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.
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 and four so
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
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 measured gas
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
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 (EFA), and f
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 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 Piper diagr
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
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 linked to
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
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 reduction
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
Environmental signatures and effects of an oil and gas wastewater spill in the Williston Basin, North Dakota
Wastewaters from oil and gas development pose largely unknown risks to environmental resources. In January 2015, 11.4 M L (million liters) of wastewater (300 g/L TDS) from oil production in the Williston Basin was reported to have leaked from a pipeline, spilling into Blacktail Creek, North Dakota. Geochemical and biological samples were collected in February and June 2015 to identify geochemical
Authors
Isabelle M. Cozzarelli, Katherine Skalak, D.B. Kent, Mark A. Engle, Adam J. Benthem, Adam Mumford, Karl B. Haase, Aïda M. Farag, David Harper, S. C. Nagel, Luke R. Iwanowicz, William H. Orem, Denise M. Akob, Jeanne B. Jaeschke, Joel M. Galloway, Matthias Kohler, Deborah L. Stoliker, Glenn D. Jolly
Quantifying chemical weathering rates along a precipitation gradient on Basse-Terre Island, French Guadeloupe: new insight from U-series isotopes in weathering rinds
Inside soil and saprolite, rock fragments can form weathering clasts (alteration rinds surrounding an unweathered core) and these weathering rinds provide an excellent field system for investigating the initiation of weathering and long term weathering rates. Recently, uranium-series (U-series) disequilibria have shown great potential for determining rind formation rates and quantifying factors co
Authors
Jacqueline M. Engel, Linda May, Peter B. Sak, Jerome Gaillardet, Minghua Ren, Mark A. Engle, Susan L. Brantley
Wastewater disposal from unconventional oil and gas development degrades stream quality at a West Virginia injection facility
The development of unconventional oil and gas (UOG) resources has rapidly increased in recent years; however, the environmental impacts and risks are poorly understood. A single well can generate millions of liters of wastewater, representing a mixture of formation brine and injected hydraulic fracturing fluids. One of the most common methods for wastewater disposal is underground injection; we ar
Authors
Denise M. Akob, Adam Mumford, William H. Orem, Mark A. Engle, Julia (Grace) Klinges, Douglas B. Kent, Isabelle M. Cozzarelli
Geochemistry of formation waters from the Wolfcamp and “Cline” shales: Insights into brine origin, reservoir connectivity, and fluid flow in the Permian Basin, USA
Despite being one of the most important oil producing provinces in the United States, information on basinal hydrogeology and fluid flow in the Permian Basin of Texas and New Mexico is lacking. The source and geochemistry of brines from the basin were investigated (Ordovician- to Guadalupian-age reservoirs) by combining previously published data from conventional reservoirs with geochemical resul
Authors
Mark A. Engle, Francisco R. Reyes, Matthew S. Varonka, William H. Orem, Ma Lin, Adam J. Ianno, Tiffani M. Westphal, Pei Xu, Kenneth C. Carroll
Volatile-organic molecular characterization of shale-oil produced water from the Permian Basin
Growth in unconventional oil and gas has spurred concerns on environmental impact and interest in beneficial uses of produced water (PW), especially in arid regions such as the Permian Basin, the largest U.S. tight-oil producer. To evaluate environmental impact, treatment, and reuse potential, there is a need to characterize the compositional variability of PW. Although hydraulic fracturing has ca
Authors
Naima A. Khan, Mark A. Engle, Barry Dungan, F. Omar Holguin, Pei Xu, Kenneth C. Carroll
A practical guide to the use of major elements, trace elements, and isotopes in compositional data analysis: Applications for deep formation brine geochemistry
In the geosciences, isotopic ratios and trace element concentrations are often used along with major element concentrations to help determine sources of and processes affecting geochemical variation. Compositional Data Analysis (CoDA) is a set of tools, generally attuned to major element data, concerned with the proper statistical treatment and removal of spurious correlations from compositional d
Authors
Madalyn S. Blondes, Mark A. Engle, Nicholas Geboy
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.
