Colors reflect extremeophile organisms that thrive in the hot waters.
Charles E. Brown
Ph.D., Pennsylvania State University
Courses: Physical Geology, Environmental Geology, Historical Geology, Hydrology, Global Climate Change
Research Interests: Dr. Brown has completed research studies centered in the geologic and hydrologic disciplines including digital modeling of groundwater flow and remediation techniques, geochemical fate and contaminant transport modeling, and geostatistics and multivariate statistical modeling applications to water resources and other scientific data. He also has worked on digital simulation modeling of sedimentation and structural processes in geologic basins, oil and gas exploration, hydrodynamics of petroleum and natural gas reservoirs, borehole and surface geophysical applications in geologic basins, environmental issues in geology and science, as well as international energy and time series forecast modeling. He continues to complete research that is related to the subjects above, and is working on a third book entitled “World Water Resources”. Because digital modeling simulation in geology, hydrology, and geochemistry will lead the geologic and hydrologic sciences into the next century, Dr. Brown continues to focus on computer simulation modeling in the various sciences. He is also interested in the cross correlation of geological and biological sciences in solving environmental issues.
Catherine A. Forster
Ph.D., University of Pennsylvania
Tel: (202) 994-1008
Courses: Historical Geology, Sedimentation and Stratigraphy, History of Life
Research Interests: Discovery and collection of Mesozoic age vertebrates, primarily dinosaurs, with field programs in China, Madagascar, and South Africa. Primary description and phylogenetic analysis of dinosaur taxa. My current work focuses on ornithischian dinosaurs, particularly the Ornithopoda. I have also worked with theropod (including birds) and sauropod dinosaurs, as well as non-dinosaurian taxa such as turtles, cynodonts, and crocodilians.
H. Henry Teng
Ph.D., Georgia Institute of Technology
Tel: (202) 994-0112
Research Interests: Probing and understanding the behavior of earth materials in natural aqueous environments, including rock-water interactions (dissolution, formation, transformation, chemical change) in nature. Current research focuses on mineral dissolution and crystallization in waters with different chemistry to unravel reaction processes and mechanisms at crystal-water interfaces. Approaches include in situ microscopic study and ex situ experimental exploration from both energetic and kinetic points of view. Exploring biomolecule-mineral interaction to understand biomineralization,(e.g. shells or bones) in biological systems, and the origin of bio-homochirality (the uniform handedness in amino acids and sugars) and, hence, the origin of life. Investigating interactions of microbes with soils to determine if certain fungi are able to promote nutrient release from minerals (bio-fertilizer). Studying methods to curtail CO2 emission through geological carbon sequestration by converting CO2 to carbonate minerals as a permanent solution; this study includes the crystallization processes of carbonate minerals to better understand this conversion, and the use of catalysts and bacteria to convert CO2 to calcium carbonate.
Richard P. Tollo
Igneous and Metamorphic Petrology
Ph.D., University of Massachusetts
Tel: (202) 994-6960
Courses: Physical Geology, Mineralogy, Igneous and Metamorphic Petrology, Geological Field Methods, Volcanology, Field Experience in Volcanology
Research Interests: My research primarily involves field-based studies of Precambrian igneous and metamorphic rocks, including application of petrologic and geochemical information to deduce the typically complex evolution of such rocks and the terranes in which they occur. My current work involves field and petrologic studies of Mesoproterozoic basement rocks and Neoproterozoic metavolcanic rocks exposed near Mount Rogers in southwestern Virginia. Investigations include detailed field mapping, petrologic and geochemical characterization, and in situ trace-element geochemical analyses of zircons dated by U-Pb isotopic methods. These studies are undertaken in collaboration with colleagues from the U.S. Geological Survey. A recent focus of our work involves detailed SHRIMP (sensitive high resolution ion microprobe) analysis of trace-element compositions in Precambrian zircons that have been dated using standard SHRIMP isotopic techniques. These studies are designed to elucidate the geochemical and petrologic mechanisms of zircon formation in polymetamorphosed rocks of igneous origin. Undergraduate students play an active and key role in all of my research-related activities.
In Memorium - George C. Stephens
Part-Time and Adjunct Faculty
Joseph H. Kravitz
Ph.D., The George Washington University
Office of Naval Research
Research Interests: My research interests include the study of sediments and sedimentary processes in high-latitude, glacial-marine environments, as well as the application of marine geotechnical techniques to the solution of geologic problems. I have studied the geologic character of sea floor worldwide including the Arctic's Kane Basin, Baffin Bay, and the sea floor off Wilkes Land, Antarctica.
John F. Lewis
Igneous and Metamorphic Petrology
Ph.D., Oxford University
Associate Professorial Lecturer
Ph.D., George Washington University
Tel: (202) 994-0113
Courses: Physical Geology, Enviornmental Geology, Geology and the Environment, Geological Hazards and Land-Use Planning
Research Interests: Igneous Petrology and Geochemistry of Tertiary volcanic and granitoids sequences of the northern Caribbean plate boundary
J.D., DePaul College of Law
Courses: Environmental Law
Advocacy Interests: Environmental justice, including community vulnerability, sustainability and climate justice
Elisheva (Elli) Pauli
Lecturer and Laboratory Coordinator
M.S., George Washington University
Tel: (202) 994-0113
Courses: Physical Geology, Environmental Geology, introductory laboratories
Research and Teaching Interests: Over the years, I’ve been fortunate to work with a number of talented scientists on a variety of research projects ranging from mineral characterization of Martian Meteorites to synthetic precipitation of Mg-carbonates as a potential route for mineral carbon sequestration. While I enjoy research for the intellectual challenge, teaching is where I take my pleasure, and presently, my time is dedicated to developing a strong Environmental Geology curriculum and coordinating the environmental, physical, and historical geology laboratory courses. I am also the proud mommy of 6 parrots, 1 chinchilla, 4 cats, and my doggy Snuffles, who teach me new things about this miraculous planet every single day!!
Kenneth A. Rasmussen
Ph.D., University of North Carolina
Courses: Oceanography, introductory laboratories
Research Interests: My research has focused on sedimentary records of climate change in marine and lacustrine carbonate environments. These studies have been conducted in St. Croix, The Bahamas, Belize, Hungary, Italy, and Kyrgyzstan. I have been particularly interested in the origin and development of microbialite and stromatolite reefs, as well as the genesis and paleoecology of carbonate hardgrounds.
Frederic R. Siegel
Ph.D., University of Kansas,
Patrick T. Taylor
Ph.D., Stanford University
National Aeronautics and Space Admistration
Research Interests: My research focusses on the application of geophysics, especially magnetic systems, to problems in terrestrial and planetary geology.