Scholten, Jan Dr.

wiss. Mitarbeiter

Otto-Hahn-Platz 1, R. 114
Telefon: +49 431 880-2866
Telefax: +49 431 880-4432


  • Anwendung von natürlichen Radionukliden zum besseren Verständnis ozeanischer Prozesse
  • Submariner Grundwasserabfluss
  • Altersbestimmung von marinen Ablagerungen
  • Hydrothermale Systeme unterhalb der Meeresbodens


1984              Diplom-Mineraloge an der Universität Heidelberg
1987 PhD in Geochemie an der Universität Heidelberg
1986 - 1988 Wissenschaftlicher Mitarbeiter bei der Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover
1988 - 1993 PostDoc am Sonderforschungsbereich SFB 313 an der CAU Kiel
seit 1993 Wissenschaftlicher Mitarbeiter am Institut für Geowissenschaften der CAU Kiel
2005 - 2011 Wissenschaftlicher Mitarbeiter bei der Internationalen Atomenergie-Organisation (IAEA), Marine Environment Laboratories, Monaco

neue Veröffentlichungen

von Ahn, C.M.E., Scholten, J.C., Malik, C., Feldens, P., Liu, B., Dellwig, O., Jenner, A.-K., Papenmeier, S., Schmiedinger, I., Zeller, M.A. and Böttcher, M.E. (2021) A Multi-Tracer Study of Fresh Water Sources for a Temperate Urbanized Coastal Bay (Southern Baltic Sea). Frontiers in Environmental Science 9. https://doi.org/10.3389/fenvs.2021.642346.

Cabral, A., Dittmar, T., Call, M., Scholten, J., de Rezende, C.E., Asp, N., Gledhill, M., Seidel, M. and Santos, I.R (2021). Carbon and alkalinity outwelling across the groundwater-creek-shelf continuum off Amazonian mangroves. Limnology and Oceanography Letters. https://doi.org/10.1002/lol2.10210.

Garcia-Orellana, J., Rodellas, V., Tamborski, J., Diego-Feliu, M., van Beek, P., Weinstein, Y., Charette, M., Alorda-Kleinglass, A., Michael, H.A., Stieglitz, T. and Scholten, J. (2021) Radium isotopes as submarine groundwater discharge (SGD) tracers: Review and recommendations. Earth-Science Reviews. https://doi.org/10.1016/j.earscirev.2021.103681

Moosdorf, N., Böttcher, M.E., Adyasari, D., Erkul, E., Gilfedder, B.S., Greskowiak, J., Jenner, A.-K., Kotwicki, L., Massmann, G., Müller-Petke, M., Oehler, T., Post, V., Prien, R., Scholten, J., Siemon, B., Ehlert von Ahn, C.M., Walther, M., Waska, H., Wunderlich, T. and Mallast, U. (2021) A State-Of-The-Art Perspective on the Characterization of Subterranean Estuaries at the Regional Scale. Frontiers in Earth Science 9. doi:10.3389/feart.2021.601293

Schubert, M. and Scholten, J. (2021) Natural Radionuclides as Aquatic Tracers in the Terrestrial and the Coastal/Marine Environment. Water 13, 742. https://www.mdpi.com/2073-4441/13/5/742.

Förster, W., Scholten, J.C., Schubert, M., Knoeller, K., Classen, N., Lechelt, M., Richard, J.-H., Rohweder, U., Zunker, I. and Wanner, S.C. (2021) Phosphorous Supply to a Eutrophic Artificial Lake: Sedimentary versus Groundwater Sources. Water 13, 563. https://www.mdpi.com/2073-4441/13/4/563.

Dale, A.W., Sommer, S., Lichtschlag, A., Koopmans, D., Haeckel, M., Kossel, E., Deusner, C., Linke, P., Scholten, J., Wallmann, K., van Erk, M.R., Gros, J., Scholz, F. and Schmidt, M. (2021) Defining a biogeochemical baseline for sediments at Carbon Capture and Storage (CCS) sites: An example from the North Sea (Goldeneye). International Journal of Greenhouse Gas Control 106, 103265. https://doi.org/10.1016/j.ijggc.2021.103265

Hoffmann, J.J.L., Schneider von Deimling, J., Schröder, J.F., Schmidt, M., Held, P., Crutchley, G.J., Scholten, J. and Gorman, A.R. (2020) Complex Eyed Pockmarks and Submarine Groundwater Discharge Revealed by Acoustic Data and Sediment Cores in Eckernförde Bay, SW Baltic Sea. Geochemistry, Geophysics, Geosystems 21, https://doi.org/10.1029/2019GC008825.

