Mark A Engle (Former Employee)
Science and Products
Filter Total Items: 64
Accuracy of methods for reporting inorganic element concentrations and radioactivity in oil and gas wastewaters from the Appalachian Basin, U.S. based on an inter-laboratory comparison. Accuracy of methods for reporting inorganic element concentrations and radioactivity in oil and gas wastewaters from the Appalachian Basin, U.S. based on an inter-laboratory comparison.
Accurate and precise analyses of oil and gas (O&G) wastewaters and solids (e.g., sediments and sludge) are important for the regulatory monitoring of O&G development and tracing potential O&G contamination in the environment. In this study, 15 laboratories participated in an inter-laboratory comparison on the chemical characterization of three O&G wastewaters from the Appalachian Basin...
Authors
Travis L. Tasker, William D Burgos, Moses A Ajemigbitse, Nancy E. Lauer, Alen V Gusa, Maksat Kuatbek, Dustin May, Joshua D. Landis, Daniel S. Alessi, Amanda M Johnsen, James M Kaste, Kurt Headrick, Franziska DH Wilke, Mark McNeal, Mark A. Engle, Aaron M. Jubb, Radisav Vidic, Avner Vengosh, Nathaniel R. Warner
Gas emissions, tars, and secondary minerals at the Ruth Mullins and Tiptop coal mine fires Gas emissions, tars, and secondary minerals at the Ruth Mullins and Tiptop coal mine fires
Both the Tiptop and Ruth Mullins coal fires, Kentucky, were reinvestigated in 2009 and 2010. The Tiptop fire was not as active in 2009 and may have been on the path to burning out at the time of the 2009 visit. The Ruth Mullins coal mine fire, Perry County, Kentucky, has been the subject of several field investigations, including November 2009–February 2010 investigations in which we...
Authors
Jennifer M. K. O’Keefe, Erika R. Neace, Maxwell L. Hammond, James C. Hower, Mark A. Engle, Joseph A. East, Nicholas J. Geboy, Ricardo A. Olea, Kevin R. Henke, Gregory C. Copley, Edward W. Lemley, Rachel S. Hatch Nally, Antonia E. Hansen, Allison R. Richardson, Anne B. Satterwhite, Glenn B. Stracher, Larry F. Radke, Charles Smeltzer, Christopher Romanek, Donald R. Blake, Paul A. Schroeder, Stephen D. Emsbo-Mattingly, Scott A. Stout
Cadmium isotope fractionation during coal combustion: Insights from two U.S. coal-fired power plants Cadmium isotope fractionation during coal combustion: Insights from two U.S. coal-fired power plants
Coal combustion, one of the principal energy sources of electricity in the United States, produces over 100 million tons of coal combustion products (CCPs) per year in the U.S. The reuse and disposal of CCPs has the potential to release toxic trace elements, including cadmium (Cd), into the environment. In this study, we investigated CCPs, including bottom ash (BA), economizer fly ash...
Authors
Fotio Fouskas, Ma Lin, Mark A. Engle, Leslie F. Ruppert, Nicholas J. Geboy, Matthew A. Costa
The isometric log-ratio (ilr)-ion plot: A proposed alternative to the Piper diagram The isometric log-ratio (ilr)-ion plot: A proposed alternative to the Piper diagram
The Piper diagram has been a staple for the analysis of water chemistry data since its introduction in 1944. It was conceived to be a method for water classification, determination of potential water mixing between end-members, and to aid in the identification of chemical reactions controlling a sample set. This study uses the information gleaned over the years since the release of the...
Authors
Jenna L. Shelton, Mark A. Engle, Antonella Buccianti, Madalyn S. Blondes
Assessment of water and proppant quantities associated with petroleum production from the Bakken and Three Forks Formations, Williston Basin Province, Montana and North Dakota, 2016 Assessment of water and proppant quantities associated with petroleum production from the Bakken and Three Forks Formations, Williston Basin Province, Montana and North Dakota, 2016
The U.S. Geological Survey (USGS) has completed an assessment of water and proppant requirements and water production associated with the possible future production of undiscovered oil and gas resources in the Three Forks and Bakken Formations (Late Devonian to Early Mississippian) of the Williston Basin Province in Montana and North Dakota. This water and proppant assessment is directly...
Authors
Seth S. Haines, Brian A. Varela, Sarah J. Hawkins, Nicholas J. Gianoutsos, Joanna N. Thamke, Mark A. Engle, Marilyn E. Tennyson, Christopher J. Schenk, Stephanie B. Gaswirth, Kristen R. Marra, Scott A. Kinney, Tracey J. Mercier, Cericia D. Martinez
Methane and benzene in drinking-water wells overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas Methane and benzene in drinking-water wells overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas
Water wells (n = 116) overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas were sampled for chemical, isotopic, and groundwater-age tracers to investigate the occurrence and sources of selected hydrocarbons in groundwater. Methane isotopes and hydrocarbon gas compositions indicate most of the methane in the wells was biogenic and produced by the CO2...
