Brian D Rodriguez (Former Employee)
Science and Products
Filter Total Items: 19
No Result Found
Filter Total Items: 70
Magnetotelluric survey to locate the Archean/Proterozoic suture zone in north-central Elko County, Nevada
No abstract available.
Authors
Jackie M. Williams, Brian D. Rodriguez
Magnetotelluric data in the Espanola Basin, west of Santa Fe, New Mexico
No abstract available.
Authors
Jackie M. Williams, Brian D. Rodriguez
The Loma Prieta, California, Earthquake of October 17, 1989 - Geologic setting and crustal structure
Although some scientists considered the Ms=7.1 Loma Prieta, Calif., earthquake of 1989 to be an anticipated event, some aspects of the earthquake were surprising. It occurred 17 km beneath the Santa Cruz Mountains along a left-stepping restraining bend in the San Andreas fault system. Rupture on the southwest-dipping fault plane consisted of subequal amounts of right-lateral and reverse motion but
Authors
Ray E. Wells
Magnetotelluric data in the Southwest Espanola Basin, northern New Mexico
No abstract available.
Authors
Jackie M. Williams, Brian D. Rodriguez
Magnetotelluric data release across the Hubbell Springs fault area, Middle Rio Grande Basin, New Mexico
No abstract available.
Authors
Jackie M. Williams, Brian D. Rodriguez
Magnetotelluric data release for locating the Archean/Proterozoic suture zone, east-central Tooele County, Utah
Many sediment-hosted gold deposits occur along linear trends in the Great Basin. The distribution and genesis of these deposits in the Great Basin is not fully understood. In general, most models agree that regional structures played an important role in the spatial distribution of these deposits (e.g. Arehart and others, 1993; Ilchik and Barton, 1997; Radtke, 1985; Shawe, 1991; Sillitoe and Bonha
Authors
Jackie M. Williams, Brian D. Rodriguez
Geophysical and isotopic constraints on crustal structure related to mineral trends in north-central Nevada and implications for tectonic history
We combined information from Sr and Pb isotope data and magnetotelluric models to develop a new magnetic and gravity interpretation of the crustal structure of north-central Nevada to better understand the origin of mineral trends. The new interpretation suggests a crustal structure that is composed of Precambrian continental crust, transitional crust, and primarily oceanic crust that are separate
Authors
V. J. S. Grauch, B. D. Rodriguez, J. L. Wooden
Evidence for a Battle Mountain-Eureka crustal fault zone, north-central Nevada, and its relation to Neoproterozoic-Early Paleozoic continental breakup
Combined evidence from gravity, radiogenic isotope, and magnetotelluric (MT) data indicates a crustal fault zone that coincides with the northwest-trending Battle Mountain-Eureka (BME) mineral trend in north-central Nevada, USA. The BME crustal fault zone likely originated during Neoproterozoic-Early Paleozoic rifting of the continent and had a large influence on subsequent tectonic events, such a
Authors
V. J. S. Grauch, B. D. Rodriguez, V. Bankey, J. L. Wooden
Analysis of magnetotelluric profile data from the Ruby Mountains metamorphic core complex and southern Carlin Trend region, Nevada
We have collected about 150 magnetotelluric (MT) soundings in northeastern Nevada in the region of the Ruby Mountains metamorphic core complex uplift and southern Carlin mineral trend, in an effort to illuminate controls on core complex evolution and deposition of world-class gold deposits. The region has experienced a broad range of tectonic events including several periods of compressional and e
Authors
