Abraham Role

Current Research:

Generally, the focus of my research is using the Uranium and Thorium decay series nuclides (²³⁸U -> ²⁰⁶Pb, ²³⁵U -> ²⁰⁷Pb, and ²³²Th -> ²⁰⁸Pb) to constrain time scales of volcanic processes.  More specifically, my current investigation involves the collection and analysis of radium and radon from hot springs and hydrothermal features in Yellowstone National Park.  The ratios of parent to daughter nuclides (²²⁶Ra/²²²Rn, ²²³Ra/²¹⁹Rn, and ²²⁴Ra/²²⁰Rn) and the corresponding equilibrium or disequilibrium, accordingly, can theoretically be used to constrain time scales of hydrothermal fluid dynamics and hydrothermal fluid – rock interactions within the Yellowstone Caldera (Sturchio et al., 1993).  Potential insight(s) gained from this investigation can augment our understanding of volcanic hydrothermal systems and provide an analogue that can be used on a broader scale in volcanic and magmatic processes and their associated hydrothermal systems worldwide.