Povinec, P.P., Eriksson, M., Scholten, J. and Betti, M. (2020) Chapter 5 - Marine radioactivity analysis, in: L'Annunziata, M.F. (Ed.), Handbook of Radioactivity Analysis: Volume 2 (Fourth Edition). Academic Press, pp. 315-392. https://doi.org/10.1016/B978-0-12-814395-7.00005-2

Vieira, L.H., Krisch, S., Hopwood, M.J., Beck, A.J., Scholten, J., Liebetrau, V. and Achterberg, E.P. (2020) Unprecedented Fe delivery from the Congo River margin to the South Atlantic Gyre. Nature Communications 11, 556. DOI: 10.1038/s41467-019-14255

 Luo, M., Gieskes, J., Chen, L., Scholten, J., Pan, B., Lin, G. and Chen, D. (2019) Sources, Degradation, and Transport of Organic Matter in the New Britain Shelf-Trench Continuum, Papua New Guinea. Journal of Geophysical Research: Biogeosciences; vol. 124, 1680-1695. doi:10.1029/2018JG004691.

Schubert, M., Petermann, E., Stollberg, R., Gebel, M., Scholten, J., Knöller, K., Lorz, C., Glück, F., Riemann, K. and Weiß, H. (2019) Improved Approach for the Investigation of Submarine Groundwater Discharge by Means of Radon Mapping and Radon Mass Balancing. Water 11, 749.DOI:10.3390/w9070468

Eriksson, M., Ämmälä, K., Levy, I., Gastaud, J., Lehto, J. and Scholten, J. (2019) On the use of MnO2 cartridges for the plutonium determination in seawater. Journal of Environmental Radioactivity 204, 66-75 DOI:10.1016/j.jenvrad.2019.04.003

Virtasalo, J.J., Schröder, J.F., Luoma, S., Majaniemi, J., Mursu, J. and Scholten, J. (2019) Submarine groundwater discharge site in the First Salpausselkä ice-marginal formation, south Finland. Solid Earth 10, 405-423 DOI:10.5194/se-10-405-2019

Vieira, L.H., Achterberg, E.P., Scholten, J., Beck, A.J., Liebetrau, V., Mills, M.M. and Arrigo, K.R. (2019) Benthic fluxes of trace metals in the Chukchi Sea and their transport into the Arctic Ocean. Marine Chemistry 208, 43-55.DOI:10.5194/se-10-405-2019

Schubert, M., Oberreich, M. and Scholten, J. (2018) Preparation of MnO2 coated fibers for gamma spectrometric measurements - A comparison of four practical approaches. Journal of Environmental Radioactivity 189, 197-201.

Petermann, E., Knöller, K., Rocha, C., Scholten, J., Stollberg, R., Weiß, H., & Schubert, M. (2018). Coupling endmember mixing analysis and isotope mass balancing (222-Rn) for differentiation of fresh and recirculated submarine groundwater discharge into Knysna Estuary, South Africa. Journal of Geophysical Research: Oceans, 123. https://doi.org/10.1002/2017JC013008

Schuerch, M., Scholten, J., Carretero, S., García-Rodríguez, F., Kumbier, K., Baechtiger, M. and Liebetrau, V. (2016) The effect of long-term and decadal climate and hydrology variations on estuarine marsh dynamics: An identifying case study from the Río de la Plata. Geomorphology 269, 122-132.

Rocha, C., Veiga-Pires, C., Scholten, J., Knoeller, K., Gröcke, D.R., Carvalho, L., Anibal, J. and Wilson, J. (2016) Assessing land–ocean connectivity via submarine groundwater discharge (SGD) in the Ria Formosa Lagoon (Portugal): combining radon measurements and stable isotope hydrology. Hydrol. Earth Syst. Sci. 20, 3077-3098.



Rocha, C., Wilson, J., Scholten, J. and Schubert, M., 2015. Retention and fate of groundwater-borne nitrogen in a coastal bay (Kinvara Bay, Western Ireland) during summer. Biogeochemistry 125(2), 275-299.

Rapaglia, J., Grant, C., Bokuniewicz, H., Pick, T. and Scholten, J., 2015. A GIS typology to locate sites of submarine groundwater discharge. Journal of Environmental Radioactivity 145, 10-18.



