Peter M Theodorakos (Former Employee)
Science and Products
Filter Total Items: 32
Update and revisions for Open-File Report 98-624, synthetic precipitation leaching procedure (SPLP) leachate chemistry data for solid mine-waste composite samples from the Silverton and Leadville districts in Colorado
This report supersedes, revises, and updates information and data previously released in Open-File Report 98-624 (Montour and others, 1998). Data for this report were derived from leaching of mine-waste composite samples using a modification of E.P. A. Method 1312, Synthetic Precipitation Leaching Procedure (SPLP). In 1997, members of the U.S. Geological Survey Mine Waste...
Authors
Philip L. Hageman, George A. Desborough, Paul J. Lamothe, Peter M. Theodorakos
Analytical data for reconnaissance geochemical samples from mine dumps, stream sediments and waters at the Thompson Creek Tungsten Mine, Custer County, Idaho
The Thompson Creek mine is an inactive and abandoned tungsten mine located along Thompson Creek about 10.5 miles (17 km) northwest of Clayton, Idaho (see location map in file LOCATION.PDF). The mine consisted initially of open pit mining of outcrops and later of underground workings accessed by a single adit. The mine was worked through 1955 and waste piles presently reside in the flood...
Authors
Bradley S. Van Gosen, Robert G. Eppinger, Jane M. Hammarstrom, Paul L. Briggs, J.G. Crock, C. A. Gent, A.L. Meier, S.J. Sutley, P. M. Theodorakos
Synthetic Precipitation Leaching Procedure (SPLP) leachate chemistry data for solid mine-waste composite samples from southwestern New Mexico, and Leadville, Colorado
This report details chemistry data derived from leaching of mine-waste composite samples using a modification of E.P.A. Method 1312, Synthetic Precipitation Leaching Procedure (SPLP). In 1998, members of the U.S. Geological Survey Mine Waste Characterization Project collected four mine-waste composite samples from mining districts in southwestern New Mexico (CAR and PET) and near...
Authors
Philip L. Hageman, Paul L. Briggs, George A. Desborough, Paul J. Lamothe, Peter M. Theodorakos
Distribution, speciation, and transport of mercury in stream-sediment, stream-water, and fish collected near abandoned mercury mines in southwestern Alaska, USA
Concentrations of total Hg, Hg (II), and methylmercury were measured in stream-sediment, stream-water, and fish collected downstream from abandoned mercury mines in south-western Alaska to evaluate environmental effects to surrounding ecosystems. These mines are found in a broad belt covering several tens of thousands of square kilometers, primarily in the Kuskokwim River basin. Mercury...
Authors
J. R. Gray, P. M. Theodorakos, E.H. Bailey, R.R. Turner
Geochemical data for stream-sediment, heavy-mineral-concentrate, and rock samples collected from the Fortyseven Creek gold-arsenic-antimony-tungsten prospect, southwestern Alaska
In the summer of 1991, we conducted a reconnaissance geochemical survey around the Fortyseven Creek Au-As-Sb-W prospect that is located in the southwestern part of the Sleetmute quadrangle. At that time, this project was a small part of a more comprehensive Alaska Mineral Resource Assessment Program (AMRAP) study of the Sleemute quadrangle. AMRAP studies were conducted by the U.S...
Authors
John R. Gray, G. K. Lee, R.M. O'Leary, P. M. Theodorakos
Geochemical data for environmental studies of mineral deposits at Nabesna, Kennecott, Orange Hill, Bond Creek, Bremner, and Gold Hill, Wrangell-St. Elias National Park and Preserve, Alaska
Environmental geochemical investigations were carried out between 1994 and 1997 in Wrangell-St. Elias National Park and Preserve (WRST), Alaska. Mineralized areas studied include the historic Nabesna gold mine/mill and surrounding areas; the historic Kennecott copper mill area and nearby Bonanza, Erie, Glacier, and Jumbo mines; the historic mill and gold mines in the Bremner district...
Authors
Robert G. Eppinger, Paul L. Briggs, Danny S. Rosenkrans, Vanessa Ballestrazze, Jose Aldir, Z. A. Brown, J.G. Crock, W. M. d'Angelo, Michael W. Doughten, D.L. Fey, Philip L. Hageman, R.T. Hopkins, R. R. Knight, M.J. Malcolm, J.B. McHugh, A.L. Meier, J.M. Motooka, R.M. O'Leary, B. H. Roushey, S.J. Sultley, P. M. Theodorakos, Stephen A. Wilson
Geochemical data for environmental studies of mercury mines in Nevada
No abstract available.
