Brian D Rodriguez (Former Employee)
Science and Products
Filter Total Items: 19
No Result Found
Filter Total Items: 70
Digital airborne time domain electromagnetic data from surveys over Cochiti Pueblo, Rio Puerco, and Rio Rancho, New Mexico
The Albuquerque-Santa Fe region is rapidly growing. The Santa Fe Group aquifer in the Middle Rio Grande Basin (MRGB) is the main source of municipal water for the greater Albuquerque metropolitan area and is more limited than previously thought (Thorn et al., 1993). The MRGB, as defined hydrologically and used here, is the area within the Rio Grande Valley extending from Cochiti Dam downstream to
Authors
Maria Deszcz-Pan, B. D. Rodriguez, J. P. Doucette, Michel Godbout, J. M. Williams, D. A. Sawyer, B. D. Stone, V. J. Grauch
Tectonic controls on magmatism in the Geysers-Clear Lake region: Evidence from new geophysical models
In order to study magmatism and geothermal systems in The Geysers–Clear Lake region, we developed a detailed three-dimensional tomographic velocity model based on local earthquakes. This high-resolution model resolves the velocity structure of the crust in the region to depths of approximately 12 km. The most significant velocity contrasts in The Geysers–Clear Lake region occur in the steam produc
Authors
W. D. Stanley, H. M. Benz, M. A. Walters, A. Villasenor, B. D. Rodriguez
Electrical resistivity survey in the Cornudas Mountains area, Otero County, New Mexico
No abstract available.
Authors
D. P. Klein, B. D. Rodriguez
Tectonic controls on magmatism and geothermal resources in the Geysers-Clear Lake region, California: Integration of new geologic, earthquake tomography, seismicity, gravity, and magnetotelluric data
No abstract available.
Authors
W. D. Stanley, H. M. Benz, M. A. Walters, B. D. Rodriguez
Deep regional resistivity structure across the Carlin Trend
The genesis of gold deposits along the Carlin trend is not fully understood. Many of the significant mineral deposits in the Carlin trend were formed during the Tertiary as a result of interrelated high-angle basin-and-range faulting, intrusive igneous activity, and hydrothermal processes (Radtke, 1985). According to Shawe (1991), the linearity of the gold deposits along the Carlin trend and the s
Authors
Brian D. Rodriguez
Geology and mineral resources of the Cornudas Mountains, New Mexico
No abstract available.
Authors
C.J. Nutt, J. M. O'Neill, M.D. Kleinkopf, D. P. Klein, W. R. Miller, B. D. Rodriguez, V. T. McLemore
Axial structures within the Reelfoot Rift delineated with magnetotelluric surveys
In the winter of 1811-12, three of the largest historic earthquakes in the United States occurred near New Madrid, Mo. Seismicity continues to the present day throughout a tightly clustered pattern of epicenters centered on the bootheel of Missouri, including parts of northeastern Arkansas, northwestern Tennessee, western Kentucky, and southern Illinois. In 1990, the New Madrid seismic zone/Centra
Authors
B. D. Rodriguez, W. D. Stanley, J. M. Williams
Surface seismic and electrical methods to detect fluids related to faulting
In the absence of drilling, surface-based geophysical methods are necessary to observe fault zones and fault zone physical properties at seismogenic depths. These in situ physical properties can then be used to infer the presence and distribution of fluids along faults, although such observations are by nature indirect and become less exact with greater depth. Multiple observations of a range of s
Authors
Donna Eberhart-Phillips, William D. Stanley, Brian D. Rodriguez, William J. Lutter
Structure of the Reelfoot rift as interpreted from 2-D magnetotelluric models
The results of magnetotelluric (MT) surveys reveal structures associated with the Reelfoot rift, including an axial high-resistivity structure that may be related to intrusions in the central part of the rift or to a previously unrecognized horst. The axis of this resistivity high generally follows the central part of the Reelfoot rift, but its orientation is offset several degrees from the enigma
Authors
William D. Stanley, Brian D. Rodriguez
Preliminary velocity and resistivity models of the Loma Prieta Earthquake region
A preliminary three-dimensional velocity model of the Loma Prieta epicentral region in the Santa Cruz Mountains of California has been derived using raypaths from aftershocks recorded by the U.S.G.S. seismic network. In addition, a magnetotelluric sounding profile was completed prior to the earthquake and a two-dimensional resistivity model computed. The velocity and resistivity models include a l
Authors
Donna Eberhart-Phillips, Victor F. Labson, William D. Stanley, Andrew J. Michael, Brian D. Rodriguez
