Items where Author is "Schönfeld, Joachim (Schonfeld, Jens, Schoenfeld, Jens)"

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Number of items: 186.

Articles in a Scientific Journal - peer-reviewed

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Jentzen, A., Nürnberg, D. , Hathorne, E. C. and Schönfeld, J. (2018) Mg / Ca and δ18O in living planktic foraminifers from the Caribbean, Gulf of Mexico and Florida Straits. Open Access Biogeosciences (BG), 15 (23). pp. 7077-7095. DOI 10.5194/bg-15-7077-2018.

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Bertlich, J., Nürnberg, D. , Hathorne, E. C. , de Nooijer, L. J., Mezger, E. M., Kienast, M., Nordhausen, S., Reichart, G. J., Schönfeld, J. and Bijma, J. (2018) Salinity control on Na incorporation into calcite tests of the planktonic foraminifera Trilobatus sacculifer – Evidence from culture experiments and surface sediments . Open Access Biogeosciences (BG), 15 (20). pp. 5991-6018. DOI 10.5194/bg-15-5991-2018.

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Woehle, C., Roy, A. S., Glock, N., Wein, T., Weissenbach, J., Rosenstiel, P., Hiebenthal, C. , Michels, J., Schönfeld, J. and Dagan, T. (2018) A Novel Eukaryotic Denitrification Pathway in Foraminifera. Current Biology, 28 (16). 2536-2543.e5. DOI 10.1016/j.cub.2018.06.027.

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Schönfeld, J. (2018) Monitoring benthic foraminiferal dynamics at Bottsand coastal lagoon (western Baltic Sea). Open Access Journal of Micropalaeontology, 37 (1). pp. 383-393. DOI 10.5194/jm-37-383-2018.

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Glock, N., Erdem, Z., Wallmann, K. , Somes, C. J. , Liebetrau, V., Schönfeld, J., Gorb, S. and Eisenhauer, A. (2018) Coupling of oceanic carbon and nitrogen facilitates spatially resolved quantitative reconstruction of nitrate inventories. Open Access Nature Communications, 9 (Article number 1217). DOI 10.1038/s41467-018-03647-5.

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Lübbers, J. and Schönfeld, J. (2018) Recent saltmarsh foraminiferal assemblages from Iceland. Estuarine, Coastal and Shelf Science, 200 . pp. 380-394. DOI 10.1016/j.ecss.2017.11.019.

Bahr, A., Hoffmann, J., Schönfeld, J., Schmidt, M. W., Nürnberg, D. , Batenburg, S. J. and Voigt, S. (2018) Low-latitude expressions of high-latitude forcing during Heinrich Stadial 1 and the Younger Dryas in northern South America. Global and Planetary Change, 160 . pp. 1-9. DOI 10.1016/j.gloplacha.2017.11.008.

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Hasenfratz, A. P., Schiebel, R., Thornalley, D. J. R., Schönfeld, J., Jaccard, S. L., Martínez-García, A., Holbourn, A., Jennings, A. E., Kuhnt, W., Lear, C. H., Marchitto, T. M., Quillmann, U., Rosenthal, Y., Yu, J. and Haug, G. H. (2017) Mg/Ca-temperature calibration for the benthic foraminifera Melonis barleeanum and Melonis pompilioides. Geochimica et Cosmochimica Acta, 217 . pp. 365-383. DOI 10.1016/j.gca.2017.08.038.

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Erdem, Z. and Schönfeld, J. (2017) Pleistocene to Holocene benthic foraminiferal assemblages from the Peruvian continental margin. Open Access Palaeontologia Electronica, 20 (2, Article Nr. 35A).

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Kucera, M., Silye, L., Weiner, A. K. M., Darling, K., Lübben, B., Holzmann, M., Pawlowski, J., Schönfeld, J. and Morard, R. (2017) Caught in the act: Anatomy of an ongoing benthic-planktonic transition in a marine protist. Journal of Plankton Research, 39 (3). pp. 436-449. DOI 10.1093/plankt/fbx018.

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van der Kaars, S., Miller, G., Turney, C., Cook, E. J., Nürnberg, D. , Schönfeld, J., Kershaw, A. P. and Lehman, S. (2017) Humans rather than climate the primary cause of Pleistocene megafaunal extinction in Australia. Open Access Nature Communications, 8 (14142). DOI 10.1038/ncomms14142.

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Erdem, Z., Schönfeld, J., Glock, N., Dengler, M. , Mosch, T., Sommer, S., Elger, J. and Eisenhauer, A. (2016) Peruvian sediments as recorders of an evolving hiatus for the last 22 thousand years. Quaternary Science Reviews, 137 . pp. 1-14. DOI 10.1016/j.quascirev.2016.01.029.

