Research Interests:
- Trace metals in seawater: analytics, chemical speciation and (bio)geochemical cycling
- Marine minerals: genesis, resource potential, and paleoceanographic information
- Solid-solution reactions (adsorption of metals on mineral phases, etc.)
- Geo-bio interfaces in marine systems (e.g. metal-biota interactions)
- Hydrothermal fluids and hydrothermal metal fluxes into the ocean
- Environmental geochemistry (including soil geochemistry)
- Environmental consequences of future deep-sea mining
Research Positions:
- Participation in numerous research cruises within the Pacific, Atlantic, Indian Ocean, the Sea of Marmara and the North Sea; chief scientist of several cruises: e.g. SO106B, M68, SO253, M147, M169, see latest cruises:
- M169, TRAM, Input of critical high-tech metals from the rivers Elbe, Weser, and Ems into the North Sea https://www.jacobs-university.de/blog-post-m169
- SO253, HYDROTHERMADEC, Geochemical and ecological effects of hydrothermal processes at intraoceanic volcanic arcs using the example of the Kermadec Arc (SW Pacific) http://geschichten.ptj.de/so253 or http://geschichten.ptj.de/so253-en
- M147, Amazon-Geotraces, Interactions of trace metals, DOM, and particles in the Amazon estuary and associated plume as key processes for trace metal and DOM fluxes into the Atlantic
- Participation in marine joint research projects and programs, such as:
- 2019-2026 Cluster of Excellence ›The Ocean Floor – Earth’s Uncharted Interface‹ https://www.marum.de/en/The-Ocean-Floor.html
- 2018-2022 JPI Oceans “Ecological Impacts of Deep-sea Mining”, MiningImpact2, Environmental Impacts and Risks of Deep-Sea Mining https://miningimpact.geomar.de/de
- 2015-2017 JPI Oceans “Ecological Impacts of Deep-sea Mining”, MiningImpact, Ecological Aspects of Deep-Sea Mining https://miningimpact.geomar.de/de
- 2007-2018 Cluster of Excellence ›The Ocean in the Earth System‹
- 2003-2010 Special Priority Program 1144 on hydrothermal systems on the Mid-Atlantic Ridge https://www.geomar.de/en/research/fb4/fb4-muhs/projects/spp1144/
- GEOTRACES http://www.geotraces.org
- Geochemistry of marine precipitates and fluid geochemistry; analytical, experimental and thermodynamic geochemistry
- Analyses of trace metals in seawater (electrochemical and spectroscopic methods)
- Environmental projects on contaminants and processes in soil and water
Teaching Positions:
since 2015 | Teaching in the Jacobs undergraduate program Earth and Environmental Sciences |
since 2010 | Teaching in the Jacobs undergraduate program Integrated Environmental Studies |
since 2003
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Teaching in the Jacobs undergraduate and graduate programs Earth and Space Sciences / Geosciences |
1990-2001 | Teaching of courses in geosciences, field and lab courses at TU Clausthal and FU Berlin |