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Prof. Dr. Andrea Koschinsky-Fritsche
Prof. Dr.
Professor of Geosciences
Physics & Earth Sciences

Campus Ring 1 | 28759 Bremen | Germany

+49 421 200-3229
a.koschinsky [at]
Research III, Room 105
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)
University Education: 
Habilitation in geochemistry finished at the Free University of Berlin
Postdoctorate at the Free University of Berlin, different marine research projects
Dissertation (Ph.D.) in geochemistry finished at the Free University of Berlin
Doctoral thesis started at the Technical University of Clausthal, Inst. of Mineralogy
Diploma (equiv. to MSc.) in Chemistry, Technical University of Clausthal
Intermediate Diploma (equiv. to B.Sc.) in Chemistry
Studies of Chemistry at the Technical University of Clausthal
Since11/2011Full Professor of Geoscience at Jacobs University Bremen
Since 2/2005
Associate Professor of Geosciences at Jacobs University Bremen 
Senior Research Associate International University Bremen IUB
Since 2002
College lecturer at the Free University of Berlin
Research scientist and project coordinator at the Free University of Berlin
Scientist at the Technical University of Clausthal
Fellowships and Awards: 
Geochemical Journal award for outstanding paper 2009 (together with Michael Bau)
2005"Sparkassenpreis" for cooperation project between Jacobs Univ. and Univ. Bremen
Viktor-Moritz-Goldschmidt award of the German Mineralogical Society DMG


  • 2011-present Member of the DFG Senate Commission for Oceanography
  • 2011-2013 Councillor in the European Association of Geochemistry
  • 2008-present Jacobs Univ. representative of the POLMAR grad school (coordinator: AWI)
  • 2006-2008 Member of the Advisory Board of the German Mineralogical Society DMG
Research and Teaching Positions: 

Research Positions:

  • Participation in 11 research cruises with RV Sonne and RV Meteor in the Central Pacific, Atlantic, Indian Ocean and Sea of Marmara; chief scientist of two cruises
  • 2003-2010 involved in the Special Priority Program 1144 on hydrothermal systems on the Mid-Atlantic Ridge
  • 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
  • National (Univ. Kiel, FU Berlin, Univ. Bremen, MPI Bremen, Univ. Kiel, AWI Bremerhaven, TU Freiberg, Univ. Hamburg, JKI Braunschweig, and others) and international cooperation (U.S. Geological Survey, Univ. of Otago in New Zealand, Universidade Federal de Santa Maria in Brazil, and others)
  • Exchange programs with partners in Brazil and New Zealand



Teaching Positions:



since 2010Teaching in the Jacobs undergraduate program Integrated Environmental Studies
since 2003Teaching in the Jacobs undergraduate and graduate programs Earth and Space Sciences / Geosciences
Teaching Marine Geoscience courses at FU Berlin
Training course in marine geochemistry for scientists and engineers from Indonesia and Sri Lanka
since 1991
(Co-)Supervision of diploma and doctoral theses
Laboratory courses in analytical geochemistry at TU Clausthal and FU Berlin
  • Koschinsky, A., Kausch, M., and Borowski, C. (2014): Metal concentrations in the tissues of the hydrothermal vent mussel Bathymodiolus: Reflection of different metal sources. Marine Environmental Research 95, 62-73.
  • Hein, J. and Koschinsky, A. (2014): Deep-ocean ferromanganese nodules and crusts. In: Treatise on Geochemistry, Second Edition, (2014), vol. 13, 273-291.
  • Perner, M., Hansen, M., Seifert, R., Strauss, H., Koschinsky, A., and Petersen, S. (2013): Linking geology, fluid chemistry, and microbial activity of basalt- and ultramafic-hosted deep-sea hydrothermal vent environments. Geobiology, doi: 10.1111/gbi.12039, 16 pp.
  • Hein, J., Mizell, K., Koschinsky, A, and Conrad, T.A. (2013): Deep-ocean mineral deposits as a source of critical metals for high- and green-technology applications: Comparison with land-based deposits. Ore Geology Reviews 51, 1-14.
  • Klevenz, V., Sander, S., Perner, M., and Koschinsky, A. (2012): Amelioration of free copper by hydrothermal vent microbes as a response to high copper concentrations. Chemistry and Ecology, DOI:10.1080/02757540.2012.666531.