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Alve, E., Korsun, S., Schönfeld, J., Dijkstra, N., Golikova, E., Hess, S., Husum, K. and Panieri, G. (2016) Foram-AMBI: A sensitivity index based on benthic foraminiferal faunas from North-East Atlantic and Arctic fjords, continental shelves and slopes. Marine Micropaleontology, 122 . pp. 1-12. DOI 10.1016/j.marmicro.2015.11.001.

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Schiebel, R., Schönfeld, J. and Struck, U. (2016) Memorial to Alexander Volker Altenbach (1953–2015). Journal of Foraminiferal Research, 46 (1). pp. 4-6. DOI 10.2113/gsjfr.46.1.4.

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Mendes, I., Lobo, F. J., Fernández-Salas, L. M., López-González, N., Bárcenas, P., Schönfeld, J. and Ferreira, O. (2015) Multi-proxy evidence of rainfall variability recorded in subaqueous deltaic deposits off the Adra River, southeast Iberian Peninsula. Estuarine, Coastal and Shelf Science, 167 . pp. 300-312. DOI 10.1016/j.ecss.2015.08.005.

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Wilfert, P., Krause, S., Liebetrau, V., Schönfeld, J., Haeckel, M. , Linke, P. and Treude, T. (2015) Response of anaerobic methanotrophs and benthic foraminifera on 20 years of methane emission from a gas blowout in the North Sea. Marine and Petroleum Geology, 68 . pp. 731-742. DOI 10.1016/j.marpetgeo.2015.07.012.

Dorst, S., Schönfeld, J. and Walter, L. (2015) Recent benthic foraminiferal assemblages from the Celtic Sea (South Western Approaches, NE Atlantic). Paläontologische Zeitschrift, 89 (3). pp. 287-302. DOI 10.1007/s12542-014-0240-6.

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Dorst, S. and Schönfeld, J. (2015) Taxonomic notes on recent benthic foraminiferal species of the family Trochamminidae from the Celtic Sea. Journal of Foraminiferal Research, 45 (2). pp. 167-189. DOI 10.2113/gsjfr.45.2.167 .

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Schönfeld, J., Kuhnt, W., Erdem, Z., Flögel, S., Glock, N., Aquit, M., Frank, M. and Holbourn, A. (2015) Records of past mid-depth ventilation: Cretaceous ocean anoxic event 2 vs. Recent oxygen minimum zones. Open Access Biogeosciences (BG), 12 (4). pp. 1169-1189. DOI 10.5194/bg-12-1169-2015.

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Haynert, K., Schönfeld, J., Schiebel, R., Wilson, B. and Thomsen, J. (2014) Response of benthic foraminifera to ocean acidification in their natural sediment environment: a long-term culturing experiment. Open Access Biogeosciences (BG), 11 . pp. 1581-1597. DOI 10.5194/bg-11-1581-2014.

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Hoffmann, J., Bahr, A., Voigt, S., Schönfeld, J., Nürnberg, D. and Rethemeyer, J. (2014) Disentangling abrupt deglacial hydrological changes in northern South America: Insolation versus oceanic forcing. Geology, 42 (7). pp. 579-582. DOI 10.1130/G35562.1.

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Bahr, A., Schönfeld, J., Hoffmann, J., Voigt, S., Aurahs, R., Kucera, M., Flögel, S., Jentzen, A. and Gerdes, A. (2013) Comparison of Ba/Ca and as freshwater proxies: A multi-species core-top study on planktonic foraminifera from the vicinity of the Orinoco River mouth. Earth and Planetary Science Letters, 383 . pp. 45-57. DOI 10.1016/j.epsl.2013.09.036.

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Mendes, I., Dias, J. A., Schönfeld, J., Ferreira, Ó., Rosa, F. and Lobo, F. J. (2013) Living, dead and fossil benthic foraminifera on a river dominated shelf (northern Gulf of Cadiz) and their use for paleoenvironmental reconstruction. Continental Shelf Research, 68 . pp. 91-111. DOI 10.1016/j.csr.2013.08.013.

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Glock, N., Schönfeld, J., Eisenhauer, A. , Hensen, C., Mallon, J. and Sommer, S. (2013) The role of benthic foraminifera in the benthic nitrogen cycle of the Peruvian oxygen minimum zone. Open Access Biogeosciences (BG), 10 . pp. 4767-4783. DOI 10.5194/bgd-9-17775-2012.

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Haffert, L., Haeckel, M. , Liebetrau, V., Berndt, C. , Hensen, C., Nuzzo, M., Reitz, A., Scholz, F., Schönfeld, J., Perez-Garcia, C. and Weise, S. M. (2013) Fluid evolution and authigenic mineral paragenesis related to salt diapirism - the Mercator mud volcano in the Gulf of Cadiz. Geochimica et Cosmochimica Acta, 106 . pp. 261-286. DOI 10.1016/j.gca.2012.12.016.

