Dr. Torsten Bickert

1982-88 Study of Geology, Oceanography und Geophysics at University of Kiel, Diplom
1989-92 PhD at the Fachbereich Geowissenschaften, University of Bremen
1992-97 PostDoc within several projects related to the DFG priority program DSDP/ODP
1997 - Senior scientist at MARUM, University of Bremen
2004 - Co-chair of the Research Area Ocean and Climate, Research Center and Excellencecluster "The Ocean in the Earth System"

Lecturer in the field of Geosciences, Marine Geology and Paleoceanography

- stable isotopes and trace elements in calcareous marine organisms
- carbon cycle in ocean and atmosphere
- Neogene stratigraphy and climate
- Reconstruction of Neogene deep ocean circulation
- Paleozoic climate reconstruction

General Geosciences
Introduction to rocks
Field trip Helgoland
Field trip Eastern Alpine Mountains
Research Seminar for Master Students
Marine Geology, Paleoceanography
Stratigraphy of marine sediments
Seminar Marine Environment
Stable Isotopes and Trace Elements in Paleoenvironmental Research
Marine Environmental Archives Project
Postgraduate education
Courses within the graduate training on
- Cenozoic paleoceanography
- Time-Series Analysis
- Abrupt Climate Changes

2011-
Vandenbroucke T. R. A., Munnecke A., Leng M. J., Bickert T., Hints O., Gelsthorpe D., Maier G. and Servais T. (2013) Reconstructing the environmental conditions around the Silurian Ireviken Event using the carbon isotope composition of bulk and palynomorph organic matter, Geochem. Geophys. Geosyst., doi: 10.1029/2012GC004348.

Zeeden, C., Hilgen, F., Westerhold, T., Lourens, L., Röhl, U., Bickert, T. (2012) Revised Miocene splice, astronomical tuning and calcareous plankton biochronology of ODP Site 926 between 5 and 14.4 Ma. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2012.11.009.

Just, J., Dekkers, M. J., Dobeneck, T. v., Hoesel, A.v., Bickert, T. (2012) Signatures and significance of aeolian, fluvial, bacterial and diagenetic magnetic mineral fractions in Late Quaternary marine sediments off Gambia, NW Africa. Geochem. Geophys. Geosyst., doi:10.1029/2012GC004146.

Just, J., Heslop, D., Dobeneck, T. V. , Bickert, T., Dekkers, M., Frederichs, T., Meyer. I., Zabel, M. (2012) Multi-proxy characterization and budgeting of terrigenous end-members at the NW African continental margin. Geochem. Geophys. Geosyst., doi:10.1029/2012GC004148.

Raitzsch, M., Hathorne, E., Kuhnert, H., Groeneveld, J., and Bickert, T. (2011) Modern and Late Pleistocene B/Ca ratios of the benthic foraminifer Planulina wuellerstorfi determined with laser ablation ICP-MS. Geology, doi: 10.1130/G32009.1.

Hesse, T., Butzin, M., Bickert. T., and Lohmann, G. (2011) A model-data comparison of δ13C in the glacial Atlantic Ocean. Paleoceanography 26: PA3220, doi:10.1029/2010PA002085.

Haarmann, T., Hathorne, E., Mohtadi, M., Groeneveld, J., Kölling, M., Bickert, T. (2011) Mg/Ca ratios of single planktonic foraminifer shells and the potential to reconstruct the thermal seasonality of the water column. Paleoceanography 26: PA3218, doi:10.1029/2010PA002091.

Heinrich, S., Zonneveld, K.A.F., Bickert, T., Willems, H. (2011) The Benguela upwelling related to the Miocene cooling events and the development of the Antarctic Circumpolar Current: evidence from calcareous dinoflagellate cysts. Paleoceanography 26: PA3209, doi:10.1029/2010PA002065.

Rackebrandt, N., Kuhnert, H., Groeneveld, J., and Bickert, T. (2011) Persisting maximum Agulhas leakage during MIS 14 indicated by massive Ethmodiscus oozes in the subtropical South Atlantic. Paleoceanography 26: PA3202, doi:10.1029/2010PA001990.

Raitzsch, M., Kuhnert, H., Hathorne, E., Groeneveld, J., and Bickert, T. (2011) U/Ca in benthic foraminifers: A proxy for the deep-sea carbonate system. Geochem. Geophys. Geosyst. 12: Q06019, doi:10.1029/2010GC003344.

Butzin, M., Lohmann, G., and Bickert, T. (2011) Miocene ocean circulation inferred from marine carbon cycle modeling combined with benthic isotope records. Paleoceanography 26: PA1203, doi:10.1029/2009PA001901.

Bickert, T., Henrich, R. (2011) Climate records of deep-sea sediments: Towards the Cenozoic Ice House. In: Hüneke, H., Mulder, T. (eds) Developments in Sedimentology: Deep-Sea Sediments 63: 793-823.

