| Organic substances in produced and formation water from unconventional natural gas extraction in coal and shale W Orem, C Tatu, M Varonka, H Lerch, A Bates, M Engle, L Crosby, ... International Journal of Coal Geology 126, 20-31, 2014 | 365 | 2014 |
| Catalytic C H Amination with Unactivated Amines through Copper (II) Amides S Wiese, YM Badiei, RT Gephart, S Mossin, MS Varonka, MM Melzer, ... Angewandte Chemie 122 (47), 9034-9039, 2010 | 196 | 2010 |
| Geochemistry of formation waters from the Wolfcamp and “Cline” shales: Insights into brine origin, reservoir connectivity, and fluid flow in the Permian Basin, USA MA Engle, FR Reyes, MS Varonka, WH Orem, L Ma, AJ Ianno, TM Schell, ... Chemical Geology 425, 76-92, 2016 | 176 | 2016 |
| Synthesis and structure–activity evaluation of isatin-β-thiosemicarbazones with improved selective activity toward multidrug-resistant cells expressing P-glycoprotein MD Hall, KR Brimacombe, MS Varonka, KM Pluchino, JK Monda, J Li, ... Journal of medicinal chemistry 54 (16), 5878-5889, 2011 | 125 | 2011 |
| Relationships between water and gas chemistry in mature coalbed methane reservoirs of the Black Warrior Basin JC Pashin, MR McIntyre-Redden, SD Mann, DC Kopaska-Merkel, ... International Journal of Coal Geology 126, 92-105, 2014 | 81 | 2014 |
| The effect of coal bed dewatering and partial oxidation on biogenic methane potential EJP Jones, SH Harris, EP Barnhart, WH Orem, AC Clark, MD Corum, ... International Journal of Coal Geology 115, 54-63, 2013 | 68 | 2013 |
| Atmospheric particulate matter in proximity to mountaintop coal mines: sources and potential environmental and human health impacts L Kurth, A Kolker, M Engle, N Geboy, M Hendryx, W Orem, M McCawley, ... Environmental geochemistry and health 37, 529-544, 2015 | 66 | 2015 |
| Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations W Orem, M Varonka, L Crosby, K Haase, K Loftin, M Hladik, DM Akob, ... Applied Geochemistry 80, 155-167, 2017 | 63 | 2017 |
| Three-coordinate N-heterocyclic carbene nickel nitrosyl complexes MS Varonka, TH Warren Organometallics 29 (4), 717-720, 2010 | 51 | 2010 |
| Enhanced coal-dependent methanogenesis coupled with algal biofuels: Potential water recycle and carbon capture EP Barnhart, KJ Davis, M Varonka, W Orem, AB Cunningham, ... International Journal of Coal Geology 171, 69-75, 2017 | 43 | 2017 |
| Origin and geochemistry of formation waters from the lower Eagle Ford Group, Gulf Coast Basin, south central Texas MA Engle, CA Doolan, JA Pitman, MS Varonka, J Chenault, WH Orem, ... Chemical Geology 550, 119754, 2020 | 28 | 2020 |
| S-Nitrosothiol and Nitric Oxide Reactivity at Zinc Thiolates MS Varonka, TH Warren Inorganic chemistry 48 (13), 5605-5607, 2009 | 21 | 2009 |
| S-nitrosothiol and nitric oxide reactivity at β-diketiminato zinc thiolates MS Varonka, TH Warren Inorganica chimica acta 360 (1), 317-328, 2007 | 21 | 2007 |
| Toxicological and chemical studies of wastewater from hydraulic fracture and conventional shale gas wells LM Crosby, CA Tatu, M Varonka, KM Charles, WH Orem Environmental toxicology and chemistry 37 (8), 2098-2111, 2018 | 14 | 2018 |
| Geogenic organic contaminants in the low-rank coal-bearing Carrizo-Wilcox aquifer of East Texas, USA J Chakraborty, M Varonka, W Orem, RB Finkelman, W Manton Hydrogeology Journal 25 (4), 1219, 2017 | 13 | 2017 |
| Organic compounds in produced waters from the Bakken formation and three forks formation in the Williston Basin, North Dakota MS Varonka, TJ Gallegos, AL Bates, C Doolan, WH Orem Heliyon 6 (3), 2020 | 12 | 2020 |
| Decadal trends of mercury cycling and bioaccumulation within Everglades National Park SE Janssen, MT Tate, BA Poulin, DP Krabbenhoft, JF DeWild, JM Ogorek, ... Science of the Total Environment 838, 156031, 2022 | 11 | 2022 |
| In situ enhancement and isotopic labeling of biogenic coalbed methane EP Barnhart, LF Ruppert, R Hiebert, HJ Smith, HD Schweitzer, AC Clark, ... Environmental Science & Technology 56 (5), 3225-3233, 2022 | 8 | 2022 |
| Water chemistry in areas with surface mining of coal W Orem, C Tatu, L Crosby, MS Varonka, A Bates, M Engle, M Hendryx Geological Society of America Annual Meeting and Exposition, Charlotte, NC, 2012 | 8 | 2012 |
| beta-DIKETIMINATE-SUPPORTED MANGANESE AND ZINC COMPLEXES HW Roesky, MS Varonka, TH Warren Inorganic Syntheses 35, 34-38, 2010 | 8 | 2010 |
Mark EngleUniversity of Texas at El PasoVerified email at utep.edu
