Stephen A Wilson (Former Employee)
Science and Products
Filter Total Items: 51
Silurian extension in the Upper Connecticut Valley, United States and the origin of middle Paleozoic basins in the Québec embayment
Pre-Silurian strata of the Bronson Hill arch (BHA) in the Upper Connecticut Valley, NH-VT are host to the latest Ludlow Comerford Intrusive Suite consisting, east to west, of a mafic dike swarm with sheeted dikes, and an intrusive complex. The rocks are mostly mafic but with compositions ranging from gabbro to leucocratic tonalite. The suite is truncated on the west by the Monroe fault, a late Aca
Authors
D.W. Rankin, R.A. Coish, R. D. Tucker, Z.X. Peng, S. A. Wilson, A.A. Rouff
Preliminary characterisation of new glass reference materials (GSA-1G, GSC-1G, GSD-1G and GSE-1G) by laser ablation-inductively coupled plasma-mass spectrometry using 193 nm, 213 nm and 266 nm wavelengths
New glass reference materials GSA-1G, GSC-1G, GSD-1G and GSE-1G have been characterised using a prototype solid state laser ablation system capable of producing wavelengths of 193 nm, 213 nm and 266 nm. This system allowed comparison of the effects of different laser wavelengths under nearly identical ablation and ICP operating conditions. The wavelengths 213 nm and 266 nm were also used at higher
Authors
M. Guillong, K. Hametner, E. Reusser, Stephen A. Wilson, D. Gunther
Development of microanalytical reference materials for geochemical analysis
[No abstract available]
Authors
S. A. Wilson, P.A. Potts
Geochemical data for stream sediment and surface water samples from Panther Creek, the Middle Fork of the Salmon River, and the Main Salmon River, collected before and after the Clear Creek, Little Pistol, and Shellrock wildfires of 2000 in central Idaho
No abstract available.
Authors
Robert G. Eppinger, Paul H. Briggs, Betsy Rieffenberger, Carol Van Zoe Dorn, Ann Brown, James G. Crock, Philip H. Hageman, Allen Meier, Stephen J. Sutley, Peter M. Theodorakos, Stephen A. Wilson
Development of sulfide calibration standards for the laser ablation inductively-coupled plasma mass spectrometry technique
The requirements of standard materials for LA-ICP-MS analysis have been difficult to meet for the determination of trace elements in sulfides. We describe a method for the production of synthetic sulfides by precipitation from solution. The method is detailed by the production of approximately 200 g of a material, PS-1, with a suite of chalcophilic trace elements in an Fe-Zn-Cu-S matrix. Prelimina
Authors
S. A. Wilson, W.I. Ridley, A.E. Koenig
Phosphatic shale analytical quality control materials of the USGS Western U.S. Phosphate Project; bulk geochemical characterization and water leachate analysis
No abstract available.
Authors
J. R. Herring, S. A. Wilson
Baseline geochemical data for stream sediment and surface water samples from Panther Creek, the Middle Fork of the Salmon River, and the Main Salmon River from North Fork to Corn Creek, collected prior to the severe wildfires of 2000 in central Idaho
In 1996, the U.S. Geological Survey conducted a reconnaissance baseline geochemical study in central Idaho. The purpose of the baseline study was to establish a 'geochemical snapshot' of the area, as a datum for monitoring future change in the geochemical landscape, whether natural or human-induced. This report presents the methology, analytical results, and sample descriptions for water, sediment
Authors
Robert G. Eppinger, Paul H. Briggs, Zoe Ann Brown, James G. Crock, Allen Meier, Peter M. Theodorakos, Stephen A. Wilson
Chemical composition of weathered and less weathered strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation; B, Measured sections C and D, Dry Valley, Caribou County, Idaho
No abstract available.
Authors
James R. Herring, S. A. Wilson, L.A. Stillings, A. C. Knudsen, M. E. Gunter, R. G. Tysdal, R. I. Grauch, G. A. Desborough, R. A. Zielinski
Chemical composition of weathered and less weathered strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation
No abstract available.
Authors
J. R. Herring, R. I. Grauch, G. A. Desborough, S. A. Wilson, R. G. Tysdal
Chemical composition of weathered and less weathered strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation. D. Measured sections G and H, Sage Creek area of the Webster Range, Caribou County, Idaho
No abstract available.
Authors
James R. Herring, R. I. Grauch, R. G. Tysdal, S. A. Wilson, G. A. Desborough
The determination of forty-four elements in aqueous samples by inductively coupled plasma-mass spectrometry
No abstract available.
Authors
P. J. Lamothe, Allen L. Meier, S. A. Wilson
Collection, preparation and testing of NIST hard rock mine waste reference material SRM 2780
No abstract available.