  • Smidt, G.A., Koschinsky, A., de Carvalho,, L.M., Monserrat, J. and Schnug, E (2011): Heavy metal concentrations in soils in the vicinity of a fertilizer factory in Southern Brazil Landbauforschung - vTI Agriculture and Forestry Research 4 2011(61), 353-364
  • Smidt, G.A., Landes, F.C., Carvalho, L.M., Koschinsky, A. and Schnug, E. (2011): Cadmium and uranium in German and Brazilian phosphorous fertilizers. In: Merkel, B., Schipek, M. (eds.): The New Uranium Mining Boom: Challenge and lessons learned, Springer Geology, Berlin Heidelberg, 167-175.
  • Klevenz, V., Bach, W., Schmidt, K., Hentscher, M., Koschinsky, A., and Petersen, S. (2011): Geochemistry of vent fluid particles formed during initial hydrothermal fluid-seawater mixing along the Mid-Atlantic Ridge. Geochem. Geophys. Geosyst. 12, 23 pp., doi:10.1029/2011GC003704.
  • Schmidt, K., A., Garbe-Schönberg, D., Koschinsky, A., Strauss, H., Jost, C., Klevenz, V., and P. Königer (2011): Fluid elemental and stable isotope composition of the Nibelungen hydrothermal field (8°18'S, Mid-Atlantic Ridge): Constraints on fluid-rock interaction in heterogeneous lithosphere. Chemical Geology 280, 1-18.
  • Sander, S. and Koschinsky, A. (2011). Metal flux from hydrothermal vents increased by organic complexation. Progress article, Nature Geoscience 4, 145-150.
  • Bau, M., Balan S., Schmidt, K. and Koschinsky, A., (2010). Rare earth elements in mussel shells as tracers of hidden high-temperature hydrothermal systems. Earth and Planetary Science Letters 299, 310–316.
  • Schmidt, K., A., Garbe-Schönberg, D., Koschinsky, A., Strauss, H., Jost, C., Klevenz, V., and P. Königer (2011). Fluid elemental and stable isotope composition of the Nibelungen hydrothermal field (8°18'S, Mid-Atlantic Ridge): Constraints on fluid-rock interaction in heterogeneous lithosphere. Chemical Geology 280, 1-18.
  • Klevenz, V., Sumoondur, A., Ostertag-Henning, and Koschinsky, A. (2010). Concentrations and distributions of dissolved amino acids in seawater from Mid-Atlantic Ridge hydrothermal vents. Geochemical Journal 44, 387-397.
  • Koschinsky, A., Bau, M., Marbler, H., and Schmidt, K. (2010). Rare valuable metals in marine ferromanganese nodules – contents and accumulation processes. Zeitschrift für Angewandte Geologie 51 (2), 33-39.
  • Schmidt, K., Garbe-Schönberg, D., Bau, M., and Koschinsky, A. (2010). Rare earth element distribution in >400ºC hot hydrothermal fluids from 5ºS, MAR: Controls on anomalous and highly variable distribution patterns. Geochimica et Cosmochimica Acta 74, 4058-4077.
  • Marbler, H., Koschinsky, A., Pape. T., Seifert, R., Weber, S., Baker, E.T., de Carvalho, L.M., and Schmidt, K. (2010). Geochemical and thermal structure of the hydrothermal plume at the ultramafic hosted Logatchev hydrothermal field at 14°45’ on the Mid Atlantic Ridge. Marine Geology 271, 187-197.
  • Dias, D., Nascimento, P.C., Jost, C.L., Bohrer, D., Carvalho, L.M. and Koschinsky, A. (2010).Voltammetric determination of low molecular weight s-compounds in hydrothermal vent fluids – Studies with hydrogen sulfide, methanethiol, ethanethiol and propanethiol. Electroanalysis. 22, 1066-1071.
  • Haase, K.M., Koschinsky, A., Petersen, S., Devey, C.W., German, C., Lackschewitz, K.S., Melchert, B., Seifert, R., Borowski, C., Giere, O., Paulick, H., and the M64/1, M68/1 and M78/2 Scientific Parties (2009). Diking, young volcanism and diffuse hydrothermal activity on the southern Mid-Atlantic Ridge: The Lilliput field at 9°33’S. Marine Geology 266, 52-64.
