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College of Arts & Sciences

Dina Lopez

Lopez

Professor & Department Chair

Geological Sciences
306 Clippinger Laboratories
lopezd@ohio.edu
740-593-9435

Recent News

Education

Ph.D., 1992, Louisiana State University (Geology)

M.S., 1979, Virginia Polytechnic Inst. and State Univ. (Physics)

B.S., 1975, Universidad de El Salvador (Chemistry)

Research Interests

Geochemistry

  • Environmental geochemistry
  • Geochemistry of hydrothermal systems
  • Fluid flow and heat transfer
  • Volcanic soil degassing
  • Acid mine drainage (AMD)

In recent years, my research has taken a twist to the investigation of the environmental causes of chronic kidney disease of unknown etiology in El Salvador. Probably causes for this illness seem to be the application of pesticides that affect the kidney probably associated to arsenic in drinking water and other secondary factors. For that research, we are using geographical weighted regression and other tools for assessing the relationships between the environmental variables and the prevalence of the illness.

In general, my research interests include the geochemistry and hydrogeology of geothermal systems (including diffuse soil degassing and heat flow studies), and environmental problems such as acid mine drainage and arsenic contamination in water. At the present time, my areas of research in geothermal systems are located in Central America (El Salvador), and in Canary Islands, Spain. The release of gases from the magmatic environment, their incorporation to the groundwater system, and their release to the air at the soil-air interface can provide important information about the volcanic activity, fluid paths, and preferential routes of circulation in the upper crust. This information is important for geothermal energy exploitation as well as for volcanic monitoring.

I am also interested in environmental problems associated with mining and resource exploitation. Within Ohio, I investigate the chemistry, fluid flow, and mass transfer associated with acid mine drainage from coal mines. The exploitation of sulfide-rich coal in this region produces mine drainage of low pH and high acidity and metal concentrations (mainly iron, aluminum, and manganese) affecting hundreds of miles of streams and aquatic life. I investigate the hydrology of abandoned coal mines and the fate of the acid mine drainage chemicals in the environment. In addition, I have also investigated a closed uranium mine in Brazil. At this mine, waste rock piles are releasing acidic waters rich in aluminum, manganese, and iron as well as uranium. Treatment of the acid mine drainage there is a huge economical burden and new alternatives for remediation need to be implemented. I am also investigating arsenic in volcanic lakes and groundwaters, and acid mine drainage problems in El Salvador.

I belong to the Appalachian Watersheds Research Group of Ohio University. This group has a multidisciplinary approach to the study of acid mine drainage problem and treatment. During the recent years we have focused in studying the relationship between the physics of the flow, the chemistry of water and sediments, and the biology of the stream in the acid mine drainage problem, especially in the response to remediation, such as alkalinity additions.

Courses Taught

  • GEOL 2050: Statistical Methods in Geology
  • GEOL 2310: Water and Pollution
  • GEOL 4/5050: Modeling and Computer Methods in Geology
  • GEOL 4/5270: Water Geochemistry
  • GEOL 4/5280: Physical Geochemistry
  • GEOL 4/5290: Contaminant Geochemistry
  • GEOL 4/5710: Advanced Environmental Geology
  • GEOL 4/5810: Groundwater Flow Modeling
  • GEOL 4/5820: Transport Processes in Groundwater