Schubert, M., Scholten, J., Schmidt, A., Comanducci, J. F., Khanh Pham, M., Mallast, U. and Knoeller, K., 2014. Submarine Groundwater Discharge at a Single Spot Location: Evaluation of Different Detection Approaches. Water 6(3), 584-601.



Du, J. Z., Moore, W. S., Huh, C. A., Wang, G. Z., Scholten, J., Henderson, P., Men, W., Rengarajan, R., Sha, S. Z. and Jiao, J. J., 2013. Inter-comparison of radium analysis in coastal sea water of the Asian region. Marine Chemistry 156, 138-145.

Scholten, J. C., Osvath, I. and Khanh Pham, M., 2013. 226Ra measurements through gamma spectrometric counting of radon progenies: How significant is the loss of radon? Marine Chemistry, 156, 146-152.



Kenna, T. C., Masqué, P., Mas, J. L., Camara-Mor, P., Chamizo, E., Scholten, J., Eriksson, M., Sanchez-Cabeza, J.-A., Gastaud, J., Levy, I., Herrmann, J., Lindahl, P., Hong, G.-H. and Nielsen, S., 2012. Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program. Limnology and Oceanography: Methods 10, 590-607.

Charette, M. A., Dulaiova, H., Gonneea, M. E., Henderson, P. B., Moore, W. S., Scholten, J. C. and Pham, K. M., 2012. GEOTRACES radium isotopes interlaboratory comparison experiment. Limnology and Oceanography: Methods 10, 451-463.

Povinec, P. P., Eriksson, M., Scholten, J. and Betti, M., 2012. Chapter 12 - Marine Radioactivity Analysis. In: Handbook of Radioactivity Analysis (Third Edition), L'Annunziata, M. F. (Ed.), Academic Press, Amsterdam, 769-832.

Copard, K., Colin, C., Henderson, G. M., Scholten, J., Douville, E., Sicre, M. A. and Frank, N., 2012. Late Holocene intermediate water variability in the northeastern Atlantic as recorded by deep-sea corals. Earth and Planetary Science Letters 313-314, 34-44.



Botz, R., Schmidt, M., Kus, J., Ostertag-Henning, C., Ehrhardt, A., Olgun, N., Garbe-Schönberg, D. and Scholten, J., 2010. Carbonate recrystallisation and organic matter maturation in heat-affected sediments from the Shaban Deep, Red Sea. Chemical Geology 230, 126-143.

Tsabaris, C., Scholten, J., Karageorgis, A. P., Comanducci, J. F., Georgopoulos, D., Wee Kwong, L. L., Patiris, D. L. and Papathanassiou, E., 2010. Underwater in-situ measurements of radionuclides  in selected submarine groundwater springs, Mediterranean Sea. Radiation Protection Dosimetry, 1-9.

Scholten, J. C., Pham, M. K., Blinova, O., Charette, M. A., Dulaiova, H. and Eriksson, M., 2010. Preparation of Mn-fiber standards for the efficiency calibration of the delayed coincidence counting system (RaDeCC). Marine Chemistry 121, 206-214.



Szczucinski, W., Zajaczkowski, M. and Scholten, J., 2009. Sediment accumulation rates in subpolar fjords - Impact of post-Little Ice Age glaciers retreat, Billefjorden, Svalbard. Estuarine, Coastal and Shelf Science 2009, 345-356.

Szczuciński, W., Stattegger, K. and Scholten, J.,  2009. Modern sediments and sediment accumulation rates on the narrow shelf off central Vietnam, South China Sea, Geo-Mar Lett. DOI 10.1007/s00367-00008-00122-00366.



Dekov, V., Scholten, J., Garbe-Schönberg, C.-D., Botz, R., Cuadros, J., Schmidt, M. and Stoffers, P., 2008. Hydrothermal sediment alteration at a seafloor vent field: Grimsey Graben, Tjörnes Fracture Zone, north of Iceland, Journal Geophysical Research 113 B11101, doi:11110.11029/12007JB005526.

Scholten, J.C., Fietzke, J., Mangini, A., Garbe-Schönberg, C.-D., Eisenhauer, A., Schneider, R. and Stoffers, P., 2008. Advection and Scavenging: Effects on 230Th and 231Pa Distribution off Southwest-Africa, Earth and Planetary Science Letters 271, 159-169.

Charette M. A. and Scholten J. C., 2008. Marine Chemistry special issue: The renaissance of radium isotopic tracers in marine processes studies. Marine Chemistry 109(3-4), 185.



Marchal O., Francois R. and Scholten J., 2007. Contribution of 230Th measurements to estimation of the abyssal circulation. Deep Sea Research 54, 557-585.