Dorst, S. and Schönfeld, J. (2013) Diversity of benthic foraminifera of the shelf and slope of the NE-Atlantic: analysis of datasets. Journal of Foraminiferal Research, 43 . pp. 238-254. DOI 10.2113/gsjfr.43.3.238.

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Joseph, N., López Correa, M., Schönfeld, J., Rüggeberg, A. and Freiwald, A. (2013) Sub-arctic Holocene climatic and oceanographic variability in Stjernsund, northern Norway: evidence from benthic foraminifera and stable isotopes. Boreas, 42 (3). pp. 511-531. DOI 10.1111/j.1502-3885.2012.00303.x.

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Schönfeld, J., Golikova, E., Korsun, S. and Spezzaferri, S. (2013) The Helgoland Experiment - assessing the influence of methodologies on Recent benthic foraminiferal assemblage composition. Open Access Journal of Micropalaeontology, 32 (2). pp. 161-182. DOI 10.1144/jmpaleo2012-022.

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Haynert, K., Schönfeld, J., Polovodova-Asteman, I. and Thomsen, J. (2012) The benthic foraminiferal community in a naturally CO2-rich coastal habitat in the southwestern Baltic Sea. Open Access Biogeosciences (BG), 9 . pp. 4421-4440. DOI 10.5194/bg-9-4421-2012.

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Mendes, I., Dias, J. A., Schönfeld, J. and Ferreira, O. (2012) Distribution of living benthic foraminifera on the northern Gulf of Cadiz continental shelf. Journal of Foraminiferal Research, 42 (1). pp. 18-38. DOI 10.2113/gsjfr.42.1.18.

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Mendes, I., Dias, J., Schönfeld, J., Ferreira, O., Rosa, F., Gonzalez, R. and Lobo, F. (2012) Natural and human-induced Holocene paleoenvironmental changes on the Guadiana shelf (northern Gulf of Cadiz). Open Access The Holocene, 22 (9). pp. 1011-1024. DOI 10.1177/0959683612437867.

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Schönfeld, J. (2012) History and development of methods in Recent benthic foraminiferal studies. Open Access Journal of Micropalaeontology, 31 (1). pp. 53-72. DOI 10.1144/0262-821X11-008.

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Schönfeld, J., Alve, E., Geslin, E., Jorissen, F., Korsun, S. and Spezzaferri, S. and FOBIMO (2012) The FOBIMO (FOraminiferal BIo-MOnitoring) initiative—Towards a standardised protocol for soft-bottom benthic foraminiferal monitoring studies. Marine Micropaleontology, 94/95 . pp. 1-13. DOI 10.1016/j.marmicro.2012.06.001.

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Bahr, A., Nürnberg, D. , Schönfeld, J. and Garbe-Schönberg, D. (2011) Hydrological variability in Florida Straits during Marine Isotope Stage 5 cold events. Open Access Paleoceanography, 26 (2). PA2214. DOI 10.1029/2010PA002015.

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Glock, N., Eisenhauer, A. , Milker, Y., Liebetrau, V., Schönfeld, J., Mallon, J., Sommer, S. and Hensen, C. (2011) Environmental influences on the pore density of Bolivina spissa (Cushman). Journal of Foraminiferal Research, 41 (1). pp. 22-32. DOI 10.2113/gsjfr.41.1.22.

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Haynert, K., Schönfeld, J., Riebesell, U. and Polovodova, I. (2011) Biometry and dissolution features of the benthic foraminiferal species Ammonia aomoriensis at high pCO2. Open Access Marine Ecology Progress Series, 432 . pp. 53-67. DOI 10.3354/meps09138.

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Schweizer, M., Polovodova, I., Nikulina, A. and Schönfeld, J. (2011) Molecular identification of Ammonia and Elphidium species (Foraminifera, Rotaliida) from the Kiel Fjord (SW Baltic Sea) with rDNA sequences. Open Access Helgoland Marine Research, 65 . pp. 1-10. DOI 10.1007/s10152-010-0194-3.

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Schönfeld, J., Dullo, W. C. , Pfannkuche, O., Freiwald, A., Rüggeberg, A., Schmidt, S. and Weston, J. (2011) Recent benthic foraminiferal assemblages from cold-water coral mounds in the Porcupine Seabight. Facies, 57 (2). pp. 187-213. DOI 10.1007/s10347-010-0234-0.

