Research Activities in Geochemistry and Hydrogeology

Focus

In the dynamic web of interrelationships that arise when components of the global ecosystem interact, water arguably plays the most important role. This importance is twofold in the sense that the water molecule is the basis for all life and secondly that chemical species, dissolved in water, can sustain, alter or terminate life. In the broadest sense our research interest is the holistic approach to the role of water-rock interaction and cycling of elements within the system Earth. Of particular interests are: (1) environmental studies about water quality, (2) source, transport and fate of contaminants in natural and anthropogenic systems such as soil, groundwater, sediments, construction material and land fills and, (3) hydrothermal systems.

Working Areas

Hydrothermal systems in shallow-water, as well as locations along mid-oceanic and back-arc ridges. Geographic regions with elevated concentrations of toxins in surface and ground water. Groundwater case studies in lab scale up to groundwater management on river basin scale. Release studies form sediments, soils, constructional materials as well as modeling reactive transport. Quality and transport of sediments in harbor and estuarine ecosystems, re-use technologies for contaminated sediments and sediment management concepts.

Methods

Multi-disciplinary field and experimental studies of hydrogeological, biological and chemical processes. Trace element analyses and speciation in solid and liquid media by inductively coupled plasma – mass spectrometry (ICP-MS). Laser cavity ring-down spectroscopy (CRDS) for water isotopes. For more information please refer to the Methods section.

Current Projects: