Dr. Karl-Heinz Baumann
Dr. Karl-Heinz Baumann
Phone: +49 421 218 - 65202
Fax: +49 421 218 - 65219
Email: baumann@uni-bremen.de

Department of Geosciences
University of Bremen
GEO Building, Room 2590
Klagenfurter Strasse
28359 Bremen

Scientific Interests and Current Research
General Scientific Interests
Basic research is focussed on various aspects of coccolithophores but also include various topics of paleoclimatic evolution, in particular:

• Coccolithophores (species distribution and occurrences) for paleoceanographic and paleoclimate reconstructions through Plio-/Pleistocene time intervals.
• Morphometric study of intraspecific variation in various species (f.e. Coccolithus pelagicus) in sediment trap and geological samples.
• Quantitative and qualitative studies on carbonate budget; the effect of species composition and evolution on coccolithophorid carbonate accumulation.
• Transport and sedimentation of coccolithophores (and other biogenic carbonate particles) onto the seafloor and their accumulation in sediments.

In additon, my research also covers sedimentological topics (quantitative analyses of silt particles), and carbonate dissolution studies. Main working areas are in the Atlantic (i.e., the South Atlantic, eastern North Atlantic, and the Norwegian-Greenland Sea), but also in the upwelling regions off Chile and Somalia.

Ship expeditions
• 2018 RV MARIA S. MERIAN 79, Las Palmas - Mindelo/Cape Verde, East Atlantic off Cape Blanc/NW Africa and Cape Verde
• 2018 RV SONNE 260, Buenos Aires - Montevideo, western South Atlantic off Argentinia
• 2013 RV POSEIDON 448, Messina - Messina (Sicily/Italy), Adriatic Sea and Ionian Sea
• 2012 RV POSEIDON 425, Las Palmas - Las Palmas, Cape Blanc, off NW Africa
• 2011 RV METEOR 84/4, Vigo - Vigo (Spain), off Galicia
• 2008 RV METEOR 75/2, Dar es Salaam - Dar es Salaam (Tanzania), western equatorial Indian Ocean
• 2008 RV POSEIDON 366-2, Las Palmas - Vigo (Spain), eastern NW Atlantic
• 2007 RV MARIA S. MERIAN 04/4b, Las Palmas - Las Palmas, Canary Islands and Cape Blanc, off NW Africa
• 2001 RV METEOR 49/4, Salvador da Bahia (Brazil) - Halifax (Nova Scotia), Central Atlantic and Carribbean
• 1999 RV METEOR 46/1, Las Palmas - Recife (Brazil), Central Atlantic
• 1996 JOIDES Resolution, ODP-Leg 162, Leith (Edinburgh) - Reykjavik, North Atlantic and Norwegian-Greenland Sea
• 1994 RV METEOR 29/3, 1994, Rio de Janeiro – Las Palmas, central equatorial Atlantic
• 1992 RV METEOR 21/3, Funchal (Madeira) – Reykjavik, North Atlantic
• 1990 FS POLARSTERN ARK VII, Bremerhaven - Tromsø (Norway), Norwegian-Greenland Sea
• 1988 FS METEOR 7/5, Akureyri (Iceland) – Hamburg, Norwegian-Greenland Sea
• 1986 RV METEOR 2/1, Hamburg - Trondheim (Norway), Norwegian-Greenland Sea

List of relevant Publications

• Cavaleiro, C., Voelker, A.H.L., Stoll, H., Baumann, K.-H., Kucera, M. (2019). Coccolithophore productivity at the western Iberian Margin during the middle Pleistocene (310 – 455 ka) – evidence from coccolith Sr/Ca data. Climate of the Past Discussions, https://doi.org/10.5194/cp-2019-131
• Pogge von Strandmann, P.A.E., Schmidt, D.N., Planavsky, NJ, Wei, G., Todd, C.L., Baumann, K.-H., 2019. Assessing bulk carbonates as archives for seawater Li isotope ratios, Chemical Geology, https://doi.org/10.1016/j.chemgeo.2019.119338.