Professional Appointments

2008-present, Professor

2001-2008, Associate Professor

1995-2001, Assistant Professor

Representative Publications

  • Acid Mine Drainage and Other Contaminant Problems Publications
  • Mejía, R., Quinteros, E., López, A., Ribó, A., Cedillos, H., Orantes, C.M., Valladares, E., López, D.L., 2014. Pesticide-Handling Practices in Agriculture in El Salvador: An Example from 42 Patient Farmers with Chronic Kidney Disease in the Bajo Lempa Region. Occupational Diseases and Environmental Medicine, v. 2, pp. 56-70.
  • Astray Dopazo, G., González-Temes, M., López, D.L., Mejuto, J.C., 2014. Density, viscosity and refractive index prediction of binary and ternary mixtures systems of ionic liquid. Mediterr. J. Chem., vo. 3, No. 4, pp. 972-986.
  • Silva, N.C., Chaga, E.G.l., Abreu, C.B., Dias, D.C.S., Lopez, D., Guerreiro, E.T.Z., Alberti, H.L.C., Braz, M.L., Branco, O., and Fleming, P., 2014. Radon as a natural tracer for gas transport within uranium waste rock piles. Radiation Protection Dosimetry (2014), pp. 1–4.
  • VanDervort, D.R.; López, D.L.; Orantes, C.M.;Rodríguez, D.S; 2014. Spatial Distribution of Unspecified Chronic Kidney Disease in El Salvador by Crop Area Cultivated and Ambient Temperature, MEDICC Review, Vol 16, No 2, pp. 31-38.
  • Kruse, N.A; Bowman, J.; López, D.; Migliore, E.; Jackson, G.P.; 2014. Characterization and fate of polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in soils and sediments at the Portsmouth Gaseous Diffusion Plant, Ohio. Chemosphere, v. 114, pp. 93–100.
  • Kruse, N.A.; Stoertz, M.W.; Green, D.H.; Bowman, J.R.; López, D.L.; 2014. Acidity Loading Behavior in Coal-Mined Watersheds, Mine Water Environ v.33, p.177–186.
  • Das Chagas, E.G.L.; Abreu, C.B.; Dias, D.C.S.; López, D.; Guerrero, E.T.Z.; Alberti, H.L.C.; Couto, J.A.; Braz, M.L.; Silva, N.C.; Branco, O.; Fleming, P.M.; 2013. O Rn-222 como traçador natural no estudo de transporte de gases no interior de pilhas de estéreis de mineraçao. 2013 International Nuclear Atlantic Conference - INAC 2013 Recife, PE, Brazil, November 24-29, 2013 ASSOCIAÇÃO BRASILEIRA DE ENERGIA NUCLEAR - ABEN ISBN: 978-85-99141-05-2.
  • Ribó A., Vela Parada. E., Quinteros, E., Mejía, R., C. M. Orantes, C.M., Molinas Daví, J., López, D.L.. 2014. (GEONEFROSALVA, una plataforma SIG en software libre, parala caracterización de los factores de riesgo de la enfermedad renal crónica de causas no tradicionales que afecta la población agrícola de El Salvador. VIII Jornadas de SIG Libre, Universitat de Girona, Girona, Spain, March 26-27, 2014. http://www.sigte.udg.edu/jornadassiglibre/uploads/2014/articulos/art7.pdf
  • Astray, G.; González-Temes, M.; López, D., 2013. Modelos de predicción basados en inteligencia artificial. Revista Investigación, Cultura, Ciencia y Tecnología, Universidad de Vigo, Galicia, Spain, pp. 34-41.
  • Kruse Daniels, N.A.; DeRose, L.; Korenowski, R.;Bowman, J.R.; Mackey, A.L.; López, D.L., Johnson, K., Rankin, E., 2013. The role of remediation, natural alkalinity sources and physical stream parameters in stream recovery, Journal of Environmental Management 128, pp. 1000-1011.