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
Digital airborne time domain electromagnetic data from surveys over Cochiti Pueblo, Rio Puerco, and Rio Rancho, New Mexico
The Albuquerque-Santa Fe region is rapidly growing. The Santa Fe Group aquifer in the Middle Rio Grande Basin (MRGB) is the main source of municipal water for the greater Albuquerque metropolitan area and is more limited than previously thought (Thorn et al., 1993). The MRGB, as defined hydrologically and used here, is the area within the Rio Grande Valley extending from Cochiti Dam downstream to
Authors
Maria Deszcz-Pan, B. D. Rodriguez, J. P. Doucette, Michel Godbout, J. M. Williams, D. A. Sawyer, B. D. Stone, V. J. Grauch
Tectonic controls on magmatism in the Geysers-Clear Lake region: Evidence from new geophysical models
In order to study magmatism and geothermal systems in The Geysers–Clear Lake region, we developed a detailed three-dimensional tomographic velocity model based on local earthquakes. This high-resolution model resolves the velocity structure of the crust in the region to depths of approximately 12 km. The most significant velocity contrasts in The Geysers–Clear Lake region occur in the steam produc
Authors
W. D. Stanley, H. M. Benz, M. A. Walters, A. Villasenor, B. D. Rodriguez
Electrical resistivity survey in the Cornudas Mountains area, Otero County, New Mexico
No abstract available.
Authors
D. P. Klein, B. D. Rodriguez
Tectonic controls on magmatism and geothermal resources in the Geysers-Clear Lake region, California: Integration of new geologic, earthquake tomography, seismicity, gravity, and magnetotelluric data
No abstract available.
Authors
W. D. Stanley, H. M. Benz, M. A. Walters, B. D. Rodriguez
Deep regional resistivity structure across the Carlin Trend
The genesis of gold deposits along the Carlin trend is not fully understood. Many of the significant mineral deposits in the Carlin trend were formed during the Tertiary as a result of interrelated high-angle basin-and-range faulting, intrusive igneous activity, and hydrothermal processes (Radtke, 1985). According to Shawe (1991), the linearity of the gold deposits along the Carlin trend and the s
Authors
Brian D. Rodriguez
Geology and mineral resources of the Cornudas Mountains, New Mexico
No abstract available.
Authors
C.J. Nutt, J. M. O'Neill, M.D. Kleinkopf, D. P. Klein, W. R. Miller, B. D. Rodriguez, V. T. McLemore
Axial structures within the Reelfoot Rift delineated with magnetotelluric surveys
In the winter of 1811-12, three of the largest historic earthquakes in the United States occurred near New Madrid, Mo. Seismicity continues to the present day throughout a tightly clustered pattern of epicenters centered on the bootheel of Missouri, including parts of northeastern Arkansas, northwestern Tennessee, western Kentucky, and southern Illinois. In 1990, the New Madrid seismic zone/Centra
Authors
B. D. Rodriguez, W. D. Stanley, J. M. Williams
Surface seismic and electrical methods to detect fluids related to faulting
In the absence of drilling, surface-based geophysical methods are necessary to observe fault zones and fault zone physical properties at seismogenic depths. These in situ physical properties can then be used to infer the presence and distribution of fluids along faults, although such observations are by nature indirect and become less exact with greater depth. Multiple observations of a range of s
Authors
Donna Eberhart-Phillips, William D. Stanley, Brian D. Rodriguez, William J. Lutter
Structure of the Reelfoot rift as interpreted from 2-D magnetotelluric models
The results of magnetotelluric (MT) surveys reveal structures associated with the Reelfoot rift, including an axial high-resistivity structure that may be related to intrusions in the central part of the rift or to a previously unrecognized horst. The axis of this resistivity high generally follows the central part of the Reelfoot rift, but its orientation is offset several degrees from the enigma
Authors
William D. Stanley, Brian D. Rodriguez
Preliminary velocity and resistivity models of the Loma Prieta Earthquake region
A preliminary three-dimensional velocity model of the Loma Prieta epicentral region in the Santa Cruz Mountains of California has been derived using raypaths from aftershocks recorded by the U.S.G.S. seismic network. In addition, a magnetotelluric sounding profile was completed prior to the earthquake and a two-dimensional resistivity model computed. The velocity and resistivity models include a l
Authors
Donna Eberhart-Phillips, Victor F. Labson, William D. Stanley, Andrew J. Michael, Brian D. Rodriguez
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.