Guerreiro, C.V., Baumann, K.-H., Brummer, G.-J. A., Korte, L. F., Sá, C., Stuut, J.-B. (2019). Transatlantic gradients in calcifying phytoplankton (coccolithophore) fluxes. Progress In Oceanography, 176:102-140. https://doi.org/10.1016/j.pocean.2019.102140
Saavedra-Pellitero, M., Baumann, K.-H., Fuertes, M. Á., Schulz, H., Marcon, Y., Vollmar, N. M., Flores, J.-A., Lamy, F., 2019. Calcification and distribution of extant coccolithophores across the Drake Passage during late austral summer 2016, Biogeosciences, https://doi.org/10.5194/bg-16-3679-2019.https://doi.org/10.5194/bg-2019-186.
• Ausín, B., Magill, C., Haghipour, N., Fernández, Á., Wacker, L., Hodell, D., Baumann, K.-H., Eglington, T.I., 2019. (In)coherent multiproxy signals in marine sediments: Implications for high-resolution paleoclimate reconstruction. Earth and Planetary Science Letters, 515: 38-46. https://doi.org/10.1016/j.epsl.2019.03.0013
• Saavedra-Pellitero, M., Baumann, K.-H., Gallagher, S.J., Sagawa, T. & Tada, R., 2019. Paleoceanographic evolution of the Japan Sea over the last 460 kyr – A coccolithophore perspective. Marine Micropaleontology, https://doi.org/10.1016/j.marmicro.2019.01.001
• Skampa, E., Triantaphyllou, M.V., Dimiza, M.D., Gogou, A., Malinverno, E., Stavrakakis, S., Panagiotopoulos, I.P., Parinos, C., Baumann, K.-H., 2019. Coupling plankton - sediment trap - surface sediment coccolithophore regime in the North Aegean Sea (NE Mediterranean). Marine Micropaleontology, https://doi.org/10.1016/j.marmicro.2019.03.001
• Hernández-Almeida, I., Ausín, B., Saavedra-Pellitero, M., Baumann, K.-H., Stoll, H.M., 2019. A dataset of modern and fossil distribution of coccolithophore species Florisphaera profunda in the world’s ocean. Data in Brief, 22: 826-829.
• Hernández-Almeida, I., Ausín, B., Saavedra-Pellitero, M., Baumann, K.-H., Stoll, H.M., 2019. Quantitative reconstruction of primary productivity in low latitudes during the last glacial maximum and the mid-to-late Holocene from a global Florisphaera profunda calibration dataset. Quaternary Science Reviews, 205, 166-181.
• Cavaleiro, C., Voelker, A.H.L., Stoll, H., Baumann, K.-H., Kulhanek, D. K., Naafs, B.D.A., Stein, R., Grützner, J., Ventura, C., Kucera, M. (2018). Insolation forcing of coccolithophore productivity in the North Atlantic during the Middle Pleistocene.
• Tangunan, D.N., Baumann, K.-H., Just, J., LeVay, L.J., Barker, S., Brentegani, L., de Vleeschouwer, D., Hall, I.R., Hemming, S., Norris, R., the Expedition 361 Shipboard Scientific Party (2018). The last 1 million years of the extinct Discoaster: Plio-Pleistocene environment and productivity at Site 1476 (Mozambique Channel).
• Triantaphyllou, M.V., Baumann, K.-H., Karatsolis, B.-T., Dimiza, M.D., Psarra, S., Skampa, E., Patoucheas, P., Vollmar, N.M., Koukousioura, O., Katsigera, A., Krasakopoulou, E., Nomikou, P. (2018). Coccolithophore community response along a natural CO2 gradient off Methana (SW Saronikos Gulf, Greece, NE Mediterranean).