Dekov V. M., Scholten J. C., Botz R., Garbe-Schönberg C.-D. and Stoffers P., 2007. Fe-Mn-(hydr)oxide-carbonate crusts from the Kebrit Deep, Red Sea. Marine Geology 236, 95-119.



Burnett W. C., Aggarwal P. K., Aureli A., Bokuniewicz H., Cable J. E., Charette M. A., Kontar E., Krupa S., Kulkarni K. M., Loveless A., Moore W. S., Oberdorfer J. A., Oliveira J., Ozyurt N., Povinec P., Privitera A. M. G., Rajar R., Ramessur R. T., Scholten J., Stieglitz T., Taniguchi M. and Turner J. V., 2006. Quantifying submarine groundwater discharge in the coastal zone via multiple methods. Science of the Total Environment 367, 498-543.

Lackschewitz K. S., Botz R., Garbe-Schönberg D., Scholten J. and Stoffers P., 2006. Mineralogy and geochemistry of clay samples from active hydrothermal vents off the north coast of Iceland. Marine Geology 225, 177-190.

Scholten J. C., Fietzke J., Mangini A., Stoffers P., T. R., Gaye-Haake B., Blanz T., Ramaswamy V., Sirocko F., Schulz H. and Ittekkot V., 2005. Radionuclide fluxes in the Arabian Sea: The role of particle composition. Earth Planet. Sci. Lett. 230, 319-337.



Moran S. B., Shen C.-C., Edwards R. L., Edmonds H. N., Scholten J. C., Smith J. N. and Ku T.-L., 2005. 231Pa and 230Th in surface sediments of the Arctic Ocean: Implications for 231Pa/230Th fractionation, boundary scavenging, and advective export. Earth Planet. Sci. Lett. 234, 235-248.

Dekov V. M., Scholten J., Botz R., Garbe-Schönberg C.-D., Thiry M., Stoffers P. and Schmidt M., 2005. Occurrence of kaolinite and mixed-layer kaolinite/smectite in hydrothermal sediments of Grimsey Graben, Tjörnes Fracture Zone (north of Iceland). Marine Geology 215, 159-170.



Scholten, J.C., Scott S. D., Garbe-Schönberg C.-D., Fietzke J., Blanz T. and Kennedy C. B., 2004. Hydrothermal Iron and Manganese Crusts from the Pitcairn Hotspot Region. In Oceanic Hotspots (ed. R. Hekinian, P. Stoffers, and J.-L. Cheminée), pp. 375-405. Springer-Verlag.



Müller D., Herzig P., Scholten J. C. and Hunt S., 2002. Ladolam gold deposits, Lihir Island, Papua New Guinea: Gold mineralization hosted by alkaline rocks. Society of Economic Geologists(Special Publication 9), 367-382.



Hannington, M., Herzig, P., Stoffers, P., Scholten, J., Botz, R., Garbe-Schönberg, D., Jonasson, I.R. and Roest, W., 2001. First observations of high-temperature submarine hydrothermal vents and massive anhydrite deposits off the north coast of Iceland. Marine Geology 177, 199-220.

Heiser, U., Neumann, T., Scholten, J. and Stüben, D., 2001. Recycling of manganese from anoxic sediments in stagnant basins by seawater inflow: a study of surface sediments from the Gotland Basin, Baltic Sea. Marine Geology 177, 151-166.

Scholten, J.C., Fietzke, F., Vogler, S., Rutgers van der Loeff, M., Mangini, A., Koeve, W., Waniek, J., Stoffers, P., Antia, A. and Kuss, J., 2001. Trapping efficiencies of sediment traps from the deep eastern North Atlantic: The 230Th calibration. Deep Sea Research 48, 2383-2408.



Scholten, J.C., Lackschewitz, K.S., Marching, V., Stoffers, P. and Mangini, A., 2000. 230Th/234U and 231Pa/235U disequilibria in massive sulfides from the Bent Hill area (Leg 139 and169), in: Zierenberg, R.A., Fouquet, Y., Miller, D.J., Normark, W.R. (Eds.), Proceedings of Ocean Drilling Project, Scientific Results 169, 1-15.



Scholten, J.C., Stoffers, P., Garbe-Schönberg, D. and Moammar, M., 1999. Hydrothermal mineralisation in the Red Sea, in: Cronan, D.S. (Ed.), Handbook of Marine Mineral Deposits. CRC Marine Science Series,Press Inc., 369-395.