  • Nascimento, P.C., Jost, C.L., Carvalho, L.M., Bohrer, D., and Koschinsky, A. (2009).Voltammetric determination of Se(IV) and Se(VI) in saline samples — Studies with seawater, hydrothermal and hemodialysis fluids. Analytica Chimica Acta 648, 162–166.
  • Perner, M., Bach, W., Hentschser, M., Koschinsky, A., Garbe-Schönberg, D., Streit, W.R., and Strauss, H. (2009). Short-term microbial and physico-chemical variability in low-temperature hydrothermal fluids near 5°S on the Mid-Atlantic Ridge. Environmental Microbiology, doi:10.1111/j.1462-2920.2009.01978.x
  • Sharma, P., Steckel, H., Koschinsky A., and Schnug, E. (2009). Potential correlation of heavy metals in surface soils with infestation of Viscum album in poplar trees. Agriculture and Forestry Research 59 (1), 11-18.
  • Bau, M., and Koschinsky, A. (2009). Oxidative scavenging of cerium on hydrous Fe oxide: Evidence from the distribution of rare earth elements and yttrium between Fe oxides and Mn oxides in hydrogenetic ferromanganese crusts. Geochemical Journal, Vol. 43 (No. 1), pp. 37-47.
  • Koschinsky, A., Garbe-Schönberg, D., Sander, S., Schmidt, K., Gennerich, H.H., and Strauß, H. (2008): Hydrothermal venting at pressure-temperature conditions above the critical point of seawater, 5°S on the Mid-Atlantic Ridge. Geology 36, 615-618.
  • Haase, K.M., Petersen, S., Koschinsky, A., et al. (2007): Young volcanism and related hydrothermal activity at 5°S on the slow-spreading southern Mid-Atlantic Ridge, Geochem. Geophys. Geosyst., 8, Q11002, doi:10.1029/2006GC001509.
  • Koschinsky, A., Seifert, R., Knappe, A., Schmidt, K., and Halbach, P. (2007): Hydrothermal fluid emanations from the submarine Kick’em Jenny volcano, Lesser Antilles island arc. Marine Geology 244, 129-141.
  • Schmidt, K., Koschinsky, A., Garbe-Schönberg, D., de Carvalho, L.M., and Seifert, R. (2007): Geochemistry of hydrothermal fluids from the ultramafic-hosted Logatchev hydrothermal field, 15°N on the Mid-Atlantic Ridge. Chemical Geology 242, 1-21.
  • Perner, M., Kuever, J., Seifert, R., Pape, T., Koschinsky, A., Schmidt, K., Strauss, and H., Imhoff, J.F. (2007): The influence of ultramafic rocks on microbial communities at the Logatchev hydrothermal field, located 15°N on the Mid-Atlantic Ridge. FEMS Microbiology Ecology 61, 97-109.
  • Perner, M., Seifert, R., Weber, S., Koschinsky, A., Schmidt, K., Strauss, Peters, M., Haase, K., and H., Imhoff, J.F. (2007): Microbial CO2 fixation and sulfur cycling associated with low-temperature emissions at the Lilliput hydrothermal field, southern Mid-Atlantic Ridge (9°S). Environmental Microbiology, doi:10.1111/j.1462-2920.2007.01241.x
  • Sander, S., Koschinsky, A., Massoth, G., Stott, M., and Hunter, K.A. (2007): Organic complexation of copper in deep-sea hydrothermal vent systems. Environmental Chemistry 4, 81-89.
  • de Carvalho, L. M. , do Nascimento, P. C. , Koschinsky, A. , Bau, M. , Stefanello, R. F. , Spengler, C. , et al (2007, July 04). Simultaneous Determination of Cadmium, Lead, Copper, and Thallium in Highly Saline Samples by Anodic Stripping Voltammetry (ASV) Using Mercury-Film and Bismuth-Film Electrodes (p NA). Electroanalysis 19, 1719-1726.
  • Bau, M. and Koschinsky, A. (2006): Hafnium and neodymium isotopes in seawater and ferromanganese crusts: the “element” perspective. Earth and Planetary Science Letters 241, 952-961.
  • Hein, J.R., Koschinsky, A., and McIntyre B.R. (2006): A mercury- and silver-rich ferromanganese-oxide deposit, Southern California borderland: Deposit model and environmental implications. Economic Geology 100, 1151-1168.