Guerreiro, C.V., Baumann, K.-H., Brummer, G.-J. A., Fischer, G., Korte, L. F., Merkel, U., Sá, C., de Stigter, H., Stuut, J.-B. (2017). Coccolithophore fluxes in the open tropical North Atlantic: influence of the Amazon river and of Saharan dust deposition. Biogeosciences, 14, 4577–4599. https://doi.org/10.5194/bg-14-4577-2017
• Patil, S.M., Mohan, R., Shetye, S.S., Gazi, S., Baumann, K.-H., Jafar, S. (2017). Biogeographic distribution of extant Coccolithophores in the Indian sector of the Southern Ocean. Marine Micropaleontolgy, doi: 10.1016/j.marmicro.2017.08.002
• Saavedra-Pellitero, M., Baumann, K.-H., Lamy, F., Köhler, P. (2017). Coccolithophore variability across Marine Isotope Stage 11 in the Pacific sector of the Southern Ocean and its potential impact on the carbon cycle. Paleoceanography, 32, doi:10.1002/2017PA003156.
• Saavedra-Pellitero, M., Baumann, K.-H., Ullermann, J., Lamy, F. (2017). Marine Isotope Stage 11 in the Pacific sector of the Southern Ocean; a coccolithophore perspective. Quaternary Science Reviews, 158, 1-14. http://dx.doi.org/10.1016/j.quascirev.2016.12.020
• Tangunan, D., Baumann, K.-H., Pätzold, J., Henrich, R., Kucera, M., De Pol-Holz, R., Groeneveld, J. (2017). Insolation forcing of coccolithophore productivity in the western tropical Indian Ocean over the last two glacial-interglacial cycles. Paleoceanography, 32, doi:10.1002/2017PA003102
• Weiser, J., Baumann, K.-H., Hahn, A., Zabel, M. (2016). Late Holocene paleoceanographic changes off south-western Africa as inferred from coccolithophore assemblages. Journal of Nannoplankton Research, 36 (2): 161-171.
• Fischer, G., Karstensen, J., Romero, O., Baumann, K.-H., Donner, B., Hefter, J., Mollenhauer, G., Iversen, M., Fiedler, B., Monteiro, I., and Körtzinger, A. (2016). Bathypelagic particle flux signatures from a suboxic eddy in the oligotrophic tropical North Atlantic: production, sedimentation and preservation. Biogeosciences, 13, 3203–3223. doi:10.5194/bg-13-3203-2016
Baumann, K.-H., Saavedra-Pellitero, M., Böckel, B., Ott, C. (2016). Morphometry, biogeography and ecology of Calcidiscus and Umbilicosphaera in the South Atlantic. Revue de Micropaléontologie, 59 (3), 239-251, doi:10.1016/j.revmic.2016.03.001.
• Köbrich, M.I., Baumann, K.-H. & Fischer, G. (2016). Seasonal and inter-annual dynamics of coccolithophore fluxes from the upwelling region off Cape Blanc, Northwest Africa. Journal of Micropaleontology, doi:10.1144/jmpaleo2014-024.
• Stolz, K., Baumann, K.-H. & Mersmeier, H. (2015). Extant coccolithophores from the western equatorial Indian Ocean off Tanzania and coccolith distribution in surface sediments. Micropaleontology, 61 (6), 473-488.
• Saavedra-Pellitero, M. & Baumann, K.-H. (2015). Comparison of living and surface sediment coccolithophore assemblages in the Pacific sector of the Southern Ocean. Micropaleontology, 61 (6), 507-520.
• Rippert, N., Baumann, K.-H. & Pätzold, J. (2015). Thermocline fluctuations in the western tropical Indian Ocean Turing the past 35 ky. Journal of Quaternary Sciences, 30(3), 201 -210; DOI: 10.1002/jqs.2767.
• Kuhnert, H., Kuhlmann, H., Mohtadi, M., Meggers, H., Baumann, K.-H. & Pätzold, J. (2014). Holocene tropical western Indian Ocean sea surface temperaturas in covariation with climatic changes in the Indonesian region. Paleoceanography, 29 (5), 423-437; doi: 10.1002/2013PA002555.
• Saavedra-Pellitero, M., Baumann, K.-H., Flores, J.A. & Gersonde, R. (2014). Comparison of living and surface sediment coccolithophore assemblages in the Pacific sector of the Southern OceanBiogeographic distribution of living coccolithophores in the Pacific Sector of the Southern Ocean. Marine Micropaleontology, 109: 1-20; 10.1016/j.marmicro.2014.03.003.
