Directory

Fault zone imaging, surface waves, seismic interferometry, 4-D imaging

My research mainly focuses on Multi-scale imaging and monitoring of the upper crust and Fault Zones. I’m particularly interested in integrating high resolution imaging of fault zone structures, based on fault zone head and trapped waves along with P and S body waves, with larger scale ambient noise tomography for the surrounding crust. Additional research interests include monitoring seismic velocity temporal change, and inverse problem.

My research combines radiogenic isotope and trace element geochemistry, volatile and sulfur isotope analyses in mineral-hosted melt inclusions, petrology, field work (i.e., marine expeditions) and simple geodynamic equations to investigate the geochemical cycles of the deep Earth. In particular, I examine the deep cycles of sulfur and water to investigate whether or not volatiles are lost during subduction or fluxed back from the mantle to the surface through magmatism and degassing. My research also focusses on the petrogenesis of subduction zone magmas, the composition of the fluids released during subduction processes and mantle heterogeneities.

Geochemical characterization of ash beds in the Cretaceous Eagle Ford Formation with interest in dissolved ash serving as a biological nutrient.

Experimental petrology ; Igneous processes ; Continental lithospheric mantle; Mid Lithospheric Discontinuity; Cratons ; Amphibole ; Phlogopite

Metasomatic processes in the continental lithospheric mantle and their role in physical and chemical properties beneath continents.

marine geophysics, tectonophysics

Dale is a tectonophysicist that brings together active source seismology, geodynamic modeling, and remote-sensing to investigate the structure and evolution of the crust and sedimentary basins.

Seismic data interpretation, attribute analysis, structural geology, seismic reflection data processing, hyper-extension

I currently focus on the Galicia-Newfoundland conjugate margins and how the extension factor (β) is related to narrow and wide rifting modes, and oceanic core complexes.

Seismic Interpretation, Sedimentology, Petroleum Geology

Coupled surface/interior processes of planets within and external to our solar system. Numerical and physical modeling of convective processes -- planetary to magma chamber scale -- occurring in planetary bodies.

isotope geochemistry, mass spectrometry, volcanology, paleoclimatology, analytical technique and method development, aqueous geochemistry

geophysics, modeling

Geophysics, Mantle dynamics

Seismology, Geophysics

I am exploiting and developing works in mathematics (inverse theory, optimization, numerical linear algebra) and computer science (massively parallel algorithms, computational geometry) for geophysical applications from regional to planetary scales.