Bollhöfer, A., Frank, N., Rohloff, S.M., Mangini, A. and Scholten, J.C., 1999. A record of changing redox conditions in the northern Peru basin during the late Quaternary deduced from Mn/Fe- and growth rate variations in two diagenetic manganese nodules. Earth Planet. Sci. Lett. 170, 403-415.

Scholten, J.C., Stoffers, P., Garbe-Schönberg, D. and Moammar, M., 1999. Hydrothermal mineralisation in the Red Sea, in: Cronan, D.S. (Ed.), Handbook of Marine Mineral Deposits. CRC Marine Science Series,Press Inc., 369-395.



Vogler, S., Scholten, J., Rutgers van der Loeff, M.M. and Mangini, A., 1998. 230Th in the eastern North Atlantic: The importance of water mass ventilation in the balance of 230Th. Earth Planet. Sci. Lett. 156, 61-74.



Rutgers van der Loeff, M.M., Key, R.M., Scholten, J., Bauch, D. and Michel, A., 1995. 228Ra as a tracer for shelf water in the arctic ocean. Deep Sea Research Part II: Topical Studies in Oceanography 42, 1533.

Scholten, J.C., Rutgers van der Loeff, M.M. and Michel, A., 1995. Distribution of 230Th and 231Pa in the water column in relation to ventilation of the deep Arctic basins. Deep-Sea Research II 42, 1519-1531.



Hodkinson, R.A., Stoffers, P., Scholten, J., Cronan, D.S., Jeschke, G. and Rogers, T.D.S., 1994. Geochemistry of hydrothermal manganese deposits from the Pitcairn Island hotspot, southeastern Pacific. Geochimica et Cosmochimica Acta 58, 5011-5029.

Scholten, J., Botz, R., Paetsch, H., Stoffers, P. and Weinelt, M., 1994. High resolution uranium-series dating of Norwegian-Greenland Sea sediments: 230Th vs. 18O. Marine Geology 121, 77-85.

Scholten, J.C., Botz, R., Paetsch, H. and Stoffers, P., 1994. 230Thex flux into Norwegian-Greenland Sea sediments: Evidence for lateral sediment transport during the past 300,000 years. Earth Planet. Sci. Lett. 121, 111-124.

Stüben, D., Taibi, N.E., McMurtry, G.M., Scholten, J., Stoffers, P. and Zhang, D., 1994. Growth history of a hydrothermal silica chimney from the Mariana backarc spreading center (southwest Pacific, 18°13'N). Chemical Geology 113, 273-296.



Paetsch H., Botz R., Scholten J. C. and Stoffers P., 1992. Accumulation rates of surface sediments in the Norwegian-Greenland Sea. Marine Geology 104, 19-30.



Scholten J. C., Stoffers P., Walter P. and Plüger W., 1991. Evidence for episodic hydrothermal activity in the Red Sea from the composition and formation of hydrothermal sediments, Thetis Deep. Tectonophysics 190, 109-117.



Scholten J. C., Botz R., Mangini A., Paetsch H., Stoffers P. and Vogelsang E., 1990. High resolution 230Th stratigraphy of sediments from high-latitude areas (Norwegian Sea, Fram Strait). Earth Planet. Sci. Lett. 101, 54-62.

Stoffers, P, Hekinian, R, Ackermand, D, Binard, N, Botz, R, Devey, C. W, Hansen, D, Hodkinson, R.A., Jeschke,G., Lange, J, von, der Perre, E, Scholten, J., Schmitt, M., Sedwick, P. and Woodhead, J.D., 1990. Active Pitcairn hotspot found. Marine Geology. 95, 51-55.

Stoffers, P., Botz, R. and Scholten, J.C., 1990. Isotope geochemistry of primary and secondary carbonate minerals in the Shaban-Deep (Red Sea). In: Sediments and environmental geochemistry; selected aspects and case histories. Heling, D., Rothe, P., Foerstner, U., Stoffers, P. (editors), 83-94.


Other publications/Conference contributions

Scholten, J., Kreuzburg, M., Knoeller, K., Rapaglia, J., Schlüter, M. and Schubert, M., 2015. Submarine Groundwater Discharge controlled by wind: An example from Eckernförde Bay, Southwestern Baltic Sea. European Geosciences Union General Assembly, 2015, Vienna, Austria.

Scholten, J. , Kreuzburg, M., Knoeller, K., Rapaglia, J., Schlüter, M., Schubert, M., 2014. Submarine groundwater discharge in the southwestern Baltic Sea. Submarine groundwater discharge in the southwestern Baltic Sea. SWIM 23rd Salt Water Intrusion Meeting, Husum, Germany.