2006 - 2010
Raitzsch, M., Dueñas-Bohórquez, A., Reichart, G.-J., de Nooijer, L. J., and Bickert, T. (2010) Incorporation of Mg and Sr in calcite of cultured benthic foraminifera: impact of calcium concentration and associated calcite saturation state. Biogeosciences, 7, 869-881.

Itambi, A.C., von Dobeneck, T., Mulitza, S., Bickert, T., Heslop, D. (2009) Millennial-scale North West African droughts relates to H Events and D O Cycles: Evidence in marine sediments from off-shore Senegal. Paleoceanography, 24, PA1205.

Karas C., Nürnberg D., Gupta A. K., Tiedemann R., Mohan K., Bickert T. (2009) Mid-Pliocene climate change amplified by a switch in Indonesian subsurface throughflow. Nature Geoscience, doi 10.1038/NGEO520.

Kuhnert H., Bickert T., Paulsen H. (2009) Southern Ocean frontal system changes precede Antarctic ice sheet growth during the middle Miocene. Earth Planet. Sci. Lett. 284: 630–638, doi:10.1016/j.epsl.2009.05.030.

Wilke, I., Meggers, H., Bickert, T. (2009) Depth habitats and seasonal distributions of recent planktic foraminifers in the Canary Islands region (29°N) based on oxygen isotopes. Deep-Sea Research I, doi:10.1016/j.dsr.2008.08.001.

Tjallingii, R., Claussen, Stuut, J-B., Fohlmeister, J., Jahn, A., Bickert, T., Lamy, F., Röhl, U. (2008) Coherent high- and low latitude control of the Northwest African hydrological balance. Nature Geosciences, 1: 670-675, doi:10.1038/ngeo289.

Hoenisch, B., Bickert, T., Hemming, N. G. (2008) Modern and Pleistocene boron isotope composition of the benthic foraminifer Cibicidoides wuellerstorfi. Earth and Planetary Science Letters, 272: 309–318.

Raitzsch, M., Kuhnert,H., Groeneveld, J., and Bickert, T. (2008) Benthic foraminifer Mg/Ca anomalies in South Atlantic core top sediments and their implications for paleothermometry, Geochem. Geophys. Geosyst., doi:10.1029/2007GC001788.

Brijker, J.M., Jung, S.J.A. , Ganssen, G.M. , Bickert , T., Kroon, D. (2007) ENSO related decadal scale climate variability from the Indo-Pacific Warm Pool. Earth and Planetary Science Letters, 253: 67-82.

Lohmann, G., Butzin, M., Micheels, A., Bickert, T., and Mosbrugger, V. (2006) Effect of vegetation on the Late Miocene ocean circulation. Climate of the Past 2:605-631.

Tjallingii, R., Röhl, U., Kölling, M., Bickert, T. (2007) Influence of the water content on X-ray fluorescence core scanning measurements in soft marine sediments. Geochem. Geophys. Geosyst., 8, Q02004, doi:10.1029/2006GC001393.

Bickert, T. (2006) Influence of geochemical processes on stable isotope distribution in marine sediments. In H. D. Schulz and M. Zabel (eds.): Marine Geochemistry (2. ed). Springer Verlag, Berlin, p. 339-369.

Wilke, I., Peeters, F., Bickert, T. (2006) The influence of seawater carbonate ion concentration [CO32-] on the stable carbon isotope composition of planktic foraminifera species Globorotalia inflata. Marine Micropaleontology, 58: 243-258.

2001 - 2005
Westerhold, T., Bickert, T., Röhl, U. (2005) Middle to Late Miocene oxygen isotope stratigraphy of ODP Site 1085 (SE Atlantic): new constraints on Miocene climate variability and sea level fluctuations. Palaeogeography, Palaeoclimatology, Palaeoecology, 217:205-222.

Diester-Haass, L., Meyers, P. A., Bickert, T. (2004) The middle to late Miocene "carbonate crash" and "biogenic bloom" in the Southeast Atlantic Ocean: Evidence from ODP Sites 1085, 1086, and 1087 in the Cape Basin. Paleoceanography, 19: PA 1007: 1-19.

Bickert, T., Haug, G., Tiedemann, R. (2004) Late Neogene benthic stable isotope record of ODP Site 999: Implications for Caribbean paleoceanography, organic carbon burial and the Messinian Salinity Crisis. Paleoceanography, 19: PA 1023: 1-11.

Matthies, M., Bickert, T., and Paul, A. (2004) Last Glacial d13C distribution and deep-sea circulation in the Atlantic Ocean: A model - data comparison. In: Wefer, G., Mulitza, S., Rathmeyer, V. , The South Atlantic during the Late Quaternary. Springer, Berlin, pp. 695-722

Bickert, T., Mackensen, A. (2004) Last Glacial to Holocene changes in South Atlantic deep water circulation. In: Wefer, G., Mulitza, S., Rathmeyer, V. (eds), The South Atlantic during the Late Quaternary. Springer, Berlin, pp. 671-695.