Authors
John R. Gray, Monique Adams, James G. Crock, Peter M. Theodorakos
Geochemical baselines for surface waters and stream sediments and processes controlling element mobility, Rough and Ready Creek and Oregon Caves National Monument and vicinity, southwestern Oregon
No abstract available.
Authors
W. T. Miller, D. E. Smith, A.L. Meier, Paul L. Briggs, P. M. Theodorakos, R.F. Sanzolone, R. B. Vaughn
Leachate chemistry data for solid mine waste composite samples from Silverton and Leadville, Colorado
No abstract available.
Authors
Maria R. Montour, Philip L. Hageman, A.L. Meier, Peter M. Theodorakos, Paul L. Briggs
EPA method 1312 (synthetic precipitation leaching procedure); leachate chemistry data for solid mine waste composite samples from Silverton and Leadville, Colorado
The EPA Method 1312 Synthetic Precipitation Leaching Procedure (SPLP) leachate chemistry data for mine waste samples is presented. Four mine waste composite samples were collected from Silverton (YUK and MAY) and Leadville (SUN and VEN), Colorado and were extracted following the EPA Method 1312 procedure. Leachate pH values ranged from 2.68 to 3.37 and the samples were ranked by...
Authors
Maria R. Montour, Philip L. Hageman, A.L. Meier, Peter M. Theodorakos, Paul L. Briggs
Chain of custody; recommendations for acceptance and analysis of evidentiary geochemical samples
Personnel from the Analytical Chemistry Services Group (ACSG), Mineral Resource Survey Program, formed a team to determine the policies for acceptance and analysis of geochemical samples. This team contacted law enforcement agencies that handle litigious samples, laboratories that work with samples of special nature, and the Solicitor General, Department of the Interior. Using the...
Authors
Christine M. Murphy, Paul L. Briggs, Betty M. Adrian, Stephen A. Wilson, Philip L. Hageman, Pete M. Theodorakos
Analytical data of stream-sediment and heavy-mineral-concentrate samples collected from the Buckstock Mountains and surrounding areas, Sleetmute Quadrangle, southwest Alaska
No abstract available.
Authors
J. R. Gray, P. M. Theodorakos, G. K. Lee, Philip L. Hageman, S.J. Sutley
Non-USGS Publications**
**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: 32
Update and revisions for Open-File Report 98-624, synthetic precipitation leaching procedure (SPLP) leachate chemistry data for solid mine-waste composite samples from the Silverton and Leadville districts in Colorado
This report supersedes, revises, and updates information and data previously released in Open-File Report 98-624 (Montour and others, 1998). Data for this report were derived from leaching of mine-waste composite samples using a modification of E.P. A. Method 1312, Synthetic Precipitation Leaching Procedure (SPLP). In 1997, members of the U.S. Geological Survey Mine Waste...
Authors
Philip L. Hageman, George A. Desborough, Paul J. Lamothe, Peter M. Theodorakos
Analytical data for reconnaissance geochemical samples from mine dumps, stream sediments and waters at the Thompson Creek Tungsten Mine, Custer County, Idaho
The Thompson Creek mine is an inactive and abandoned tungsten mine located along Thompson Creek about 10.5 miles (17 km) northwest of Clayton, Idaho (see location map in file LOCATION.PDF). The mine consisted initially of open pit mining of outcrops and later of underground workings accessed by a single adit. The mine was worked through 1955 and waste piles presently reside in the flood...
Authors
Bradley S. Van Gosen, Robert G. Eppinger, Jane M. Hammarstrom, Paul L. Briggs, J.G. Crock, C. A. Gent, A.L. Meier, S.J. Sutley, P. M. Theodorakos
Synthetic Precipitation Leaching Procedure (SPLP) leachate chemistry data for solid mine-waste composite samples from southwestern New Mexico, and Leadville, Colorado
This report details chemistry data derived from leaching of mine-waste composite samples using a modification of E.P.A. Method 1312, Synthetic Precipitation Leaching Procedure (SPLP). In 1998, members of the U.S. Geological Survey Mine Waste Characterization Project collected four mine-waste composite samples from mining districts in southwestern New Mexico (CAR and PET) and near...
Authors
Philip L. Hageman, Paul L. Briggs, George A. Desborough, Paul J. Lamothe, Peter M. Theodorakos
Distribution, speciation, and transport of mercury in stream-sediment, stream-water, and fish collected near abandoned mercury mines in southwestern Alaska, USA
Concentrations of total Hg, Hg (II), and methylmercury were measured in stream-sediment, stream-water, and fish collected downstream from abandoned mercury mines in south-western Alaska to evaluate environmental effects to surrounding ecosystems. These mines are found in a broad belt covering several tens of thousands of square kilometers, primarily in the Kuskokwim River basin. Mercury...