Philip E. Wannamaker, William M. Doerner, John A. Stodt, Timothy L. Sodergen, Brian D. Rodriguez
Magnetotelluric data along the Tangle Lakes profile, Alaska
The 89 km long Tangle Lakes profile of 14 magnetotelluric (MT) stations begins 4 km south of the confluence of Augustana Creek and the Delta River in south central Alaska. The northernmost station, TLM13, is located just south of the Denali Fault in the rugged Clearwater Mountains. The north-south profile crosses the Ampitheater Mountains northwest of the Tangle Lakes area and continues until it t
Authors
Jay A. Sampson, Brian D. Rodriguez
Magnetotelluric data in the middle Rio Grande basin, Albuquerque volcanoes, New Mexico
The population in the Albuquerque-Santa Fe region of New Mexico is rapidly growing. The Santa Fe Group aquifer in the Middle Rio Grande Basin is the main source of municipal water for the greater Albuquerque metropolitan area. The capacity of this aquifer is more limited than previously thought (Thorn et al., 1993). The Middle Rio Grande Basin, as defined hydrologically and used here, is the area
Authors
Jackie M. Williams, Brian D. Rodriguez
Resistivity structure across the Humboldt River basin, north-central Nevada
Magnetotelluric data collected along five profiles show deep
resistivity structures beneath the Battle Mountain-Eureka and
Carlin gold trends in north-central Nevada, which appear
consistent with tectonic breaks in the crust that possibly served
as channels for hydrothermal fluids. It seems likely that gold
deposits along these linear trends were, therefore, controlled by
deep regional crust
Authors
Brian D. Rodriguez, Jackie M. Williams
Non-USGS Publications**
Eberhart-Phillips, D., Stanley, W.D., Rodriguez, B.D., and Lutter, W.J., 1995, Surface seismic and electrical methods to detect fluids related to faulting: Journal of Geophysical Research, vol. 100, no. B7, p. 12,919-12,936, https://doi.org/10.1029/94JB03256.
Stanley, W.D., and Rodriguez, B.D., 1992, Structure of the Reelfoot Rift as interpreted from 2-D magnetotelluric models: Seismological Research Letters, vol. 63, No. 3, Special Issue: The New Madrid Seismic Zone, p. 223-232, https://doi.org/10.1785/gssrl.63.3.223.
Eberhart-Phillips, D., Labson, V.F., Stanley, W.D., Michael, A.J., and Rodriguez, B.D., 1990, Preliminary velocity and resistivity models of the Loma Prieta Earthquake region: Geophysical Research Letters, vol. 17, no. 8, p. 1235-1238, https://doi.org/10.1029/GL017i008p01235.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 19
No Result Found
Filter Total Items: 70
Magnetotelluric survey to locate the Archean/Proterozoic suture zone in north-central Elko County, Nevada
No abstract available.
Authors
Jackie M. Williams, Brian D. Rodriguez
Magnetotelluric data in the Espanola Basin, west of Santa Fe, New Mexico
No abstract available.
Authors
Jackie M. Williams, Brian D. Rodriguez
The Loma Prieta, California, Earthquake of October 17, 1989 - Geologic setting and crustal structure
Although some scientists considered the Ms=7.1 Loma Prieta, Calif., earthquake of 1989 to be an anticipated event, some aspects of the earthquake were surprising. It occurred 17 km beneath the Santa Cruz Mountains along a left-stepping restraining bend in the San Andreas fault system. Rupture on the southwest-dipping fault plane consisted of subequal amounts of right-lateral and reverse motion but
Authors
Ray E. Wells
Magnetotelluric data in the Southwest Espanola Basin, northern New Mexico
No abstract available.
Authors
Jackie M. Williams, Brian D. Rodriguez
Magnetotelluric data release across the Hubbell Springs fault area, Middle Rio Grande Basin, New Mexico
No abstract available.
