Department of Geological Sciences

University of Texas at Austin

Austin, TX 78727

(512) 471-5759

Doctoral candidate, University of Texas at Austin, Austin, TX. Dissertation title: "Nutrient-driven colonization and weathering of silicates".

B. S. cum laude, Geology, Trinity University, San Antonio, TX (1995)

USGS Toxics Site at Bemidji, MN (1996-present): Geochemical sampling of groundwater, soil gas, GC analysis of methane and BTEX in groundwater, anaerobic sampling for subsurface microorganisms, sediment and groundwater, MPN analysis, in situ microcosm emplacement and retrieval.

Glacial Lake Agassiz Peatlands, MN (1997-present): Geochemical sampling of groundwater in a fen and a bog. In situ microcosm emplacement and retrieval, anaerobic sampling for subsurface microorganisms, peat and groundwater for laboratory microcosms.

Sinton, TX (1996): Use of geoprobe, soil gas analysis of hydrocarbons to determine location of uncapped oil well.

Keck Consortium Summer Research in Igneous petrology, Gouldsboro, ME (1994): Mapping of geologic units, petrologic description of geologic units and interpretation of spatial relationships of magmas, rock sampling.

NSF Graduate Research Trainee: Groundwater geochemical analysis using GC, BET, spectrophotometers, carbon analyzer and HPLC and microscopic analysis of minerals and microorganisms using conventional and environmental SEM, as well as reflected and fluorescence microscopy. In addition to research training, the GRT includes 1 year of teaching, experience, proposal writing and manuscript preparation, in order to prepare doctoral students for a career in academic research and teaching.

Teaching Assistant: Introduction to Physical and Chemical Hydrogeology (Spring, 1998, 1999), Chemical Hydrogeology (Spring, 1998, 1999), Field Methods in Hydrogeology (Summer 1998, guest lecture 1999), University of Texas at Austin, Austin, TX

Student Researcher: Isotope Geochemistry Group, Los Alamos National Laboratory, Los Alamos, NM. Uranium chemistry and analysis (1992), Technecium chemistry and analysis (1993, 1994).

Advisors: Drs. David Curtis and Paul Dixon.

Student Researcher: Southwest Research Institute, San Antonio, TX. Data entry (1994)

Advisor: Dr. William Murphy.

Bennett, P.C., Rogers, J.R., Hiebert, F.K, and Choi, W.J. (1999) Mineralogy, mineral weathering, and microbial ecology. Geology, submitted.

Bennett, P.C., Hiebert, F.K., and Rogers, J.R. (1999) Microbial control of mineral-water equilibria macroscale to microscale. Hydrogeology Journal, in review.

Rogers, J.R., Bennett, P.C., and Hiebert, F.K. (1999) Patterns of microbial colonization on silicates, in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999—Volume3 of 3--Contamination of Hydrologic Systems and Related Ecosystems: U.S. Geological Survey Water-Resources Investigations Report 99-4018B, pp. 237-242.

Rogers, J.R., Bennett, P.C., and Choi, W.J. (1998) Feldspars as a source of nutrients for microorganisms. American Mineralogist, 83, 1532-1540.

Abstracts

             Rogers, J.R. Bennett, P.C., Hiebert, F.K., and Ullman, W.J. (1999) Bacterial mobilization of phosphate from silicates. Geological Society of America Annual Meeting, Denver, CO.

Geological Society of America, Member

Mineralogical Society of America, Member

Association of Groundwater Scientists and Engineers, Member