Munnecke, A., Samtleben, C., Bickert, T. (2003) The Ireviken Event in the lower Silurian of Gotland, Sweden - relation to similar Palaeozoic and Proterozoic events. Paleaeogeography, Palaeoclimatology, Paleaeoecology, 195: 99-124.

Gröger , M., Henrich, R., Bickert, T. (2003) Glacial - interglacial variability in lower North Atlantic deep water:inference from silt grain-size analysis and carbonate preservation in the western equatorial Atlantic. Marine Geology 201: 321-332.

Gröger , M., Henrich, R., Bickert, T. (2003) Variability of silt grain size and planktonic foraminiferal preservation in Plio/Pleistocene sediments from the western equatorial Atlantic and Caribbean. Marine Geology 201: 307-320.

Vidal, L., Bickert, T., Röhl, U., Wefer, G. (2002) Late Miocene stable isotope stratigraphy of SE Atlantic ODP Site 1085: Relation to Messinian events. Marine Geology, 180: 71-85.

Samtleben, C., Munnecke, A., Bickert, T. (2001) Shell construction, assemblage and species dependend effects on C/O isotopes in brachiopods - examples from the Silurian of Gotland. Chemical Geology 175: 61-107.

1996 - 2000
Bickert, T. (2000) Influence of geochemical processes on stable isotope distribution in marine sediments. In H. D. Schulz and M. Zabel (eds.): Marine Geochemistry. Springer Verlag, Berlin, p. 309-334.

Samtleben, C., Munnecke, A., Bickert, T. (2000 Development of Facies and C/O-isotopes in Transects through the Ludlow of Gotland: Evidence for Global and Local Influences on a Shallow-marine Environment. Facies, 43: 1-38.

Zabel, M., Bickert, T., Dittert, L., Haese, R. (1999) The significance of the sedimentary Al/Ti-ratio as indicator for reconstructions of the terrestrial input to the equatorial Atlantic. Paleoceanography, 14: 789-799.

Dittert, N., Baumann, K. H., Bickert, T., Henrich, R., Kinkel, H., Meggers, H. (1999) Proxies for carbonate dissolution. In G. Fischer and G. Wefer (eds.): Proxies in paleoceanography: Examples from the South Atlantic, 255-284.

Mackensen, A., and Bickert, T. (1999) Stable carbon isotopes in benthic foraminifera: Proxies for deep and bottom water circulation and new production reconstructions. In G. Fischer and G. Wefer (eds.): Proxies in paleoceanography: Examples from the South Atlantic, 229-254.

Vidal, L., Schneider, R. R., Marchal, O., Bickert, T., Stocker, T. F., Wefer, G. (1999) Link between the North and the South Atlantic related to the Heinrich Events during the last glacial period. Climate Dynamics, 15: 909-919.

Pätzold, J., Bickert, T., Flemming, B., Grobe, H., Wefer, G. (1999) Holozänes Klima des Nordatlantiks rekonstruiert aus massiven Korallen von Bermuda. Natur und Museum 129: 165-177.

Bickert, T., Wefer, G. (1999) South Atlantic and benthic foraminifer d13C-deviations: Implications for reconstructing the Late Quaternary deep-water circulation. Deep-Sea Research, 46: 437-452.

Mulitza, S., Rühlemann, C., Bickert, T., Hale, W., Pätzold, J., Wefer, G. (1998) Late Quaternary nutrient gradients and carbonate accumulation in the western equatorial Atlantic. Earth and Planetary Letters, 155: 237-249.

Little, M.G., Schneider, R.R., Kroon, D., Price, N.B., Bickert, T., Wefer, G. (1997) Rapid paleoceanographic changes in the Benguela upwelling system for the last 160,000 years as indicated by abundances of planktonic foraminifera. Palaeogeography, Palaeoclimatology, Palaeoecology, 130: 135-162.

Bickert, T., Pätzold, J., Samtleben, C., Munnecke, A. (1997) Paleoenvironmental changes in the Silurian, indicated by stable isotopes in brachiopod shells from Gotland (Sweden). Geochimica et Cosmochimica Acta, 61: 2717-2730.

Bickert, T., Cordes, R., Wefer, G. (1997) Late Pliocene to middle Pleistocene (2.6 to 1.0 Ma) carbonate dissolution in the western equatorial Atlantic: Results of Leg 154, Ceara Rise. Proc. ODP, Sci. Res., 154: 229-237.

Bickert, T., Curry, W. B., Wefer, G. (1997) Late Pliocene to Holocene (2.6 to 0 Ma) western equatorial Atlantic deep-water circulation: Inferences from benthic stable isotopes. Proc. ODP, Sci. Res., 154: 239-254.