  • Frank, M., Marbler, H., Koschinsky, A., van de Flierdt, T., Klemm, V., Gutjahr, m., Halliday, A.N., Kubik, P.W., and Halbach, P. (2006): Submarine hydrothermal venting related to volcanism in the Lesser Antilles: Evidence from ferromanganese precipitates. Geochemistry Geophysics Geosystems 7, 24 pp. Doi:10.1029/2005GC001140
  • Claude, C., Suhr, G., Hofmann, A.W., and Koschinsky, A. (2005): U-Th chronology and paleo-oceanographic record in a Fe-Mn crust from the NE Atlantic over the last 720 ka. Geochimica et Cosmochimica Acta 69, 4845-4854.
  • Koschinsky, A., Hein, J.R., and Bau, M. (2004): The importance of surface oxidation for the enrichment of Te and Se on Mn oxides and Fe oxyhydroxide. In: R.B. Wanty and R.R. Seal (Eds.), Water-Rock Interaction, Vol. 2, Balkema Publ. Leiden, pp. 1323-1326.
  • Sander, S., Koschinsky, A. and Halbach, P. (2003): Redox speciation of chromium in the oceanic water column of the Lesser Antilles and offshore Otago Peninsula, New Zealand. Marine and Freshwater Research 54, 745-754.
  • Koschinsky, A. and Hein, J.R. (2003): Acquisition of elements from seawater by ferromanganese crusts: Solid phase associations and seawater speciation. Marine Geology 198, 331-351.
  • Kuhn, T., Bostik, B.C., Koschinsky, A., Halbach, P., and Fendorf, S. (2003): Unusual enrichment of Mo in hydrothermal Mn precipitates: possible sources, formation and phase associations. Chemical Geology 199, 29-43
  • Tunnicliffe, V., Baross, J., Gebruk, A., Giere, O., Koschinsky, A., Reysenbach, A.L., Shank, T.M., and Summit, M. (2003): Group report 3: What are the interactions between biotic processes a vents and physical, chemical and geological conditions? In: Report of the Dahlem Workshop on Energy and Mass Transfer in Hydrothermal Systems. October 2001 (Eds. P. Halbach, V. Tunnicliffe, and J.R. Hein, 251-270.
  • Koschinsky, A., Borowski, C. and Halbach, P. (2003): Reactions of the heavy metal cycle to industrial activities in the deep-sea: an ecological assessment. International Review of Hydrobiology: 88, 102-127.
  • Hein, J.R., Koschinsky, A., and Halliday, A.N. (2003): Global occurrence of tellurium-rich ferromanganese crusts and a model for the enrichment of tellurium. Geochimical et Cosmochimica Acta 67, 1117-1127.
  • Koschinsky, A., Winkler, A. and Fritsche, U. (2003): Importance of different types of marine particles for the scavenging of heavy metals in the deep-sea. Applied Geochemistry 18: 693-710.
  • Koschinsky, A., Seifert, R., Halbach, P., Bau, M., Brasse, S., De Carvalho, L.M. and Fonseca, N.M. (2002): Geochemistry of diffuse low-temperature hydrothermal fluids in the North Fiji Basin. Geochimica et Cosmochimica Acta, 67, 1409-1427.
  • Claude-Ivanaj, C., Hofman, A.W., Vlastélic, I. and Koschinsky, A. (2001): Recording changes in ENADW composition over the last 340 ka using high-precision lead isotopes in a Fe-Mn crusto. Earth and Planetary Science Letters, 188: 73-89.
  • Fritsche U., Koschinsky, A., and Winkler, A (2001): The different diffusive transport behaviours of some metals in layers of Peru Basin surface sediment. Deep-Sea Research II, 48: 3653-3682
  • Halbach, P., Holzbecher, E., Koschinsky, A., Michaelis, M., and Seifert, R. (2001): Deep-sea hydrothermal microplume generation - a case study from the North Fiji Basin. Geo-Marine Letters, 21: 94-102.
  • Koschinsky, A. (2001): Heavy metal distributions in Peru Basin surface sediments in relation to historic, present and disturbed redox environments. Deep-Sea Research II, 48: 3757-3778.
  • Koschinsky, A., Fritsche, U. and Winkler, A. (2001): Sequential leaching of Peru Basin surface sediment for the assessment of aged and fresh metal associations and mobility. Deep-Sea Research II, 48: 3683-3700.