  • Kruse Daniels, N.A.; Bowman, J.R.; Mackey, A.L.; López, D.L., 2013. A comparative study of lime doser treatment. International Mine Water Association 2013 Annual Meeting, Wolkersdorfer, Brown & Figueroa Editors. Golden, Colorado, pp. 103-105.
  • Bowman, J.; López, D.; Kruse, N.; and Migliore, E.; 2013. Preliminary assessment of polychlorinated biphenyl (PCBs) congeners, aroclors, dioxins, and furans in the sediment and soil at the United States Department of Energy (DOE) Portsmouth gaseous diffusion plant (PORTS), Piketon, Ohio. Report presented to the United States Department of Energy (DOE) by Ohio University PORTSfuture Project. Athens, Ohio. 106 pages.
  • Gbolo, P. and López, D.L., 2013. Chemical and Geological Control on Surface Water within the Shade River Watershed in Southeastern Ohio, Journal of Environmental Protection, Vol. 4 No. 1, 2013, pp. 1-11. doi: 10.4236/jep.2013.41001.
  • Gómez-Puentes. F.J.; Reyes-López, J.A.; López, D.L.; Carreón-Diazconti, C.; and Belmonte-Jiménez, S., 2013. Geochemical processes controlling the groundwater transport
    of contaminants released by a dump in an arid region of México. Environ Earth Sci
    DOI 10.1007/s12665-013-2456-2
  • Lopez, D.L.; Bundschuh, J; Birkle, P.; Armienta, M.A.; Cumbal, C.; Sracek, O.; Cornejo, C.; Ormachea, M., 2012. Arsenic in volcanic geothermal fluids of Latin America. In: Arsenic in Latin America Special Issue, J. Bunschuh editor, Science of the Total Environment, v. 429, p. 57-75.
  • Bundschuh, j.; Liu C.W; Jean, J.S., Armienta, M.A., Moreno López, M.V., Lopez, D.L., Cornejo, L., Fagundes, L., Lauer Macedo, L., Tenuta, A.. 2012. Arsenic in the human food chain: The state-of-the-art knowledge in Latin America. In: Arsenic in Latin America Special Issue, J. Bunschuh editor, Science of the Total Environment, v. 429, p. 92-106.
  • Bundschuh, J., Litter, M.I., Parvez, F., Román-Ross, G., Nicolli, H.B., Jean, J.S.,, Liu, C.W., López, D.L., Armienta, M.A., Guilherme, L.R.G., Gomez Cuevas, A., Cornejo, L., Cumbal, L., Toujaguezz, R., 2012. One century of arsenic exposure in Latin America: A review of history and occurrence from 14 countries . In: Arsenic in Latin America Special Issue, J. Bunschuh editor, Science of the Total Environment, v. 429, p. 2-35.
  • Diffuse Soil Degassing and Hydrothermal Process Publications
  • Hernández, P., Calvari, S., Ramos, A., Pérez, N.P., Márquez, A., Roberto Quevedo, Barrancos, J., Padrón, E., Padilla, G.D., López, D., Rodríguez, A., Melián, G.V., Dionis, S., Rodríguez, F., Calvo, D., and Spampinato, L. 2014. Magma emission rates from shallow submarine eruptions using thermal airborne imaging. Remote Sensing of Environment, vol. 154, pp. 219-225.
  • López, D. L.,Bundschuh, J., Birkle, P., Armienta, M.A., Cumbal, L., Sracek, O., Cornejo, L., Ormachea, M., 2012. Arsenic in volcanic geothermal fluids of Latin America, Science of The Total Environment, 429, 57-75, doi: 10.1016/j.scitotenv.2011.08.043.
  • Marrero, R., López, D., Pérez, N., Custodio, E., 2011. Implicaciones de la composición isotópica del agua y de la relación Cl/Br en la interpretación de los procesos hidrogeológicos del acuífero de Las Cañadas del Teide, Tenerife, Islas Canarias. Libro Homenaje Prof. Emilio Custodio "Cuatro décadas de investigación y formación en águas subterráneas", AIH-GE, Zaragoza, pp. 383-391. ISBN: 978-84-938046-1-9.