• Horigome, M.T., Ziveri, P., Grelaud, M., Baumann, K.-H., Marino, G. & Mortyn, P.G. (2014). Environmental control on the Emiliania huxleyi calcite mass. Biogeosciences, 11, 2295-2308, doi: 10.5194/bg-11-2295-2014.
• Berger, C., Meier, K.J.S., Kinkel, H. & Baumann, K.-H. (2014). Changes in calcification of coccoliths under stable atmospheric CO2. Biogeosciences, 11, 929-944; doi: 10.5194/bg-11-929-2014.
• Saavedra-Pellitero, M., Baumann, K.-H., Hernández-Almeira, I., Flores, J.A. & Sierro, F.J. (2013). Modern sea surface productivity and temperature estimations off Chile as detected by coccolith accumulation rates. Paleogeography, Paleoclimatology, Paleoecology, 392, 534-545.
Baumann, K.-H. & Boeckel, B. (2013). Spatial distribution of living coccolithophores in the southwestern Gulf of Mexico. Journal of Micropaleontology, 32, 123-133; doi: 10.1144/jmpaleo2011-007.
• Preiss-Daimler, I., Baumann, K.-H. & Henrich, R. (2012). Carbonate Budget mass estimates for Neogene discoasters from the Equatorial Atlantic (Ceara Rise: ODP Site 927). Journal of Micropaleontology, 31 (2), 169-178.
• Bender, V., Hanebuth, T.J.J., Mena, A., Baumann, K.-H., Francés, G. & von Dobeneck, T. (2012). Control of sediment supply, palaeoceanography and morphology on late Quaternary sediment dynamics at the Galician continental slope. Geo-Marine Letters, 32(4), 313-335.
• Saavedra-Pellitero, M., Flores, J.A., Baumann, K.-H., Boeckel, B., Sierro, F.J. (2011). Comparison of different preparation and analysis techniques for quantitative coccolith studies focusing on biogeographic patterns of species. Micropaleontology, 57 (2), 139-161.
• Kohn, M., Steinke, S., Baumann, K.-H., Donner, B., Meggers, H. & Zonneveld, K.A.F. (2011). Stable oxygen isotopes of the calcareous dinoflagellate Thoracosphaera heimii as a proxy for mixed layer temperatures. Paleogeogr. Paleoclimatol. Paleoecol., 302 (3-4), 311-322.
• Stolz, K. & Baumann, K.-H. (2010): Changes in palaeoceanography and palaeoecology during Marine Isotope Stage (MIS) 5 in the eastern North Atlantic (ODP Site 980) deduced from calcareous nannoplankton observations. Palaeogeography, Palaeoclimatology, Palaeoecology, 292: 295–305; doi:10.1016/j.palaeo.2010.04.002.
• Saavedra-Pellitero, M., Flores, J.A., Baumann, K.-H. & Sierro, F.J. (2010). Coccolith distribution patterns in surface sediments of the Equatorial and Southeastern Pacific Ocean. Geobios, 43, 131-149.
• Flores, J.-A., Colmenero-Hidalgo, E., Mejía Molina, A.E., Baumann, K.-H., Henderiks, J., Larsson, K., Prabhu, C., Sierro, F.J. & Rodrigues, T. (2010). Distribution of large Emiliania huxleyi in the Central and Northeast Atlantic as a tracer of surface ocean dynamics during the last 25,000 years. Marine Micropaleontology, 76, 53-66; doi: 10.1016/j.marmicro.2010.05.001.
• Balestra, B., Ziveri, P., Baumann, K.-H., Troelstra, S. & Monechi, S. (2010). Surfac water dynamics in the Reykjanes ridge area during the Holocene as revealed by coccolith assemblages. Marine Micropaleontology, 76, 1-10; doi:10.1016/j.marmicro.2010.03.002.