Scholten, J., Kreuzburg, M., Knoeller, K., Rapaglia, J., Schlüter, M. and Schubert, M., 2013. Submarine groundwater discharge in the southwestern Baltic Sea. 9th Baltic Sea Science Congress, Klaipeda, Lithuania.

Scholten, J., Rocha, C., Wilson, J., Pham, M., Veiga-Pires, C. and Aníbal, J., 2012. Estimating submarine groundwater discharge into the Ria Formosa lagoon, Portugal: Uncertainties in the lagoon-open ocean radium exchange. 4 th International Ra-Rn Workshop 4 th International Ra-Rn Workshop, Rhode Island.

Rocha, C., Veiga-Pires, C., J. Wilson, Anibal, J., Monteiro, J.-P. and Scholten, J.: Ecosystem-level impact signals of groundwater borne continental nitrate transfer to the Ria Formosa lagoon by Submarine Groundwater Discharge (SGD) traced along the mixing gradient by a multi-indicator approach. Mineralogical Magazine 75.3: 1738.

Scholten J., Pham M.K. and Dulaiova H., 2008. Reference material for the delayed coincidence counting system (RaDeCC): Preparation of Mn-fibers and testing the chance coincidence corrections. Workshop “Measurement and Application of Radium and Radon Isotopes in Environmental Sciences" 7-11 April 2008, Venice, Italy.

Scholten, J.C. and J. Fietzke. Do particulate 231Pa/230Th ratios depend on water depth? Geochem. Cosmochim. Acta. Vol. 71, Suppl. 1 (2007) A903.

Schubert, M., Schmidt, A., Scholten, J., Rutgers van der Loeff, M.M. and Schlueter, M. Using 222Rn for assessing nutrient transfer into the sea via SGD, Geochem. Cosmochim. Acta., Vol. 71, Suppl. 1 (2007) A906.

Scholten J. C., Schubert M., Schmidt A., Rutgers van der Loeff M. M., Schlüter M, Pham M. K., Knöller K., Comanducci J.-F. and Sanchez-Cabeza J. A., 2007. Submarine groundwater discharge to the Mediterranean Sea: a case study off Monaco. Advances in isotope hydrology and its role in sustainable water resources management.  Proceedings of a Symposium, Vienna, 21-25 May 2007. IAEA, STI/PUB/1310 1, 641-648.

Szczucinski, W., Stattegger, K. and Scholten, J., Modern sediment accumulation rates and sediment transport in the monsoonal narrow shelf setting off central Vietnam, South China Sea.  (2006). Abstract, 17th International Sedimentological Congress, Fukuoka Japan, P-111.

Szczucinski, W., Scholten, J. and Zajaczkowski, M. Impact of glaciers retreat on sediment accumulation rates in fjords – changes following “Litte Ice Age” in Billefjorden, Svalbard. Presented at the Fourth ESF SEDIFLUX Science Meeting & First Workshop of I.A.G./A.I.G. SEDIBUD Source-to-Sink-Fluxes and Sediment Budgets in Cold Environments, Trondheim, Norway.

Pouiivsev, M, Arazi, A., Faestermann, T., Knie, K., Korschinek, G., Rügel, G., Scholten, J., Magini, A. and Wallner, A., 2004. 53Mn in ferromanaganes crusts: a new approach for dating.- International Geological Congress, Florence, abstr, 921.

Scholten, J.C., Fietzke, J., Mangini, A. and Zenk,W.: Advection controls water-column distribution of 230Th and 231Pa in the eastern North Atlantic, 2003. EGS-AGU-EUG Joint Assembly, Nice.

Scholten, J.C., Fietzke, J., Mangini, A. and Zenk, W.: 230Th and 231Pa in the eastern North Atlantic: tracer for water mass advection ? (2003) Jahrestagung der Deutschen Geologischen Vereinigung.

Scholten J. C., Fietzke J., Mangini A., Stoffers P. and Ittekkot V., 2002. Seasonal and spatial controls of 230Th/231Pa ratios in the Arabian Sea. Geochim. Cosmochim. Acta, abstracts 66(15A), A685.

Fietzke J., Garbe-Schönberg C.-D., Scholten J., Arpe T. and Mangini A., 2000. High precision uranium series isotope determination by high resolution sector-field ICP mass spectrometry. EOS 80, 77-78.