  • Bennati, L., Finizola, A., Walker, J.A., López, D.L., Camilo Higuera-Diaz, I., Schütze, C., Barahona, F., Cartagena, R., Conde, V., Funes, R., Rios, C., 2011. Fluid circulation in a complex volcano-tectonic setting, inferred from self-potential and soil CO2 flux surveys: The Santa María–Cerro Quemado–Zunil volcanoes and Xela caldera (Northwestern Guatemala), Journal of Volcanology and Geothermal Research, 199(3–4), 216-229, doi: 10.1016/j.jvolgeores.2010.11.008.
  • Marrero, R., Pérez, N.M., López, D.L., Custodio, E. ,2010. Modelo Hidrogeoquímico del acuífero de Las Cañadas del Teide, Tenerife, Islas Canarias. Jornadas sobre “El conocimiento de los recursos hídricos en Canarias cuatro décadas después del proyecto SPA-15”. Libro Homenaje póstumo al Ingeniero D. José Sáenz de Oiza, Las Palmas de Gran Canaria, Spain, 14 December 2010. pp 81-86. ISBN: 978-84-938046-0-2. 
  • Cumbal, Luis, Vallejo, Paulina, Rodriguez, Brigida, López, D.L., 2010. Arsenic in geothermal sources at the north-central Andean region of Ecuador: concentrations and mechanisms of mobility, Environmental Earth Sciences, 61(2), 299-310, doi: 10.1007/s12665-009-0343-7. López, Dina L., Ransom, L., Monterrosa, J., Soriano, T., Barahona, F., Olmos, R., and Bundschuh, J., 2009. Volcanic arsenic and boron pollution of Ilopango Lake, El Salvador. In Natural Arsenic in Groundwater of Latin America, J. Bundschuh, Armienta, M., Birkle, P., Bhattacharya, P., Matschullat, J., A. B Mukherjee, A.B. editors, Taylor & Francis, p. 129-143.
  • López, D. L., Matus, A., Castro, C., Magana, M.I., and Sulllivan, M., 2008. Implications of temporal changes in solute concentrations for the mass balance of the Berlin Geothermal Reservoir, Geothermal Resources Council Transactions, vol. 32, p. 459-465.
  • Marrero, R., López, D. L., Hernandez, P.A., and Perez, N.M., 2008. Carbon dioxide discharged through the Las Canadas aquifer, Tenerife, Canary Islands. In "Terrestrial fluids, earthquakes and volcanoes: The Hiroshi Wakita Volume II", Pure and Applied Geophysics (PAGEOPH), vol. 165, p. 147–172.
  • Olmos, R., Barrancos, J., Rivera, C., Barahona, F., López, D. L., Henriquez, B., Hernandez,A., Benitez,B., Hernandez, P.A., Perez, N.M., Galle, B., 2007. Anomalous emissions of SO2 during the recent eruption of Santa Ana Volcano, El Salvador, Central America. In "Terrestrial fluids, earthquakes and volcanoes: The Hiroshi Wakita Volume II", Pure and Applied Geophysics (PAGEOPH), vol 164, p. 2489-2506.
  • Perez, N.M., Hernandez, P. A., Padron, E., Cartagena, R., Olmos, R., Barahona, F., Melian, G., Salazar, P. and López, D. L., 2006. Anomalous diffuse CO2 emission prior the January 2002 short-term unrest at San Miguel volcano, El Salvador, Central America, in "Terrestrial fluids, earthquakes and volcanoes: The Hiroshi Wakita Volume I", McGee, K., King, Chi-Yu, Gurrieri, S., and Perez, N.M. editors, Pure and Applied Geophysics (PAGEOPH), vol. 163, p. 883-896.
  • López, D. L., Bundschuh, J., Soto, G.J., Fernandez, J.F., and Alvarado, G.E., 2006. Chemical evolution of thermal springs at Arenal volcano, Costa Rica: Effect of volcanic activity, precipitation, seismic activity, and earth tides. Journal of Volcanology and Geothermal Research, v. 157, p. 166-181.