• Fink, C., Baumann, K.-H., Groeneveld, J. & Steinke, S. (2009). Strontium/Calcium ratio, carbon and oxygen stable isotopes in coccolith carbonate from different grain-size fractions in South Atlantic surface sediments. Geobios, 43, 151-164; doi:10.1016/j.geobios.2009.11.001
• Köbrich, M.I. & Baumann, K.-H. (2008). Coccolithophore flux in a sediment trap off Cape Blanc (NW Africa). Journal of Nannoplankton Research, 30 (2), 83-96.
• Boeckel, B. & Baumann, K.-H. (2008). Vertical and lateral variations in coccolithophore community structure across the subtropical frontal zone in the South Atlantic Ocean. Marine Micropaleontology, 67, 255-273.
Baumann, K.-H., Böckel, B. & Cepek, M. (2008). Spatial distribution of living coccolithophores on an East-West transect in the subtropical South Atlantic. Journal of Nannoplankton Research, 30 (1), 9-21.
• Ziveri, P., de Bernardi, B., Baumann, K.-H., Stoll, H.M. & Mortyn, P.G. (2007). Sinking of coccolith carbonate and potential contribution to organic carbon ballasting in the deep ocean. Deep-Sea Research II, 54, 659-675.
• Zonneveld, K.A.F., Mackensen, A. & Baumann, K.-H. (2007). Stable oxygen isotopes of Thoracosphaera heimii (Dinophyceae) in relationship to temperature; a culture experiment. Mar. Micropaleontol., 64, 80-90.
• Langer, G., Geisen, M., Baumann, K.-H., Kläs, J., Riebesell, U., Thoms, S. & Young, J. R. (2006). Species specific responses of calcifying algae to changing seawater carbonate chemistry. Geochemistry, Geophysicy, Geosystems, 7, Q09006, doi:10.1029/2005GC001227.
• Böckel, B., Baumann, K.-H., Henrich, R. & Kinkel, H. (2006). Coccolith distribution patterns in South Atlantic and Southern Ocean surface sediments in relation to environmental gradients. Deep-Sea Research I, 53, 1073-1099.
• Krammer, R., Baumann, K.-H. & Henrich, R. (2006). Middle to late Miocene fluctuations in the incipient Benguela Upwelling System revealed by calcareous nannofossil assemblages (ODP Site 1085A). Palaeogeography, Palaeoclimatology, Palaeoecology, 230, 319–334.
• Parente, A., Cachão, M., Baumann, K.-H., de Abreu, L. & Ferreira, J. (2005). Morphometry of Coccolithus pelagicus s.l. (Coccolithophore, Haptophyta) from offshore Portugal, during the last 200 kyr. Micropaleontology, 50 (1), 107-120.
• Frenz, M., Baumann, K.-H., Böckel, B., Höppner, R & Henrich, R. (2005): Carbonates from the Mid-Atlantic Ridge: Quantification of foraminifer and coccolith carbonate in the South Atlantic surface sediments means of carbonate grain-size distributions. Journal of Sedimentary Research, 75 (3), 464-475.
Baumann, K.-H., Andruleit, H., Böckel, B., Geisen, M. & Kinkel, H. (2005). The significance of extant coccolithophores as indicators of ocean water masses, surface water temperature, and paleoproductivity: a review. Paläontologische Zeitschrift, 79/1, 93-112.
Baumann, K.-H. (2005). Importance of coccolith size measurements for carbonate estimations. Micropaleontology, 50 (1), 35-43.
• Ziveri, P., Baumann, K.-H., Bollmann, J. & Young, J. (2004). Present day coccolithophore biogeography in the Atlantic Ocean. In: Thierstein, H. R., Young, J. R. (Eds.), Coccolithophores - From Molecular Processes to Global Impact. Springer-Verlag, Heidelberg, 403-428.
• Vink, A., Baumann, K.-H., Böckel, B., Esper, O., Kinkel, H., Willems, H. & Zonneveld K.A.F. (2004). Coccolithophorid and dinoflagellate synecology in the South and Equatorial Atlantic: Improving the paleoecological significance of phytoplanktonic microfossils. In: Wefer, G., Mulitza, S., Ratmeyer, V., (Eds), The South Atlantic in the Late Quarternary – Reconstruction of Material Budgets and Current Systems. Springer-Verlag, Berlin, Heidelberg, 101-120.
