Faculty & Research Scientists
|Jaime D Barnes|
Stable isotope geochemistry, metamorphism and volatile transport in subduction zones, fluid-rock interaction and metasomatism, geochemical cycling, stable chlorine isotopes
mantle dynamics; fault system dynamics; structural seismology; numerical modeling
Mechanics and kinematics of deformation in continental lithosphere, rheology of the crust and upper mantle, mechanisms of strain localization, experimental rock mechanics, tectonic geomorphology and long term slip rates and hazard on large-scale strike-slip faults.
|Elizabeth J Catlos|
The geological evolution of the Turkey (various regions), Himalayas (India and Nepal), south India (Tamil Nadu), and Slovakia (Carpathians); models for heat, mass, and fluid flow along tectonic structures; developing techniques for isotopic microanalysis; applying mineral equilibria to estimate environmental conditions during dynamic recrystallization; accessory mineral geochronology; stone decay and deformation mechanisms. Overall, I am interested in developing and applying petrochemical and geochemical techniques to the study of lithosphere dynamics.
|Gail L Christeson|
Marine seismology, mid-ocean ridge structure and emplacement processes, oceanic crustal structure, ocean-bottom seismology, seismic refraction
|James E Gardner|
Volcanology, volcanic eruption processes, magmatic processes, experimental petrology, volatiles in magmas, degassing of volatiles from magmas, control of degassing behavior on volcanic eruptions and formation of ore bodies
|Mark A Helper|
Dr. Helper is a field geologist, a generalist whose interests span igneous and metamorphic petrology, structural geology, tectonics, mineralogy and planetary field geology. His current research explores geochemical and isotopic similarities of Proterozoic and Archean crust in East Antarctica and the southwestern U.S., the Precambrian geology of Texas, and the origin of epidote blueschists in the Klamath Mountains of northern California. Recent senior honors theses under his supervision have examined the mineralogy of Texas ...
|Richard A Ketcham|
High-resolution X-ray computed tomography, CT scanning, 3D image analysis, fission-track dating, thermochronology, structural geology, tectonics, digital morphology, trabecular bone
|John C Lassiter|
Earth's origin and evolution, isotope and trace element geochemistry, the role of crust and lithospheric mantle recycling in the generation of mantle chemical heterogeneity, the origin and distribution of water and other volatile elements in the Earth's interior, and the thermal and chemical evolution of the Earth's core and core/mantle boundary
|Stephen E Laubach|
Structural diagenesis, structural geology, fracture analysis, fluid inclusion and cathodoluminescence studies, rock mechanics, mechanical and fracture stratigraphy, hydrocarbon exploration and development in deep and/or structurally complex areas, tight gas sandstone, coalbed methane, shale gas; geologic aspects of hydraulic fracturing, application of borehole-imaging geophysical logs to stress and fracture evaluation, structural evolution of North American Cordillera, fracture history of NW Scotland, regional fracture studies Argentina.
|Luc L Lavier|
Tectonics; the structural and geodynamical evolution of continental and oceanic rifts, as well as collisional environments; numerical techniques to model tectonic processes on crustal and lithospheric scales; deformation; subduction
|Kirk D McIntosh|
Structure and development of continental margins along convergent and transpressive plate boundaries; sediment accretion, subduction, and erosion at convergent margins; forearc and backarc extension and compression; fluid dynamics in accretionary prisms; shallow-subduction seismicity
Structural petrology, field-oriented structural geology, the evolution of complexly deformed terranes, strain analysis, deformation mechanisms, the interaction between chemical and physical processes during deformation
Thermo-/Geochronology, Tectonics and Structural Geology, Isotopic Provenance Analysis, Archeometry, Geothermal Exploration, and Thermal Maturation
|Harm J Van Avendonk|
Van Avendonk is an active-source seismologist who specializes in the acquisition and inversion of seismic refraction data on land and at sea. Often these seismic refraction data are used for a tomographic inversion. The resultant seismic velocity models help us to interpret the composition of the Earth’s crust and mantle, the geometry of sedimentary basins, and the structure of plate boundaries.
Crustal deformation, GPS/Geodesy, active plate boundary processes, subduction tectonics, geohazards
Tectonic; Geochronology, Stratigraphy, Biochronology
|Eric D Kelly|
Structural, microtextural, and chemical investigations of metamorphism using field, analytical, and numerical techniques: Petrogenesis of metamorphic rocks including pressure-temperature-time-deformation paths that reveal crustal processes; thermodynamic and kinetic investigations of nucleation and diffusion, including impacts of slow kinetics on metamorphic crystallization that cause disequilibrium.
|Matthew B Weller|
geodynamics, heat transfer, numerical analysis, fault systems, planetary evolution
Electron microbeam and X-ray techniques, mantle mineralogy and petrology, environmental mineralogy, nuclear waste management, and materials science.