Scholten, J., Fietzke, J., Koeve, W., Rutgers van der Loeff, M., Mangini, A., Antia, A., Neuer, S., Schulz-Bull, D. and Waniek, J., 2000. Comparing fluxes intercepted by deep sediment traps in the eastern North Atlantic: the effect of trapping biases. Ocean Science Meeting, EOS 80, no. 49, OS 122.

Scholten, J., Stoffers, P., Garbe-Schönberg, D. and Moammar, M., 1999. Hydrothermal activity in the Atlantis-II-Deep and the Kebrit-Deep, Red Sea: Results from the Meteor 31/2 (1995) and Sonne 121 (1997) cruises. Second Symposium on Red Sea Marine Environment, Jeddah, Saudi-Arabia.

Scholten J. C., Theilen F., Herzig P. and Schmidt M., 1999. Hydrothermal activity along the Tjoernes Fracture Zone, north of Iceland: Initial results of R/V POSEIDON cruises 252 and 253. Inter Ridge News 8, 28-31.

Scholten, J., Fietzke, J., Walter, H.J., Mangini, A., Sirocko, F. and Ittekkot, V., 1999. Bilanzierungen von Partikelflüssen im Arabischen Meer.Statusseminar, Meeresforschung mit FS Sonne, Freiberg 1999, 259-260.

Fietzke J., Scholten J. C. and Mangini A., 1998. Distribution of protactinium and thorium isotopes in the Arabien Sea. Mineral. Mag. 62a, 457.

Garbe-Schönberg, D., Scholten, J. C., Stoffers, P. and Moammar, M., 1998. Trace element chemistry of brines and brine-interfaces in the Atlantis-II-Deep, Chain, and Discovery Deeps in the Red Sea. EOS 79 (45), AGU Fall meeting, San Francisco.

Scholten, J. C., Vogler, S., Mangini, A., Rutgers v. d. Loeff, M.M. and Stoffers, P., 1998. Trapping efficiency of sediment traps from the deep North Atlantic: evidence from natural radionuclides. EOS 79, 70. Ocean Science Meeting, San Diego.

Vogler, S., Scholten, J., Mangini, A. and Rugers van der Loeff, M.M., 1995. Natürliche Radionuklide als Tracer für Partikeldynamik im Nordatlantik.- Berichte, Fachbereich Geowissenschaften, Universität Bremen, Nr. 62: 60-61.

Scholten, J. C., Vogler, S., Mangini, A., Rutgers v. d. Loeff, M.M. and Stoffers, P., 1995. Natural radionuclides as tracers for particel dynamics in the water column.- First JGOFS International Scientific Symposium, Villefranche, 66, abstr.

Scholten, J.,  Eisenhauer, A., Mangini, A., Rutgers van der Loeff, M.M. and Stoffers, P., 1994. Radionukliduntersuchungen als Beitrag zum Verständnis der Partikeldynamik in derc Wassersäule - Vorstellung eines neuen JGOFS-Projektes.- Berichte, Fachbereich Geowissenschaften, Universität Bremen, Nr. 45: 78-79.

Scholten, J. C., Bohrmann, H., Botz, R., Mangini, A., Paetsch, H., Stoffers, P. and Thied, J., 1989. Dating sediment cores from the Artic Ocean Fram Strait, and Norwegian Sea using 230Th method.- Third International Conference on Paleocenaogarphy, Abstr., 67.

Scholten, J. C. and Walter, P., 1988. Sedimentuntersuchungen as Beitrag zur Prospektion hydrothermal aktiver Rückensegemente.- Statusseminar MarineRohstoffe, Goslar, Abstr.

Quin, J., Kufdrass, H. and Scholten, J. C., 1988. Isotopic stratigraphy and carbonate conetnets of four piston cores from the northern part of South China Sea, continental slope.- First International Conference on Asian Marine Geology, Shangahi, Proceedings of the Conference.

Scholten, J. C., 1987. Ein Beitrag zur Geochemie und Sedimentationsgeschichte am Carlsberg- und Mittelindischen Rücken. Dissertation Universität Heidelberg, 151p.

Scholten, J. C., Soffers, P., Walter, P. and Plüger, W., 1985. Hydrothermale Sedimente aus dem Thetis-Tief, Rotes Meer. Fortschr. Min. 63 (1), 212.

Scholten, J. C.; Stoffers, P. Walter, P. and Plüger, W., 1985. Hydrothermale Sedimente aus dem Thetis-Tief.- Fortschr. Min., 62 (1), 212.