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 and four so
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
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 measured gas
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
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 (EFA), and f
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 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 Piper diagr
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
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 linked to
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
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 reduction
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
Environmental signatures and effects of an oil and gas wastewater spill in the Williston Basin, North Dakota
Wastewaters from oil and gas development pose largely unknown risks to environmental resources. In January 2015, 11.4 M L (million liters) of wastewater (300 g/L TDS) from oil production in the Williston Basin was reported to have leaked from a pipeline, spilling into Blacktail Creek, North Dakota. Geochemical and biological samples were collected in February and June 2015 to identify geochemical
Authors
Isabelle M. Cozzarelli, Katherine Skalak, D.B. Kent, Mark A. Engle, Adam J. Benthem, Adam Mumford, Karl B. Haase, Aïda M. Farag, David Harper, S. C. Nagel, Luke R. Iwanowicz, William H. Orem, Denise M. Akob, Jeanne B. Jaeschke, Joel M. Galloway, Matthias Kohler, Deborah L. Stoliker, Glenn D. Jolly
Quantifying chemical weathering rates along a precipitation gradient on Basse-Terre Island, French Guadeloupe: new insight from U-series isotopes in weathering rinds
Inside soil and saprolite, rock fragments can form weathering clasts (alteration rinds surrounding an unweathered core) and these weathering rinds provide an excellent field system for investigating the initiation of weathering and long term weathering rates. Recently, uranium-series (U-series) disequilibria have shown great potential for determining rind formation rates and quantifying factors co
Authors
Jacqueline M. Engel, Linda May, Peter B. Sak, Jerome Gaillardet, Minghua Ren, Mark A. Engle, Susan L. Brantley
Wastewater disposal from unconventional oil and gas development degrades stream quality at a West Virginia injection facility
The development of unconventional oil and gas (UOG) resources has rapidly increased in recent years; however, the environmental impacts and risks are poorly understood. A single well can generate millions of liters of wastewater, representing a mixture of formation brine and injected hydraulic fracturing fluids. One of the most common methods for wastewater disposal is underground injection; we ar
Authors
Denise M. Akob, Adam Mumford, William H. Orem, Mark A. Engle, Julia (Grace) Klinges, Douglas B. Kent, Isabelle M. Cozzarelli
Geochemistry of formation waters from the Wolfcamp and “Cline” shales: Insights into brine origin, reservoir connectivity, and fluid flow in the Permian Basin, USA
Despite being one of the most important oil producing provinces in the United States, information on basinal hydrogeology and fluid flow in the Permian Basin of Texas and New Mexico is lacking. The source and geochemistry of brines from the basin were investigated (Ordovician- to Guadalupian-age reservoirs) by combining previously published data from conventional reservoirs with geochemical resul
Authors
Mark A. Engle, Francisco R. Reyes, Matthew S. Varonka, William H. Orem, Ma Lin, Adam J. Ianno, Tiffani M. Westphal, Pei Xu, Kenneth C. Carroll
Volatile-organic molecular characterization of shale-oil produced water from the Permian Basin
Growth in unconventional oil and gas has spurred concerns on environmental impact and interest in beneficial uses of produced water (PW), especially in arid regions such as the Permian Basin, the largest U.S. tight-oil producer. To evaluate environmental impact, treatment, and reuse potential, there is a need to characterize the compositional variability of PW. Although hydraulic fracturing has ca
Authors
Naima A. Khan, Mark A. Engle, Barry Dungan, F. Omar Holguin, Pei Xu, Kenneth C. Carroll
A practical guide to the use of major elements, trace elements, and isotopes in compositional data analysis: Applications for deep formation brine geochemistry
In the geosciences, isotopic ratios and trace element concentrations are often used along with major element concentrations to help determine sources of and processes affecting geochemical variation. Compositional Data Analysis (CoDA) is a set of tools, generally attuned to major element data, concerned with the proper statistical treatment and removal of spurious correlations from compositional d
Authors
Madalyn S. Blondes, Mark A. Engle, Nicholas Geboy