  • López, D. L., Castro, M., Matus, A., Reyes López, J., Guevara, W., Montalvo, F., and Guerra, C.E., 2006. Assessment of silica scaling around injection wells of the Berlin Geothermal Field, El Salvador, using field experiments and chemical modeling, Geothermal Resources Council Transactions, Vol. 30, p. 501-506.
  • Castro, M., López, D. L., Reyes, J.A., Matus, A., Montalvo, F., and Guerra, C.E., 2006. Expected silica scaling from reinjection waters after installation of a binary cycle power station at Berlin Geothermal Field, El Salvador, Central America, Geothermal Resources Council Transactions, Vol. 30, p. 487-494.
  • Magana, M.I., Henriquez, E., and López, D. L., 2006. Anomalies in the content of radon gas and presence of hydrothermal alteration in Chipilapa Geothermal Area. Geothermal Resources Council Transactions, Vol. 30, p. 487-494.
  • Castro, M.R., López, D. L., Reyes, J.A., Montalvo, F.E., Montalvo, Romero, R., Ramirez Hernandez, J., Lazaro Mancilla, O., 2006. Modeling Scaling of Silica at Reinjection Wells at Berlin Geothermal Field, El Salvador, Central America. Proceedings 31st Stanford Geothermal Workshop Geothermal Reservoir Engineering Jan 30-Feb 1, 2006 Stanford, California, p. 408-415.
  • López, D. L., Padron, E., Magana, M.I., Gomez, L., Barrios, L.A., Perez, N.M. and Hernandez, P. 2004. Structural Control on Thermal Anomalies and Diffuse Surficial Degassing at Berlin Geothermal Field, El Salvador. Geothermal Resources Council Transactions, Vol. 28, p. 477-483.
  • Magana, M.I., López, D. L., Barrios, L.A., Perez, N.M., Padron, E., and Henriquez, E., 2004. Diffuse and Convective Degassing of Soil Gases and Heat at the TR-6-Zapotillo Hydrothermal Discharge Zone, Berlin Geothermal Field, El Salvador. Geothermal Resources Council Transactions, Vol. 28, p. 485-488.
  • López, D. L., Ransom, L., Perez, N., Hernandez, P. and Monterrosa, J., 2004.Dynamics of diffuse degassing at Ilopango Caldera, El Salvador. Rose, W.I., Bommer, J.J., López, Dina L., Carr, M.J., and Major, J.J. editors, Geological Society of America Special Paper No. 375 "Natural Hazards in El Salvador", pp. 191-202.
  • Cartagena, R., Olmos, R., López, D. L. Soriano, T., Barahona,F., Hernandez, P. and Perez, N., 2004. Diffuse soil degassing of carbon dioxide, radon, and mercury at San Miguel Volcano, El Salvador Rose, W.I., Bommer, J.J., López, Dina L., Carr, M.J., and Major, J.J. editors, Geological Society of America Special Paper No. 375 "Natural Hazards in El Salvador", pp. 203-212.
  • Salazar, J.M.L., Hernandez, P.A., Perez, N.M., Olmos, R., Barahona, F., Cartagena, R., Soriano, T., López, D. L., and Notsu, K., 2004. Spatial and temporal variations of diffuse CO2 degassing at Santa Ana-Izalco-Coatepeque volcanic complex, El Salvador, Central America. Rose, W.I., Bommer, J.J., López, Dina L., Carr, M.J., and Major, J.J. editors, Geological Society of America Special Paper No. 375 "Natural Hazards in El Salvador", pp. 135-146.
