My research falls in the general categories of aqueous and sedimentary geochemistry. I focus on applications of low-temperature geochemistry to problems in hydrochemistry, diagenesis, geomicrobiology, planetary geology, and geothermal processes. My research approach combines field examination of modern environments (water, sediment and rocks) with laboratory analysis as well as core and outcrop evaluations applied to evaluate paleohydrology, spring sustainability and reservoir/aquifer characteristics. Activities include geoscience outreach, K-12 outreach, and science education research as well as programs to increase the participation of under-represented groups in the science disciplines.