Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"Basin and Range Province"”.
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Crustal structure and evolution beneath the Colorado Plateau and the southern basin and range province
… P-to-S receiver functions recorded at 72 USArray and other broadband seismic stations placed on the Colorado Plateau and the SBRP in Arizona revealed systematic spatial variations in crustal Vp/Vs, crustal thickness and amplitude of P-to-S converted phases. Our results reveal that the BRP is …
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Three-dimensional magnetotelluric modeling and inversion with applications to the California Basin and Range Province
… of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1991.
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Style of volcanism and extensional tectonics in the eastern Basin and Range Province: Northern Mohave County, Arizona
… boundary of the extensional allochthon in the Basin and Range Province and the eastern limit of exposure of mid-Tertiary igneous rocks at the latitude of Lake Mead. The upper plate of this fault system is exposed only in the northern White Hills, Mohave County, Arizona. The upper plate contains …
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Structural Controls of the San Emidio Geothermal System, Northwestern Nevada
… geologic analyses integrated with geophysical and well data have provided insight into the kinematics, stress state, and structural controls of the San Emidio geothermal system. San Emidio lies within the Basin and Range province of northwestern Nevada, ~100 km north-northeast of Reno. The San …
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Depositional history of the Black Mountain conglomerate, Mohave County, Arizona: Sedimentary response to Miocene extension
This study documents the Miocene depositional and extensional history for the area west of Wilson Ridge in the Black Mountains, northwestern Arizona. The field area, part of the Basin and Range province, lies within an area that experienced northward migration of intense volcanism several million …
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Estimating effective discharge at Lehman Creek, Great Basin National Park, Nevada
… that transports the most sediment over time and is therefore the flow that controls channel shape. Effective discharge was estimated for two sites along Lehman Creek, an alpine fluvial system. Site one (WL-1, 2951 m elevation) has an effective discharge of 0.083 m3/s and site two (WL-2, 2019 …
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Characterization of a blind geothermal prospect through LiDAR analysis and shallow temperature survey, Gabbs Valley, Nye and Mineral Co., NV
… is located in west-central Nevada within the Basin and Range province at the transition between NW directed dextral shear in the Walker Lane and WNW-ESE extension in the Basin and Range. The tectonics at the prospect site were investigated using Quaternary fault mapping from LiDAR and low …
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Structural Controls of the MacFarlane Geothermal System, Humboldt County, Nevada: New Insights Based on Detailed Geologic Mapping, Shallow Temperature Surveys, and Magnetic Data
… geologic mapping, structural analysis, magnetic and two-meter temperature data, integrated with previous datasets, constrain the structural controls of the MacFarlane geothermal system. MacFarlane hot springs and the travertine fissure ridges lie within a relay ramp. The relay ramp is formed …
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Biogeography of Montane Mammals on the Colorado Plateau and Adjacent Regions
… communities on mountains of the Colorado Plateau and adjacent regions. Forty six isolated ranges were characterized across a 5-state study area encompassing the Colorado Plateau, including the central high plateaus of Utah and the Basin and Range Province (i.e. the Great Basin and mountains of …
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Geologic Mapping along the Benton Spring Fault, Nevada: Dextrally-offset Tuff-filled Paleovalleys in the Central Walker Lane
… faults, straddles the western edge of the Basin and Range Province and the eastern edge of the Sierra Nevada. In the Gabbs Valley Range, central Nevada, eastern Central Walker Lane, I combine new mapping, geochronology, and structural studies to document the geometry and timing of dextral …
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The Role of Magmatism in the Catalina Metamorphic Core Complex, Arizona: Insights from Integrated Thermochronology, Gravity and Aeromagnetic Data
… footwall of the Catalina MCC located within the Basin and Range Province has been intruded by several magmatic suites. Samples were collected from the Wilderness suite sills, the most voluminous suite. U/Pb data from zircon indicate that the Wilderness suite sills were emplaced during two …
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Geology, Petrology, and Tectonic Setting of the Mafic Rocks of the 1480 MA Old Granite-Rhyolite Terrane of Missouri, USA
Igneous and metamorphic mafic rocks form a volumetrically subordinate component of the 1480 Ma old granite-rhyolite terrane of Missouri. The igneous rocks are present in the St. Francois Mountains and a drillcore from Shannon county and can be subdivided into two groups. The Silver Mines Mafic …
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Syntectonic deposition and paleohydrology of the spring-fed Hualapai Limestone and implications for 5-6 MA integration of the Colorado River system through Grand Canyon : evidence from sedimentology, geochemistry and detrital zircon analysis
… available for 12 to 6 Ma at the mouth of the Grand Canyon. Because it directly underlies the first Colorado River gravels, this unit is a key element for understanding the integration of the Colorado River from the Colorado Plateau to the Basin and Range province, and the early paleogeography of …
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Surface Offset and Slip Rates for the Winter Rim Fault System in the Summer Lake Basin, Oregon
… Fault (WRF) system, located in the northwestern Basin and Range Province, encompasses several Holocene fault scarps within the Summer Lake basin that include the WRF system, a normal fault divided into three segments: Slide Mountain (SMF), Winter Ridge, and Ana River (ARF), and the newly-mapped …
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Unresolved Problems Involving the Hydrogeology and Sequence Stratigraphy of the Wasatch Plateau based on Mapping of the Wattis 7.5 Minute Quadrangle, Carbon and Emery Counties, Utah: Insights Gained from a New Geologic Map
… central Utah, in the transition zone between the Basin and Range province and the Colorado plateau. Two small grabens, located in the quadrangle, are the easternmost evidence of Basin and Range faulting. Sedimentary units exposed are mainly Cretaceous in age and deposited in the Western Cretaceous …
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EASTERN BASIN AND RANGE CRUSTAL EXTENSION: A VIEW FROM SEISMOLOGY AND GEODESY
… the crustal structure of the eastern Basin and Range Province in the western United States and its relationship with the present-day extensional regime governing this region. The use of combined results from different geophysical methods provide a better understanding of the subsurface …
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PETROLOGIC AND GEOCHEMICAL ANALYSIS OF INTERMEDIATE TO MAFIC MAGNETITE-BEARING VOLCANIC FLOWS AND ASSOCIATED DIKES IN THE KNIGHT RANGE, GRANT COUNTY, NEW MEXICO
<p>The Knight Range of southwestern Grant County, New Mexico, is made up of a northeast-dipping package of Cretaceous-Tertiary volcanic, volcaniclastic, and sedimentary units. It is located in the Burro Uplift, south of the Tyrone mining district, at the intersection of the Mogollon-Datil volcanic …
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Interpretation of aeromagnetic, magnetic, and gravity data from the San Francisco Mountains vicinity, southwestern Utah
Regional and local geologic structures in the San Francisco Mountains vicinity, southwestern Utah, are investigated using magnetic-field intensity and gravimetric data. Aeromagnetic data are interpreted to indicate a buried Tertiary pluton whose northern boundary runs from east to west across the …
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Interoperability between the StraboSpot graph database and GIS software– A Malpais Mesa Use Case
… basemaps, the burdensome task of digitizing handwritten field notes and maps back in the office is eliminated, and the use of global positioning systems (GPS) has led to more precisely located observations. Despite the numerous advantages of using GIS in the field geosciences, the lack of …
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Towards using seismic anisotropy to interpret ductile deformation in mafic lower crust
… geodynamic control in continental tectonics and the communication and coupling of kinematics between surface and deep-Earth processes. An understanding of the relationship between seismic properties, finite strain and fabric orientation thus provides a useful tool in the remote sensing and …
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