  • Perez, N.M., Salazar, J.M.L., Hernandez, P.A., Olmos, R., Barahona, F., Cartagena, R., Soriano, T., López, D. L., and Notsu, K., 2004. Diffuse CO2 and 222Rn degassing from San Salvador volcano, El Salvador, Central America. Rose, W.I., Bommer, J.J., López, Dina L., Carr, M.J., and Major, J.J. editors, Geological Society of America Special Paper No. 375 "Natural Hazards in El Salvador", pp. 227-236.
  • Magaña, M.I., Henríquez, E., and López, D., 2003. Study on diffuse degassing and alteration mineralogy in the Berlin Geothermal Field. Proccedings of the International Geothermal Conference, Reykjavík, Sept. 2003, pp. 33- 39.
  • Padrón, E., López, D.L., Magaña, M.I., Marrero, R., and Pérez, N.M., 2003. Diffuse degassing and relation to structural flow paths at Ahuachapan Geothermal Field, El Salvador. Geothermal Resources Council Transactions, vol. 27, pp. 325-330.
  • Salazar, J.M.I., Pérez, N.M., Hernández, P.A., Soriano, T., Barahona, F., Olmos, R., Cartagena, R., López, D.L., Lima, N., Melián, G., Castro, L., Galindo, I., and Notsu, K., 2002.Precursory diffuse carbon dioxide soil degassing signatures of recent earthquakes in El Salvador, Central America. Earth and Planetary Sciences Letters. , Vol. 205, p. 81-89.
  • Magaña, M.I., López, D.L., Tenorio, J., and Matus, A., 2002. Radon and carbon dioxide diffuse soil degassing at Ahuachapan Geothermal Field, El Salvador. Geothermal Resources Transactions, Vol. 26, p. 341-344.
  • López, D. L., 2002. On the interpretation of conductive heat flow anomalies near fault zones. Geothermal Resources Transactions, Vol. 26, p. 437-441.
  • López, Dina L., Cobb, Mark C., Golding, Sue, and Glikson, Miryam, 1999. Modeling hydrothermal maturation of coal and generation of coal seam gas. In Coalbed Methane: Scientific, Environmental and Economic Evaluation, Matalerz, M., Glikson, M., Golding, S.D. (editors), pp. 423-434.
  • Cobb, Mark C., López, Dina L., Glikson, Miryam, and Golding, Sue. 1999. Simulating the conductive and hydrothermal maturation of coals and coal seam gas in the Bowen Basin, Australia. In Coalbed Methane: Scientific, Environmental and Economic Evaluation, Matalerz, M., Glikson, M., Golding, S.D. (editors), pp. 435-448.
  • López, D.L., and Smith, L., 1996. Fluid flow in fault zones: Influence of hydraulic anisotropy and heterogeneity on the fluid flow and heat transfer regime, Water Resour. Res., vol. 32, pp. 3227-3235.
  • Smith, L., López, D.L., Beckie, R., Morin, K., Dawson, R., and Price, W., 1995, Hydrogeology of Waste Rock Piles, Department of Natural Resources Canada CANMET, 130 pp.
  • López, D. L., and Smith, J. L., 1995. Fluid flow in fault zones: Analysis of the interplay of convective circulation and topographycally-driven groundwater flow. Water Resour. Res. v. 31 , pp. 1489-1503.
  • López, D. L., Smith, L., and Sorey, M.L. 1994. Modeling fluid flow and heat transfer at Basin and Range faults: Preliminary results for Leach Hot Springs, Nevada. Geothermal Resources Transactions, Vol. 18, 11-16.
  • López, D. L., and Williams, S. N., 1993. Catastrophic volcanic collapse: relation to hydrothermal processes. Science, Vol. 260, 1794-1796.
  • Williams, S. N., Schaefer, S.J., Calvache, M.L., and Lopez, D., 1992. Global carbon dioxide emission to the atmosphere by volcanoes. Geochim. Cosmochim. Acta 56, 1765-1770.