• Spielhagen, R.F., Baumann, K.-H., Erlenkeuser, H., Nowazcyk, N.R., Nørgaard-Petersen, N., Vogt, C. & Weiel, D. (2004). Arctic Ocean deep-sea record of northern Eurasian ice sheet history. Quaternary Science Reviews, 23, 1455-1483. doi:10.1016/j.quascirev.2003.12.015.
• Quinn, P.S., Garcia Sáez, A., Baumann, K.-H., Steel, B.A., Sprengel, C. & Geisen, M. (2004). Coccolithophorid biodiversity: Evidence from the cosmopolitan species Calcidiscus leptoporus. In: Thierstein, H.R. & Young, J.R. (Eds.), Coccolithophores - From Molecular Processes to Global Impact. Springer-Verlag, Heidelberg, 299-326.
• Henrich, R., Baumann, K.-H., Gerhardt, S., Gröger, M., & A. Volbers (2004). Carbonate preservation in deep and intermediate water masses in the South Atlantic: evaluation and geological record (a review). In: Wefer, G., Mulitza, S., Ratmeyer, V. (Eds.), The South Atlantic in the Late Quaternary: reconstruction of material budgets and current systems. Springer Verlag, Berlin, Heidelberg, 645-670.
• Geisen, M., Young, J. R., Probert, I., Garcia Sáez, A., Baumann, K.-H., Bollmann, J., Cros, L., De Vargas, C., Medlin, L. K., Sprengel, C. (2004). Species level variation in coccolithophores. In: Thierstein, H.R. & Young, J.R. (Eds.), Coccolithophores - From Molecular Processes to Global Impact. Springer-Verlag, Heidelberg, 327-366.
• Boeckel, B. & Baumann, K.-H. (2004). Distribution of coccoliths in surface-sediments of the south-eastern South Atlantic Ocean: ecology, preservation and carbonate contribution. Marine Micropaleontology, 51, 301-320.
Baumann, K.-H. & Freitag, T. (2004). Pleistocene fluctuations in the Benguela Current system as revealed by coccolith assemblages. Marine Micropaleontology, 52, 195-215.
Baumann, K.-H., Böckel, B., Frenz, M. (2004). Coccolith contribution to South Atlantic carbonate sedimentation. In: Thierstein, H.R. & Young, J.R. (Eds.), Coccolithophores – From Molecular Processes to Global Impact. Springer-Verlag, Heidelberg, 367-402.
• Sprengel, C., Baumann, K.-H., Hendricks, J., Henrich, R. & Neuer, S. (2002). Modern coccolithophore and carbonate sedimentation along a productivity gradient in the Canary Islands region: Seasonal export production and surface accumulation rates. Deep-Sea Research II, 49, 3577-3598.
• Henrich, R., Baumann, K.-H., Huber, R. & Meggers, H. (2002). Carbonate preservation records of the past 3 Myr in the Norwegian-Greenland Sea and the northern North Atlantic: implications for the history of NADW production. Mar. Geol., 184, 17-39.
• Su, X., Baumann, K.-H. & Thiede, J. (2001). Calcareous nannofossils from Leg 168: Biochronology and diagenesis. In: Fisher, A., Davis, E.E. & Escutia, C. (Eds.), Proceedings ODP, Scientific Results, 168, 39-49, College Station TX (Ocean Drilling Program).
• Matthiessen, J., Baumann, K.-H., Schröder-Ritzrau, A., Hass, C., Andruleit, H., Baumann, A., Jensen, S., Kohly, A., Pflaumann, U., Samtleben, C., Schäfer, P. & Thiede, J. (2001). Distribution of calcareous, siliceous and organic-walled planktic microfossils in surface sediments of the Nordic Seas and their relation to surface-water masses. In: P. Schäfer, W. Ritzrau, M. Schlüter & J. Thiede (Eds.), The northern North Atlantic: A changing environment, 105-128, Springer-Verlag, Berlin.