Authors
Jackie M. Williams, Brian D. Rodriguez
Magnetotelluric data release for locating the Archean/Proterozoic suture zone, east-central Tooele County, Utah
Many sediment-hosted gold deposits occur along linear trends in the Great Basin. The distribution and genesis of these deposits in the Great Basin is not fully understood. In general, most models agree that regional structures played an important role in the spatial distribution of these deposits (e.g. Arehart and others, 1993; Ilchik and Barton, 1997; Radtke, 1985; Shawe, 1991; Sillitoe and Bonha
Authors
Jackie M. Williams, Brian D. Rodriguez
Geophysical and isotopic constraints on crustal structure related to mineral trends in north-central Nevada and implications for tectonic history
We combined information from Sr and Pb isotope data and magnetotelluric models to develop a new magnetic and gravity interpretation of the crustal structure of north-central Nevada to better understand the origin of mineral trends. The new interpretation suggests a crustal structure that is composed of Precambrian continental crust, transitional crust, and primarily oceanic crust that are separate
Authors
V. J. S. Grauch, B. D. Rodriguez, J. L. Wooden
Evidence for a Battle Mountain-Eureka crustal fault zone, north-central Nevada, and its relation to Neoproterozoic-Early Paleozoic continental breakup
Combined evidence from gravity, radiogenic isotope, and magnetotelluric (MT) data indicates a crustal fault zone that coincides with the northwest-trending Battle Mountain-Eureka (BME) mineral trend in north-central Nevada, USA. The BME crustal fault zone likely originated during Neoproterozoic-Early Paleozoic rifting of the continent and had a large influence on subsequent tectonic events, such a
Authors
V. J. S. Grauch, B. D. Rodriguez, V. Bankey, J. L. Wooden
Analysis of magnetotelluric profile data from the Ruby Mountains metamorphic core complex and southern Carlin Trend region, Nevada
We have collected about 150 magnetotelluric (MT) soundings in northeastern Nevada in the region of the Ruby Mountains metamorphic core complex uplift and southern Carlin mineral trend, in an effort to illuminate controls on core complex evolution and deposition of world-class gold deposits. The region has experienced a broad range of tectonic events including several periods of compressional and e
Authors
Philip E. Wannamaker, William M. Doerner, John A. Stodt, Timothy L. Sodergen, Brian D. Rodriguez
Magnetotelluric data along the Tangle Lakes profile, Alaska
The 89 km long Tangle Lakes profile of 14 magnetotelluric (MT) stations begins 4 km south of the confluence of Augustana Creek and the Delta River in south central Alaska. The northernmost station, TLM13, is located just south of the Denali Fault in the rugged Clearwater Mountains. The north-south profile crosses the Ampitheater Mountains northwest of the Tangle Lakes area and continues until it t
Authors
Jay A. Sampson, Brian D. Rodriguez
Magnetotelluric data in the middle Rio Grande basin, Albuquerque volcanoes, New Mexico
The population in the Albuquerque-Santa Fe region of New Mexico is rapidly growing. The Santa Fe Group aquifer in the Middle Rio Grande Basin is the main source of municipal water for the greater Albuquerque metropolitan area. The capacity of this aquifer is more limited than previously thought (Thorn et al., 1993). The Middle Rio Grande Basin, as defined hydrologically and used here, is the area
Authors
Jackie M. Williams, Brian D. Rodriguez
Resistivity structure across the Humboldt River basin, north-central Nevada
Magnetotelluric data collected along five profiles show deep
resistivity structures beneath the Battle Mountain-Eureka and
Carlin gold trends in north-central Nevada, which appear
consistent with tectonic breaks in the crust that possibly served
as channels for hydrothermal fluids. It seems likely that gold
deposits along these linear trends were, therefore, controlled by
deep regional crust
Authors
Brian D. Rodriguez, Jackie M. Williams
Non-USGS Publications**
Eberhart-Phillips, D., Stanley, W.D., Rodriguez, B.D., and Lutter, W.J., 1995, Surface seismic and electrical methods to detect fluids related to faulting: Journal of Geophysical Research, vol. 100, no. B7, p. 12,919-12,936, https://doi.org/10.1029/94JB03256.
Stanley, W.D., and Rodriguez, B.D., 1992, Structure of the Reelfoot Rift as interpreted from 2-D magnetotelluric models: Seismological Research Letters, vol. 63, No. 3, Special Issue: The New Madrid Seismic Zone, p. 223-232, https://doi.org/10.1785/gssrl.63.3.223.
Eberhart-Phillips, D., Labson, V.F., Stanley, W.D., Michael, A.J., and Rodriguez, B.D., 1990, Preliminary velocity and resistivity models of the Loma Prieta Earthquake region: Geophysical Research Letters, vol. 17, no. 8, p. 1235-1238, https://doi.org/10.1029/GL017i008p01235.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.