Dr. Engle is a professor in the Department of Geological Sciences, who previously worked at the U.S. Geological Survey (~14), and in environmental consulting (~5 years).

• Ph D in Hydrogeology, University of Nevada, Reno (2005)
• MS in Hydrogeology, University of Nevada, Reno (2003)
• BS in Geology and Environmental Chemistry, The Evergreen State College (1997)

• Can we beneficially reuse produced water from oil and gas extraction in the U.S.? Science of the Total Environment 717 (2020), Bridget R. Scanlon, Robert C. Reedy, Pei Xu, Mark Engle, J.P. Nicot, David Yoxtheimer, Qian Yang, Svetlana Ikonnikova.
• Chemical Composition of Formation Water in Shale and Tight Reservoirs: A Basin‐Scale Perspective John Wiley & Sons, Inc. (2020), Yousif Kharaka, Kathleen Gans, Elisabeth Rowan, James Throdsen, Christopher Conaway, Madalyn Blondes, Mark Engle.
• Compositional analysis of formation water geochemistry and microbiology of commercial and carbon dioxide-rich wells in the southwestern United States US Geological Survey Scientific Investigations Report 2020–5037 (2020), Jenna L. Shelton, Robert S. Andrews, Denise M. Akob, Christina A. DeVera, Adam C. Mumford, Mark Engle, Michael R. Plampin, Sean T. Brennan.
• Direct trace element determination in oil and gas produced waters with inductively coupled plasma-optical emission spectrometry: Advantages of high-salinity tolerance Geostandards and Geoanalytical Research 44 (2020), Aaron M. Jubb, Mark Engle, Jessica M. Chenault, Madalyn S. Blondes, Cloelle G. Danforth, Colin Doolan, Tanya J. Gallegos, Dan Mueller, Jenna L. Shelton.
• Origin and geochemistry of formation waters from the lower Eagle Ford Group, Gulf Coast Basin, south central Texas Chemical Geology 550 (2020), Mark Engle, Colin A. Doolan, Janet A. Pitman, Matthew S. Varonka, Jessica Chenault, William H. Orem, Peter B. McMahon, Aaron M. Jubb.

• Mineral extraction potential from produced waters - State of the science (2020), Volume Webinar, Mark Engle.
• Hydrogen-bonding networks in highly saline brines from the Lower Eagle Ford Group: Implications for wettability of continuous reservoirs (2019), Volume San Francisco, California, Aaron Jubb, Mark Engle.
• Organic substances in wastewater from continuous oil and gas production in the Permian Basin (2019), Volume San Francisco, California, William Orem, Matthew Varonka, Tiffani Schell, Isabelle Cozzarelli, Denise Akob, Mark Engle, Terry Gregston.
• G0001. Mathematics overcame the statistical problems of closure: Has it solved real-world geochemical problems? (2018), Volume Olomouc, Czech Republic, Mark Engle, Nicholas E. Pingitore.
• Geochemistry of atmospheric particulates in the vicinity of mountaintop coal mines, West Virginia, USA (2012), Volume Charlotte, North Carolina, Allan Kolker, Mark Engle, William H. Orem, Lynn M. Crosby, Calin A. Tatu, Nicholas J. Geboy, Michael Hendryx, Michael McCawley, Matthew S. Varonka, Laura Esch.

• Space and Seed Grant Proposal to Establish a “One Water” Cluster in the Interdisciplinary Research Building, University of Texas at El Paso