• Hass, H.C., Andruleit, H., Baumann, A., Baumann, K.-H., Kohly, A., Jensen, S., Matthiessen, J., Samtleben, C., Schäfer, P., Schröder-Ritzrau, A. & Thiede, J. (2001). The potential of synoptic plankton analyses for paleoclimatic investigations: Five plankton groups from the Holocene Nordic Seas. In: P. Schäfer, W. Ritzrau, M. Schlüter & J. Thiede (Eds.), The northern North Atlantic: A changing environment, 291-318, Springer-Verlag, Berlin.
• Sprengel, C., Baumann, K.-H. & Neuer, S. (2000). Seasonal and interannual variation of coccolithophore fluxes and species composition in sediment traps north of Gran Canaria (29°N 15°W). Marine Micropaleontology, 39, 157-178.
• Kinkel, H., Baumann, K.-H. & Cepek, M. (2000). Coccolithophores in the equatorial Atlantic Ocean: Response to seasonal and Late Quaternary surface water variability. Marine Micropaleontology, 39, 87-112.
• Huber, R., Meggers, H., Baumann, K.-H., Raymo, M.E. & Henrich, R. (2000). Morphometric evolution of the planktonic foraminifer Neogloboquadrina pachyderma sin. (Ehrenberg) in the Norwegian-Greenland Sea during the last 1.3 Myrs. Implications for paleoceanographic reconstructions. Palaeogeography, Palaeoclimatology, Palaeoecology, 160, 193-212.
• Huber, R., Meggers, H., Baumann, K.-H. & Henrich, R. (2000). Recent and Pleistocene carbonate dissolution in sediments of the Norwegian-Greenland Sea. Marine Geology, 165, 123-136.
Baumann, K.-H. & Sprengel, C. (2000). Morphological variations of various coccolith species in a sediment trap north of the Canary Islands. Journal of Nannoplankton Research, 22 (3), 185-193.
Baumann, K.-H., Andruleit, H. & Samtleben, C. (2000). Coccolithophores in the Nordic Seas: Comparison of living communities with surface sediment assemblages. Deep-Sea Research II, 47, 1743-1772.
• Huber, R., Baumann, K.-H., Beyer, J., Brüning, J. & Hüneke, J. (1999). Counting experiments on different size fractions: Examples from Site 984. In: Raymo, M.E., Jansen, E., Blum, P. & Herbert, T.D. (Eds.), Proc. ODP, Sci. Results, 162, 191-194.
• Dittert, N., Baumann, K.-H., Bickert, T., Henrich, R., Huber, R., Kinkel, H. & Meggers, H. (1999). Carbonate dissolution: methods, quantification, and paleoceanographic application. In: Fischer, G. & Wefer, G. (Eds.), Use of proxies in paleoceanography: examples from the South Atlantic; Springer-Verlag, Berlin, Heidelberg; 255-284.
Baumann, K.-H., Cepek, M. & Kinkel, H. (1999). Coccolithophores as indicators of ocean water masses, surface water temperatures, and paleoproductivity - examples from the South Atlantic. In: Fischer, G. & Wefer, G. (Eds.), Use of proxies in paleoceanography: examples from the South Atlantic; Springer-Verlag, Berlin, Heidelberg; 117-144.
Baumann, K.-H., Andruleit, H. & Samtleben, C. (1999). Coccolithophores in the Nordic Seas: Comparison of living communities with surface sediment assemblages. Deep-Sea Research II, 47, 1743-1772.
Baumann, K.-H. & Huber, R. (1999). Sea-surface gradients between the North Atlantic and the Norwegian Sea during the last 3.1 M.y.: Comparison of Sites 982 and 985. In: Raymo, M.E., Jansen, E., Blum, P. & Herbert, T.D. (Eds.), Proceedings ODP, Scientific Results, 162, 179-190.
• Thiede, J., Winkler, A., Wolf-Welling, T., Eldholm, O., Myhre, A., Baumann, K.-H., Henrich, R. & Stein, R. (1998). Late Cenozoic history of the polar North Atlatic: Results from Ocean Drilling. Quat. Sci. Rev., 17, 185-208.