Henrich, R., Freiwald, A., Bickert, T., Schäfer, P. (1996) Evolution of an arctic open shelf carbonate platform, Spitsbergen Bank (Barents Sea). SEPM Spec. Publ. 56: 163-181.

Wefer, G., Berger, W. H., Bickert, T., Donner, B., Fischer, G., Kemle von Mücke, S., Meinecke, G., Müller, P. J., Mulitza, S., Niebler, H. S., Pätzold, J., Schmidt, H., Schneider, R. R., Segl, M. (1996) Late Quaternary surface water circulation of the South Atlantic: The stable isotope record and implications for heat transport and productivity. In W. H. Berger, G. Wefer, G. Siedler "The South Atlantic: Present and past circulation". Springer, p. 461-502

Bickert, T., and Wefer, G. (1996) Late Quaternary deep-water circulation in the South Atlantic: Reconstruction from carbonate dissolution and benthic stable isotopes. In W. H. Berger, G. Wefer, G. Siedler "The South Atlantic: Present and past circulation". Springer, p.599-620.

Berger, W. H., Bickert, T., Yasuda, M., Wefer, G. (1996) Reconstruction of atmospheric CO2 from the deep-sea record of Ontong Java Plateau: The Milankovitch Chron. Geologische Rundschau, 85: 466-495

Samtleben, C., Munnecke, A., Bickert, T., Pätzold, J. (1996) The Silurian of Gotland (Sweden): Facies interpretation based on stable isotopes in brachiopod shells. Geologische Rundschau, 85: 278-292.

1990 - 1995
Beiersdorf, H., Bickert, T., Cepek, P., Fenner, J., Petersen, N., Schönfeld, J., Weiss, W., Won, M. Z. (1995) High-resolution stratigraphy and the response of biota to late Cenozoic environmental changes in the central equatorial Pacific Ocean (Manihiki Plateau). Marine Geology, 125: 29-59.

Berger, W. H., Bickert, T., Wefer, G., Yasuda, M. (1995) Brunhes/Matuyama boundary: 790 k.y. date confined by orbital tuning of the oxygen isotope record of leg 130 sites, Ontong Java Plateau (western equatorial Pacific). Geophysical Research Letters 22: 1525-1528.

Berger, W.H., Bickert, T., Jansen, E., Yasuda, M., Wefer, G. (1994) Das Klima im Quartär: Rekonstruktion aus Tiefseesedimenten mit Hilfe der Milankovitch-Theorie. Die Geowissenschaften 12: 258-266.

Berger, W.H., Bickert, T., Jansen, E., Wefer, G., Yasuda, M. (1994) The central mystery of the Quaternary ice age: a view from the South Pacific. Oceanus, 36-4: 53-56.

Berger, W. H., Bickert, T., Takayama, T., Wefer, G., Yasuda, M. (1994) Quaternary time-scale for Ontong Java Plateau: Implications for variations of sedimentation rates. Geology 22: 463-467.

Mackensen, A., Hubberten, H. W., Bickert, T., Fischer, G., Fütterer, D.K. (1993) d13C in benthic foraminiferal tests of Fontbotia wuellerstorfi (SCHWAGER) relative to d13C of dissolved inorganic carbon in Southern Ocean deep water: implications for glacial ocean circulation models. Paleoceanography 8: 587-610.

Berger, W. H., Bickert, T., Schmidt, H., Wefer, G., Yasuda, M. (1993) Quaternary oxygen isotope record of pelagic foraminifers: Site 805, Ontong Java Plateau. Proc. ODP, Sci. Results 130: 363-379.

Bickert, T., Berger, W. H., Burke, S., Schmidt, H., and Wefer, G. (1993) Late Quaternary stable isotope record of benthic foraminifera at sites 805 and 806, Ontong Java Plateau. Proc. ODP, Sci. Results 130: 411-420.

Schmidt, H., Berger, W.H., Bickert, T., Wefer, G. (1993) Quaternary carbon isotope record of pelagic foraminifers: Site 806, Ontong Java Plateau. Proc. ODP, Sci. Results 130: 397-409.

Berger, W.H., Bickert, T., Schmidt, H., Wefer, G. (1993) Quaternary oxygen isotope record of pelagic foraminifers: Site 806, Ontong Java Plateau. Proc. ODP, Sci. Results 130: 381-395.

Bickert, T. (1992) Rekonstruktion der spätquartären Bodenwasserzirkulation im östlichen Südatlantik über stabile Isotope benthischer Foraminiferen. Ber. FB Geo Univ. Bremen, 27: 1-205.

Samtleben, C., and Bickert, T. (1990) Coccoliths in sediment traps from the Norwegian Sea. Marine Micropaleontology, 16: 39-64.