This thesis evaluates the utility of a geochemical technique for the investigation of paiaeoenvironmental change in south west England. The method, EDMA (Energy Dispersive X-ray Micro Analysis), is a rapid, non-destructive analysis tool, capable of detecting a large range of geochemical elements. This research examines the most appropriate method of sample preparation for organic soils and peat...

[1] We integrate groundwater geochemistry, mineralogy, and numerical modeling techniques to study the reactive transport of heavy metals and isotopes in the Eutaw coastal plain aquifer, Alabama. Geochemical data show that the elevated concentrations of Fe, Mn, and Sr can be correlated with high pH and alkalinity. These geochemical correlations suggest that that elevated metal concentrations may...

To promote a more efficient and transparent geochemistry data ecosystem, consortium of Australian university research laboratories called the AuScope Geochemistry Network (AGN) assembled to build collaborative platform for express purpose preserving, disseminating, collating geochronology isotopic data. In partnership with geoscience-data-solutions company Lithodat Pty Ltd, open, cloud-based Au...

The southwestern tropical Pacific, part of a major pathway for waters feeding the Equatorial Undercurrent, is a region of important geochemical enrichment through land-ocean boundary exchange. Here we develop an original method based on the coupling between dynamical modeling and geochemical tracer data to identify regions of enrichment along the water pathways from the subtropics to the equato...

Within reactive geochemical transport, several conceptual models exist for simulating sorption processes in the subsurface. Historically, the KD approach has been the method of choice due to ease of implementation within a reactive transport model and straightforward comparison with experimental data. However, for modeling complex sorption phenomenon (e.g. sorption of radionuclides onto mineral...