hyperspectral data: A case study on southwest Melas Chasma, Mars
(2016)We present spectral unmixing results over the southwest Melas Chasma region, where a variety of hydrated minerals were identified. We use the Discrete Ordinate Radiative Transfer radiative transfer model to simultaneously ...