Authors
J. R. Gray, P. M. Theodorakos, E.H. Bailey, R.R. Turner
Geochemical data for stream-sediment, heavy-mineral-concentrate, and rock samples collected from the Fortyseven Creek gold-arsenic-antimony-tungsten prospect, southwestern Alaska
In the summer of 1991, we conducted a reconnaissance geochemical survey around the Fortyseven Creek Au-As-Sb-W prospect that is located in the southwestern part of the Sleetmute quadrangle. At that time, this project was a small part of a more comprehensive Alaska Mineral Resource Assessment Program (AMRAP) study of the Sleemute quadrangle. AMRAP studies were conducted by the U.S...
Authors
John R. Gray, G. K. Lee, R.M. O'Leary, P. M. Theodorakos
Geochemical data for environmental studies of mineral deposits at Nabesna, Kennecott, Orange Hill, Bond Creek, Bremner, and Gold Hill, Wrangell-St. Elias National Park and Preserve, Alaska
Environmental geochemical investigations were carried out between 1994 and 1997 in Wrangell-St. Elias National Park and Preserve (WRST), Alaska. Mineralized areas studied include the historic Nabesna gold mine/mill and surrounding areas; the historic Kennecott copper mill area and nearby Bonanza, Erie, Glacier, and Jumbo mines; the historic mill and gold mines in the Bremner district...
Authors
Robert G. Eppinger, Paul L. Briggs, Danny S. Rosenkrans, Vanessa Ballestrazze, Jose Aldir, Z. A. Brown, J.G. Crock, W. M. d'Angelo, Michael W. Doughten, D.L. Fey, Philip L. Hageman, R.T. Hopkins, R. R. Knight, M.J. Malcolm, J.B. McHugh, A.L. Meier, J.M. Motooka, R.M. O'Leary, B. H. Roushey, S.J. Sultley, P. M. Theodorakos, Stephen A. Wilson
Geochemical data for environmental studies of mercury mines in Nevada
No abstract available.
Authors
John R. Gray, Monique Adams, James G. Crock, Peter M. Theodorakos
Geochemical baselines for surface waters and stream sediments and processes controlling element mobility, Rough and Ready Creek and Oregon Caves National Monument and vicinity, southwestern Oregon
No abstract available.
Authors
W. T. Miller, D. E. Smith, A.L. Meier, Paul L. Briggs, P. M. Theodorakos, R.F. Sanzolone, R. B. Vaughn
Leachate chemistry data for solid mine waste composite samples from Silverton and Leadville, Colorado
No abstract available.
Authors
Maria R. Montour, Philip L. Hageman, A.L. Meier, Peter M. Theodorakos, Paul L. Briggs
EPA method 1312 (synthetic precipitation leaching procedure); leachate chemistry data for solid mine waste composite samples from Silverton and Leadville, Colorado
The EPA Method 1312 Synthetic Precipitation Leaching Procedure (SPLP) leachate chemistry data for mine waste samples is presented. Four mine waste composite samples were collected from Silverton (YUK and MAY) and Leadville (SUN and VEN), Colorado and were extracted following the EPA Method 1312 procedure. Leachate pH values ranged from 2.68 to 3.37 and the samples were ranked by...
Authors
Maria R. Montour, Philip L. Hageman, A.L. Meier, Peter M. Theodorakos, Paul L. Briggs
Chain of custody; recommendations for acceptance and analysis of evidentiary geochemical samples
Personnel from the Analytical Chemistry Services Group (ACSG), Mineral Resource Survey Program, formed a team to determine the policies for acceptance and analysis of geochemical samples. This team contacted law enforcement agencies that handle litigious samples, laboratories that work with samples of special nature, and the Solicitor General, Department of the Interior. Using the...
Authors
Christine M. Murphy, Paul L. Briggs, Betty M. Adrian, Stephen A. Wilson, Philip L. Hageman, Pete M. Theodorakos
Analytical data of stream-sediment and heavy-mineral-concentrate samples collected from the Buckstock Mountains and surrounding areas, Sleetmute Quadrangle, southwest Alaska
No abstract available.
Authors
J. R. Gray, P. M. Theodorakos, G. K. Lee, Philip L. Hageman, S.J. Sutley
Non-USGS Publications**
**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.