Scholten, J. C. 1984. Mineralogische Untersuchungen an Sedimenten aus dem Thetis Tief, Rotes Meer. Diplomarbeit, Universität Heidelberg, 53 p.


Climate - Biogeochemistry Interactions in the Tropical Oceans (SFB 754)

Collaborators:Logo SFB 754

several institutes at Kiel University

The Collaborative Research Center (SFB 754) addresses the relatively newly recognized threat of ocean deoxygenation, its possible impact on tropical oxygen minimum zones and implications for the global climate-biogeochemistry system. The overall goal of the SFB 754 is to improve understanding of the coupling of tropical climate variability and circulation with the ocean's oxygen and nutrient balance, to quantitatively evaluate the nature of oxygen-sensitive tipping points, as well as to assess consequences for the Ocean's future.

For further information please visit: http://www.sfb754.de/en/?Home


The importance of submarine groundwater discharge for the southwestern Baltic Sea (SGDBALTIC)Logo SGDBALTIC

Alfred-Wegner Institute, Bremerhaven
Helmholtz Centre for Environmental Research, Leipzig

This project investigates the occurrence of submarine groundwater discharge in the southwestern Baltic Sea and the potential impact of SGD on the coastal environment (EU FP7 funded).

Transport and Fluxes across the benthic boundary layer – subproject within the special research project SFB 754 “Climate - Biogeochemistry Interactions in the Tropical Ocean” (further information: http://www.sfb754.de/en/?Home)


Groundwater/seawater along the south African coast and its effects on sustainable coastal and water resource management (SPACES).

Collaborators: Logo SPACES
Helmholtz Centre for Environmental Research, Leipzig (project coordinator)
Weihenstephan-Triesdorf University of Applied Sciences
Leibniz Institute for Baltic Sea Research, Warnemünde
Council for Scientific and Industrial Research, Western Cape, South Africa

This collaborative project investigates the groundwater/seawater interaction (GSI) along the South African south coast between False Bay and East London with the focus on the impact of groundwater discharge on coastal environments and its effects on marine biota. Furthermore the vulnerability of aquifers due to land use changes and due to groundwater overexploitation is studied (BMBF funded).

For further information please visit: http://www.spaces-gsi.com/


Biogeochemistry of trace metals and their isotopes in the southeastern Atlantic. RV Meteor cruise M121.M121

Principal investigators:
Prof. Dr. M. Frank
Prof. Dr. E. Achterberg
Prof. Dr. Andrea Koschinsky

This cruise is part of the internationally coordinated program GEOTRACES. The main goal of the cruise is to determine in detail the distributions of trace elements and their isotopes (TEIs) in the water column of the SE Atlantic in order to constrain TEI supply and removal mechanisms, their biogeochemical cycling, and their interaction with the nitrogen cycle in the study region. The focus of our group will be on the distribution radium isotopes to investigate the origin and fluxes of TEIs. (DFG funded).


New surveillance tools for remote sea monitoring and their application on submarine groundwater discharge and seabed surveys (BONUS SEAMOUNT)


Bonus SeamountBounsForschungszentrum Jülich
CAU personnel involved:

Jan Scholten

Jan F. Schröder

In this project, the technology for an innovative underwater vehicle with the capability of complex real-time sea surveys will be established. The modular design of the platform includes a radon sensor for the detection and monitoring of submarine groundwater discharge (SGD) sources, UW-video camera, multiparameter probe (CTD, pH, oxygen, nutrients and others), and subsystems for autonomous navigation and communication. The system will be tested and compared with conventional measurements at SGD sites in the Eckernfoerde Bay (Germany), the Horsens Estuary (Denmark) and offshore southern Finland. Integrated hydrological modelling and additional permanent monitoring will allow investigating the importance of SGD for nutrient and pollutant fluxes to the Baltic Sea.


Funded by the BONUS Baltic Sea research and development programme, and the Federal Ministry of Education and Research, Germany.


Abgeschlossene Projekte

Assessing the submarine groundwater discharge flux to meet potable water demand and improve domestic water supply in coastal regions (Mauritius). (IAEA funded)

Mauritius Oceanography Institute, Mauritius
Alfred-Wegener Institute, Bermerhaven


DFG Priority-Program 1144: From Mantle to Ocean: Energy-, Material- and Life-cycles at Spreading Axes”

Project: Temporal evolution of hydrothermal systems at the Mid-Atlantic Ridge (14°45 - 15°05 N).



For further information please visit: http://www.geomar.de/en/research/fb4/fb4-muhs/projects/spp1144/