Authors
Peter B. McMahon, Jeannie R. B. Barlow, Mark A. Engle, Kenneth Belitz, Patricia B. Ging, Andrew G. Hunt, Bryant C. Jurgens, Yousif K. Kharaka, Roland W. Tollett, Timothy M. Kresse
Science and Products
Filter Total Items: 64
Accuracy of methods for reporting inorganic element concentrations and radioactivity in oil and gas wastewaters from the Appalachian Basin, U.S. based on an inter-laboratory comparison. Accuracy of methods for reporting inorganic element concentrations and radioactivity in oil and gas wastewaters from the Appalachian Basin, U.S. based on an inter-laboratory comparison.
Accurate and precise analyses of oil and gas (O&G) wastewaters and solids (e.g., sediments and sludge) are important for the regulatory monitoring of O&G development and tracing potential O&G contamination in the environment. In this study, 15 laboratories participated in an inter-laboratory comparison on the chemical characterization of three O&G wastewaters from the Appalachian Basin...
Authors
Travis L. Tasker, William D Burgos, Moses A Ajemigbitse, Nancy E. Lauer, Alen V Gusa, Maksat Kuatbek, Dustin May, Joshua D. Landis, Daniel S. Alessi, Amanda M Johnsen, James M Kaste, Kurt Headrick, Franziska DH Wilke, Mark McNeal, Mark A. Engle, Aaron M. Jubb, Radisav Vidic, Avner Vengosh, Nathaniel R. Warner
Gas emissions, tars, and secondary minerals at the Ruth Mullins and Tiptop coal mine fires Gas emissions, tars, and secondary minerals at the Ruth Mullins and Tiptop coal mine fires
Both the Tiptop and Ruth Mullins coal fires, Kentucky, were reinvestigated in 2009 and 2010. The Tiptop fire was not as active in 2009 and may have been on the path to burning out at the time of the 2009 visit. The Ruth Mullins coal mine fire, Perry County, Kentucky, has been the subject of several field investigations, including November 2009–February 2010 investigations in which we...
Authors
Jennifer M. K. O’Keefe, Erika R. Neace, Maxwell L. Hammond, James C. Hower, Mark A. Engle, Joseph A. East, Nicholas J. Geboy, Ricardo A. Olea, Kevin R. Henke, Gregory C. Copley, Edward W. Lemley, Rachel S. Hatch Nally, Antonia E. Hansen, Allison R. Richardson, Anne B. Satterwhite, Glenn B. Stracher, Larry F. Radke, Charles Smeltzer, Christopher Romanek, Donald R. Blake, Paul A. Schroeder, Stephen D. Emsbo-Mattingly, Scott A. Stout
Cadmium isotope fractionation during coal combustion: Insights from two U.S. coal-fired power plants Cadmium isotope fractionation during coal combustion: Insights from two U.S. coal-fired power plants
Coal combustion, one of the principal energy sources of electricity in the United States, produces over 100 million tons of coal combustion products (CCPs) per year in the U.S. The reuse and disposal of CCPs has the potential to release toxic trace elements, including cadmium (Cd), into the environment. In this study, we investigated CCPs, including bottom ash (BA), economizer fly ash...
Authors
Fotio Fouskas, Ma Lin, Mark A. Engle, Leslie F. Ruppert, Nicholas J. Geboy, Matthew A. Costa
The isometric log-ratio (ilr)-ion plot: A proposed alternative to the Piper diagram The isometric log-ratio (ilr)-ion plot: A proposed alternative to the Piper diagram
The Piper diagram has been a staple for the analysis of water chemistry data since its introduction in 1944. It was conceived to be a method for water classification, determination of potential water mixing between end-members, and to aid in the identification of chemical reactions controlling a sample set. This study uses the information gleaned over the years since the release of the...
Authors
Jenna L. Shelton, Mark A. Engle, Antonella Buccianti, Madalyn S. Blondes
Assessment of water and proppant quantities associated with petroleum production from the Bakken and Three Forks Formations, Williston Basin Province, Montana and North Dakota, 2016 Assessment of water and proppant quantities associated with petroleum production from the Bakken and Three Forks Formations, Williston Basin Province, Montana and North Dakota, 2016
The U.S. Geological Survey (USGS) has completed an assessment of water and proppant requirements and water production associated with the possible future production of undiscovered oil and gas resources in the Three Forks and Bakken Formations (Late Devonian to Early Mississippian) of the Williston Basin Province in Montana and North Dakota. This water and proppant assessment is directly...
Authors
Seth S. Haines, Brian A. Varela, Sarah J. Hawkins, Nicholas J. Gianoutsos, Joanna N. Thamke, Mark A. Engle, Marilyn E. Tennyson, Christopher J. Schenk, Stephanie B. Gaswirth, Kristen R. Marra, Scott A. Kinney, Tracey J. Mercier, Cericia D. Martinez
Methane and benzene in drinking-water wells overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas Methane and benzene in drinking-water wells overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas
Water wells (n = 116) overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas were sampled for chemical, isotopic, and groundwater-age tracers to investigate the occurrence and sources of selected hydrocarbons in groundwater. Methane isotopes and hydrocarbon gas compositions indicate most of the methane in the wells was biogenic and produced by the CO2...
Authors
Peter B. McMahon, Jeannie R. B. Barlow, Mark A. Engle, Kenneth Belitz, Patricia B. Ging, Andrew G. Hunt, Bryant C. Jurgens, Yousif K. Kharaka, Roland W. Tollett, Timothy M. Kresse