  • Koschinsky, A., Gaye-Haake, B., Maue, G., Winkler, A., and Halbach, P. (2001): Experiments on the influence of disturbances on the biogeochemistry of the deep-sea environment. Deep-Sea Research II, 48: 3629-3652.
  • Kuhn, T., Koschinsky, A., and Halbach, P. (2001): Enrichment of Mo in hydrothermal Mn precipitates from the North Fiji Basin. In: Mineral Deposits at the Beginning of the 21st Centruy (ed. A. Piestrzynski). Balkema, Lisse, pp. 289-292.
  • Hein, J.R., Koschinsky, A., Bau, M., Manheim, F.T., Kang, J.-K., and Roberts, L. (2000): Cobalt-rich ferromanganese crusts in the Pacific. In: Handbook of Marine Mineral Deposits (ed. D.S. Cronan). CRC Press, Boca Raton, Florida, pp. 239-279.
  • Sander, S. and Koschinsky, A. (2000): Onboard-ship redox speciation of chromium in diffuse hydrothermal fluids form the North Fiji Basin. Marine Chemistry, 71: 83-102.
  • Koschinsky, A. (2000): Geochemische Experimente zur Bindung von gelösten Spurenmetallen an marine Feststoffe. In: Umweltgeochemie in Wasser, Boden und Luft - Geogener Hintergrund und anthropogene Einflüsse (Hrsg. Gesellschaft für UmweltGeowissenschaften), S. 167-187.
  • Abouchami, W., Galer, S.J.G. and Koschinsky, A. (1999): Pb and Nd isotopes in NE Atlantic Fe-Mn crusts: Proxies for trace metal paleosources ad paleocean circulation. Geochimical et Cosmochimica Acta, 63: 1489-1505.
  • Koschinsky, A., Halbach, P., Kuhn, T. and Sander, S. (1999): Sampling and measuring of hydrothermal fluids with the Hydro Bottom Station (HBS). Proceedings of the Ninth (1999) International Offshore and Polar Engineering Conference (ISOPE '99, Brest), Vol. IV, 583-589.
  • Koschinsky, A., Stascheit, A., Bau, M. and Halbach, P. (1997): Effects of phosphatization on the geochemical and mineralogical compositon of marine ferromanganese crusts. Geochimica et Cosmochimica Acta, 61: 4079-4094.
  • Koschinsky, A., Szemeitat, A., and Halbach, P. (1997): Experiments on the influence of technical activities in the deep-sea on heavy metal cycles. Proceedings of the Seventh (1997) International Offshore and Polar Engineering Conference (ISOPE '97, Honolulu), Vol. I, 445-449
  • Hein, J.R., Koschinsky, A., Halbach, P., Manheim, F.T., Bau, M., Kang, J.-K., and Lubick, N. (1997): Iron and manganese oxide mineralizations in the Pacific. In: Manganese mineralizations: Geochemistry of Terrestrial and Marine Deposits (eds. K. Nicholson, J.R. Hein, B. Bühn and S. Dasgupta), Geological Society Special Publications, 199: 123-138.
  • Bau, M., Koschinsky, A., Dulski, P., and Hein, J.R. (1996): Comparison of the partitioning behaviours of yttrium, rare earth elements, and titanium between hydrogenetic marine ferromanganese crusts and seawater. Geochimica and Cosmochimica Acta, 60: 1709-1725
  • Koschinsky, A., Szemeitat, A., Maggiulli, M., and Halbach, P. (1996): In-situ enrichment of heavy metals from deep-sea water by an ion-exchange pump system. Marine Georesources and Geotechnology, 14: 297-314.
  • Koschinsky, A., Halbach, P., Hein, J.R., and Mangini, A. (1996): Ferromanganese crusts as indicators for paleoceanographic events in the NE Atlantic. Geologische Rundschau, 85: 567-576.
  • Koschinsky, A., van Gerven, M. and Halbach, P. (1995): First discovery and investigation of massive ferromanganese crusts in the NE Atlantic in comparison to hydrogenetic Pacific occurrences. Marine Georesources and Geotechnology, 13: 375-391
  • Koschinsky, A. and Halbach, P. (1995): Sequential leaching of marine ferromanganese precipitates: genetic implications. Geochimica et Cosmochimica Acta, 59: 5113-5132