Recent Titles of Advisee's Completed Theses

  • Richardson, Joshua. Thermal and Hydrological Study of Flooded Abandoned Coal Mines in Ohio as Potential Heat Exchangers. M. Sc. in Geology, 2014, Ohio University.
  • Schleich, Katharine L.. Geochemical Modeling of Processes Affecting Water and Sediment Chemistry and their Relationship to Biological Recovery in an Acid Mine Drainage Remediated Stream, M. Sc. in Geology, 2014, Ohio University.
  • Dettmer, Adam. Determination of Baseline Radon Concentrations in Groundwater in Southeast Ohio, B. Sc. in Geology 2013, Ohio University.
    Korenowsky, Rebekah, Hydrogeochemical analysis of alkalinity and heavy metal inputs on water and sediment quality of an acid mine drainage remediated stream: Hewett Fork, Southeastern Ohio. B. Sc. in Geology, 2012.
    Vandervort, Darcy, Investigating the possible chemical and physical causes of chronic kidney disease in El Salvador, B. Sc. in Geology, 2012.
    DeRose, Lisa M., Physical and Chemical Controls on Natural and Anthropogenic Remediation of Two Streams Impacted by Acid Mine Drainage in the Raccoon Creek Watershed, Ohio, M.S. Thesis, 2011.
  • Marrero Díaz, Rayco. Modelo Hidrogeoquímico del Acuífero de
    Las Cañadas del Teide, Tenerife, Islas Canarias. Ph. D. Thesis (codirected with Nemesio Pérez). Universidad Politécnica de Cataluña, Departamento de Ingenieria del Terreno, Cartografía y Geofísica, 2010.
  • Cook, Shannon, The Hydrogeology of an Old Growth Forest with Implications for Defining Impact Zones Associated with Underground Mining, M.S. Thesis, 2008.
  • Zhang, Qian, Chemical Characterization of AMD Sediments: Possible Application to Arsenic Remediation, M.S. Environmental Studies Thesis, 2008.
  • Gbolo, Prosper, Chemical and Geological Controls on the Composition of Waters and Sediments in Streams Located within the Western Allegheny Plateau: The Shade River Watershed. M.S. Thesis, 2008.
    Sullivan, Michael, Water Balance of the San Simon River Groundwater Basin, El Salvador, Central America: Implications for the Berlin Geothermal Field, M.S. Thesis, 2008.
  • Larkins, Clayton, Analysis of physical and chemical parameters at Majestic Mine, Athens County, Ohio, and the evaluation of passive remediation efforts, B. Sc. in Geology, 2007.
  • Graham, Amber, Effects of subsidence closure and stream reclamation on the hydrogeochemistry of Majestic Mine, Athens County, Ohio, M.S. Thesis, 2006.
  • Castro, Marlon. Simulation of silica scaling in the reinjection zone of Berlin Geothermal Field, El Salvador, Central America. Master in Engineering Thesis. Universidad de Baja California, Mexicali, Baja California, Mexico, 2006.
  • Amaning, Kwarteng, Streamwater and Sediment Chemistry of Ohio's Western Allegheny Plateau Ecoregion and their Relation to Aquatic Life, M.S. Thesis, 2006.
  • Clinton, Timothy, Natural versus anthropogenic remediation of acid mine drainage in southeast Ohio: an assessment of water and sediment chemistry, M.S. Thesis, 2005.
  • Ruiz, Victoria, Diffuse soil degassing at abandoned underground coal mines. M.S. Thesis, 2003.
  • Soto, Yomari, The impact of the Fajardo Municipal Landfill on Fajardo River, Puerto Rico. M.S. Thesis 2003.
  • Kudel, David. Investigation of heavy metal contamination in Ilopango Lake, El Salvador, Central America, M.S. Environmental Studies Thesis
    Ransom, Loretta, Volcanic diffuse soil degassing and lake chemistry of the Ilopango Caldera system, El Salvador, Central America, M.Sc. in Geology, 2002.
  • Doe, Carol F., Hydrological and thermal mechanisms in a burning coal refuse pile: The Misco gob pile, Perry County, Ohio, M.S. Thesis, 2001.
  • Shimala, Jennifer, Hydrogeochemical characterization of the Carbondale wetland, Athens County, Ohio: Evaluation of acid mine drainage remediation alternatives. M.Sc. in Geology, 2000.
  • Carroll, Kenneth C., The transport and fate of acid mine drainage along the Snowfork flowpath in the Monday Creek watershed, Southeastern Ohio, M.S. Thesis, 1999.
  • Hunt, Kristy, The characterization of groundwater flow and trichloroethylene transport in the West Lafayette, Ohio wellfield (Using three dimensional modeling techniques), M.Sc. in Geology, 1999.
  • Prim, Debra, The effect of acid mine drainage on sedimentation processes and water quality at Lake Hope, Lake Hope State Park, Vinton County, Ohio, M.Sc. in Geology, 1999.
  • McCutcheon, Molly, Anthropogenic and volcanic pollution at Coatepeque Lake, El Salvador, Senior Thesis, B.S. in Geology, 1998.
    Pigati, Eric. The Hydrology and Geochemistry of an Abandoned Underground Coal Mine: The Majestic Mine, Athens County, Ohio, M.Sc. in Geology, 1997.
  • Overly, Bryan. The Chemical and Microbiological Variability of Acid Mine Drainage Affecting the Snow Fork Drainage Basin, Ohio: the Essex Underground Mine, M.Sc. in Environmental Studies, 1997.

Memberships

Awards

  • Best Paper Award, 2006 meeting of the Geothermal Resources Council, Geofluids section, for the paper: "Assessment of silica scaling around injection wells of the Berlin Geothermal Field, El Salvador, using field experiments and chemical modeling".
  • Best Paper Award, 2004 meeting of the Geothermal Resources Council, for the paper: "Diffuse and Convective Degassing of Soil Gases and Heat at the TR-6-Zapotillo Hydrothermal Discharge Zone, Berlin Geothermal Field, El Salvador".
  • Victor de Sola 2003 National Award for outstanding contributions to the development of Geothermal Energy in El Salvador, LaGeo (Geothermal Energy Company in El Salvador).
  • Outstanding Faculty Award 1999, 2000, 2001, Department of Geological Sciences, Ohio University, Athens, Ohio.
  • International Fellowship, American Association of University Women 1990-1991.
  • Fellowship, Organization of American States 1988-1990.
  • Scholarship LASPAU (Latin American Scholarship Program of American Universities), 1977-79.

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College of Arts & Sciences