Brady, Robert and Wernicke, Brian and McNutt, Marcia and Mutter, John and Correa, Gustavo (2000) Results of the Basin and Range Geoscientific Experiment (BARGE): A marine-style seismic reflection survey across the eastern boundary of the central Basin and Range Province. Geochemistry, Geophysics, Geosystems, 1 (9). 2000GC000078. ISSN 1525-2027 http://resolver.caltech.edu/CaltechAUTHORS:BRAggg00
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Approximately 120 km of marine-style deep seismic reflection data were shot during a survey on the waters of Lake Mead in southeastern Nevada. The survey extends from near the abrupt eastern edge of the Basin and Range Province (BRP) to a point ~80 km into the extended domain. Data quality throughout the survey ranged from fair to poor; the recorded data include significant towing noise and occasionally problematic diffractions and sideswipe from canyon walls. The upper 2–4 s of the data shows well-defined reflections from sedimentary fill, but below that point, reflectivity is weak. Lower crustal reflectivity is generally absent under the eastern part of the survey, with a slight increase in reflectivity to the west. The reflection Moho appears as a series of weakly defined, discontinuous reflections, most of which occur at 10–11 s. A particularly interesting feature of the data set is the relative lack of reflectivity from the lower crust, which is a region of strong reflectivity on other seismic reflection data sets from the BRP.
|Additional Information:||Copyright 2000 by the American Geophysical Union. Received April 21, 2000; Revised July 28, 2000; Accepted August 18, 2000; Published September 22, 2000.|
|Subject Keywords:||Seismic; tectonics; extension; Tertiary; Nevada; Arizona; Marine seismics; continental crust; continental tectonics–extensional; North America|
|Official Citation:||Brady, R., B. Wernicke, M. McNutt, J. Mutter, and G. Correa, 2000. Results of the Basin and Range Geoscientific Experiment (BARGE): A marine-style seismic reflection survey across the eastern boundary of the central Basin and Range Province, Geochem. Geophys. Geosyst., vol. 1, Paper number 2000GC000078|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||19 Dec 2005|
|Last Modified:||26 Dec 2012 08:42|
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