• Lackschewitz, K.S., Baumann, K.-H., Gehrke, B., Wallrabe-Adams, H.-J., Thiede, J., Bonani, G., Endler, R., Erlenkeuser, H. & Heinemeier, J. (1998). Late Quaternary northern ice sheets fluctuations 10,000-70,000 yrs ago as inferred from deposits on the Reykjanes Ridge, southeast of Greenland. Quaternary Research, 49, 171-182.
• Hebbeln, D., Henrich, R. & Baumann, K.-H. (1998). Paleoceanography of the last Interglacial/glacial cycle in the polar North Atlantic. Quat. Sci. Rev., 17, 125-153.
• Bollmann, J., Baumann, K.-H. & Thierstein, H.R. (1998). Global dominance of Gephyrocapsa coccoliths in the late Pleistocene: Selective dissolution, evolution, or global environmental change? Paleoceanography, 13 (5), 517-529.
Baumann, K.-H., Andruleit, H. & Su, X. (1998). Comparison of different preparation techniques for quantitative nannofossil studies. J. Nannopl. Res., 20 (2), 75-80.
• Andruleit, H. & Baumann, K.-H. (1998). History of the last deglaciation and Holocene in the Nordic seas as revealed by coccolithophore assemblages. Marine Micropaleontology, 35, 179-201.
• Shokati, I., Baumann, K.-H., Cepek, M. & Henrich, R. (1997). Zur Sedimentation von Coccolithophoriden und ihrer Akkumulation in spätpleistozän-holozänen Sedimenten des östlichen Südatlantiks. Zbl. Geol. Paläont. Teil I, 7-9, 859-876.
Baumann, K.-H., Andruleit, H., Schröder-Ritzrau, A. & Samtleben, C. (1997). Spatial and temporal dynamics of coccolithophore communities during non-production phases in the Norwegian-Greenland Sea. In: Hass, H.C. & Kaminski, M.A. (Eds.), Contribution to the Micropaleontology and Paleoceanography of the northern North Atlantic. Grzybowski Foundation Special Publications, 5, 227-243.
Baumann, K.-H. & Meggers, H. (1996). Palaeoceanographic changes in the Labrador Sea during the past 3.0 My: Evidence from calcareous plankton records. In: Moguilevsky, A. & Whatley, R. (Eds.), Microfossils and Oceanic Environments, 131-153; The University of Wales, Aberystwyth Press.
• Samtleben, C., Schäfer, P., Andruleit, H., Baumann, A., Baumann, K.-H., Kohly, A., Matthiessen, J. & Schröder-Ritzrau, A. (1995). Plankton in the Norwegian-Greenland Sea: from living communities to sediment assemblages - an actualistic approach. Geologische Rundschau, 84, 108-136.
Baumann, K.-H., Lackschewitz, K.S., Mangerud, J., Spielhagen, R.F., Wolf, T.C.W., Henrich, R. & Kassens, H. (1995). Reflection of Fennoscandian Ice Sheet fluctuations in the Norwegian Sea sediments during the last 150,000 years. Quaternary Research, 43, 185-197.
Baumann, K.-H. (1995). Morphometry of Quaternary Coccolithus pelagicus coccoliths from northern North Atlantic and its paleoceanographical consequences. In: Flores, J.A. & Sierro, F.J. (Eds.); 5th INA Conference in Salamanca Proceedings, 11-21.
• Henrich, R. & Baumann, K.-H. (1994). Evolution of the Norwegian Current and the Scandinavian Ice Sheets during the past 2.6 Mys: evidence from ODP Leg 104 biogenic carbonate and terrigenous records. Palaeogeography, Palaeoclimatology, Palaeoecology, 108, 75-94.
Baumann, K.-H. & Matthießen, J. (1992). Variations in surface water mass conditions in the Norwegian Sea: evidence from Holocene coccolith and dinoflagellate cyst communities. Marine Micropaleontology, 20, 129-146.






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University of Bremen Research Group Sedimentology – Palaeoceanography
Faculty of Geosciences | FB5