Authors
S. A. Wilson, Paul H. Briggs, Z. A. Brown, J.E. Taggart, R. J. Knight
Science and Products
Filter Total Items: 51
Silurian extension in the Upper Connecticut Valley, United States and the origin of middle Paleozoic basins in the Québec embayment
Pre-Silurian strata of the Bronson Hill arch (BHA) in the Upper Connecticut Valley, NH-VT are host to the latest Ludlow Comerford Intrusive Suite consisting, east to west, of a mafic dike swarm with sheeted dikes, and an intrusive complex. The rocks are mostly mafic but with compositions ranging from gabbro to leucocratic tonalite. The suite is truncated on the west by the Monroe fault, a late Aca
Authors
D.W. Rankin, R.A. Coish, R. D. Tucker, Z.X. Peng, S. A. Wilson, A.A. Rouff
Preliminary characterisation of new glass reference materials (GSA-1G, GSC-1G, GSD-1G and GSE-1G) by laser ablation-inductively coupled plasma-mass spectrometry using 193 nm, 213 nm and 266 nm wavelengths
New glass reference materials GSA-1G, GSC-1G, GSD-1G and GSE-1G have been characterised using a prototype solid state laser ablation system capable of producing wavelengths of 193 nm, 213 nm and 266 nm. This system allowed comparison of the effects of different laser wavelengths under nearly identical ablation and ICP operating conditions. The wavelengths 213 nm and 266 nm were also used at higher
Authors
M. Guillong, K. Hametner, E. Reusser, Stephen A. Wilson, D. Gunther
Development of microanalytical reference materials for geochemical analysis
[No abstract available]
Authors
S. A. Wilson, P.A. Potts
Geochemical data for stream sediment and surface water samples from Panther Creek, the Middle Fork of the Salmon River, and the Main Salmon River, collected before and after the Clear Creek, Little Pistol, and Shellrock wildfires of 2000 in central Idaho
No abstract available.
Authors
Robert G. Eppinger, Paul H. Briggs, Betsy Rieffenberger, Carol Van Zoe Dorn, Ann Brown, James G. Crock, Philip H. Hageman, Allen Meier, Stephen J. Sutley, Peter M. Theodorakos, Stephen A. Wilson
Development of sulfide calibration standards for the laser ablation inductively-coupled plasma mass spectrometry technique
The requirements of standard materials for LA-ICP-MS analysis have been difficult to meet for the determination of trace elements in sulfides. We describe a method for the production of synthetic sulfides by precipitation from solution. The method is detailed by the production of approximately 200 g of a material, PS-1, with a suite of chalcophilic trace elements in an Fe-Zn-Cu-S matrix. Prelimina
Authors
S. A. Wilson, W.I. Ridley, A.E. Koenig
Phosphatic shale analytical quality control materials of the USGS Western U.S. Phosphate Project; bulk geochemical characterization and water leachate analysis
No abstract available.
Authors
J. R. Herring, S. A. Wilson
Baseline geochemical data for stream sediment and surface water samples from Panther Creek, the Middle Fork of the Salmon River, and the Main Salmon River from North Fork to Corn Creek, collected prior to the severe wildfires of 2000 in central Idaho
In 1996, the U.S. Geological Survey conducted a reconnaissance baseline geochemical study in central Idaho. The purpose of the baseline study was to establish a 'geochemical snapshot' of the area, as a datum for monitoring future change in the geochemical landscape, whether natural or human-induced. This report presents the methology, analytical results, and sample descriptions for water, sediment
Authors
Robert G. Eppinger, Paul H. Briggs, Zoe Ann Brown, James G. Crock, Allen Meier, Peter M. Theodorakos, Stephen A. Wilson
Chemical composition of weathered and less weathered strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation; B, Measured sections C and D, Dry Valley, Caribou County, Idaho
No abstract available.
Authors
James R. Herring, S. A. Wilson, L.A. Stillings, A. C. Knudsen, M. E. Gunter, R. G. Tysdal, R. I. Grauch, G. A. Desborough, R. A. Zielinski
Chemical composition of weathered and less weathered strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation
No abstract available.
Authors
J. R. Herring, R. I. Grauch, G. A. Desborough, S. A. Wilson, R. G. Tysdal
Chemical composition of weathered and less weathered strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation. D. Measured sections G and H, Sage Creek area of the Webster Range, Caribou County, Idaho
No abstract available.
Authors
James R. Herring, R. I. Grauch, R. G. Tysdal, S. A. Wilson, G. A. Desborough
The determination of forty-four elements in aqueous samples by inductively coupled plasma-mass spectrometry
No abstract available.
Authors
P. J. Lamothe, Allen L. Meier, S. A. Wilson
Collection, preparation and testing of NIST hard rock mine waste reference material SRM 2780
No abstract available.
Authors
S. A. Wilson, Paul H. Briggs, Z. A. Brown, J.E. Taggart, R. J. Knight