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Stumpf, R., Frank, M. , Schönfeld, J. and Haley, B. A. (2011) Climatically driven changes in sediment supply on the SW Iberian shelf since the Last Glacial Maximum. Earth and Planetary Science Letters, 312 (1-2). pp. 80-90. DOI 10.1016/j.epsl.2011.10.002.

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Harbers, A., Schönfeld, J., Rüggeberg, A. and Pfannkuche, O. (2010) Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight. Micropaleontology, 56 (3-4). pp. 259-274.

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Hübscher, C., Dullo, W. C. , Flögel, S., Titschack, J. and Schönfeld, J. (2010) Contourite drift evolution and related coral growth in the eastern Gulf of Mexico and its gateways. International Journal of Earth Sciences, 99, SI . S191-S206. DOI 10.1007/s00531-010-0558-6.

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Mendes, I., Rosa, F., Dias, J. A., Schönfeld, J., Ferreira, Ó. and Pinheiro, J. (2010) Inner shelf paleoenvironmental evolution as a function of land-ocean interactions in the vicinity of the Guadiana River, SW Iberia. Quaternary International, 221 (1/2). pp. 58-67. DOI 10.1016/j.quaint.2009.10.037.

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Rogersen, M., Colmenero-Hidalgo, E., Levine, R. C., Rohling, E. J., Voelker, A. H. L., Bigg, G. R., Schönfeld, J., Cacho, I., Sierro, F. J., Löwemark, L., Reguera, M. I., De Abreu, L. and Garrick, K. (2010) Enhanced Mediterranean-Atlantic exchange during Atlantic freshening phases. Open Access Geochemistry, Geophysics, Geosystems, 11 (8). Q08013. DOI 10.1029/2009GC002931.

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Stumpf, R., Frank, M. , Schönfeld, J. and Haley, B. A. (2010) Late Quaternary variability of Mediterranean Outflow Water from radiogenic Nd and Pb isotopes. Quaternary Science Reviews, 29 (19/20). pp. 2462-2472. DOI 10.1016/j.quascirev.2010.06.021.

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Voigt, S., Friedrich, O., Norris, R. D. and Schönfeld, J. (2010) Campanian – Maastrichtian carbon isotope stratigraphy: shelf-ocean correlation between the European shelf sea and the tropical Pacific Ocean. Newsletters on Stratigraphy, 44 (1). pp. 57-72. DOI 10.1127/0078-0421/2010/0004.

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Altenbach, A. V., Schiebel, R., Schönfeld, J. and Wefer, G. (2009) Memorial to Gerhard Friedrich Lutze (1932-2009). Journal of Foraminiferal Research, 39 . pp. 361-363. DOI 10.2113/gsjfr.39.4.361.

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Eynaud, F., De Abreu, L., Voelker, A., Schönfeld, J., Salgueiro, E., Turon, J. L., Penaud, A., Toucanne, S., Naughton, F., Sánchez Goni, M. F., Malaizé, B. and Cacho, I. (2009) Position of the Polar Front along the western Iberian margin during key cold episodes of the last 45 ka. Open Access Geochemistry, Geophysics, Geosystems, 10 (Q07U05). DOI 10.1029/2009GC002398.

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Polovodova, I., Nikulina, A., Schönfeld, J. and Dullo, W. C. (2009) Recent benthic foraminifera in Flensburg Fjord (Western Baltic Sea). Open Access Journal of Micropalaeontology, 28 . pp. 131-142. DOI 10.1144/jm.28.2.131.

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Voelker, A. H. L., de Abreu, L., Schönfeld, J., Erlenkeuser, H. and Abrantes, F. (2009) Hydrographic conditions along the western Iberian margin during marine isotope stage 2. Open Access Geochemistry, Geophysics, Geosystems, 10 (12). Q12U08. DOI 10.1029/2009GC002605.

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Gonzalez-Mora, B., Sierro, F. J. and Schönfeld, J. (2008) Temperature and stable isotope variationsin different water masses from the Alboran Sea (western Mediterranean) between 250 150 ka. Open Access Geochemistry, Geophysics, Geosystems, 9 (Q10016). DOI 10.1029/2007GC001906.

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Nikulina, A., Polovodova, I. and Schönfeld, J. (2008) Foraminiferal response to environmental changes in Kiel Fjord, SW Baltic Sea. Open Access eEarth, 3 (1). pp. 37-49. DOI 10.5194/ee-3-37-2008.

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Nikulina, A., Polovodova, I. and Schönfeld, J. (2008) Environmental response of living benthic foraminifera in Kiel Fjord, SW Baltic Sea. Open Access eEarth, 3 . pp. 37-49. DOI 10.5194/ee-3-37-2008.

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Polovodova, I. and Schönfeld, J. (2008) Foraminiferal test abnormalities in the western Baltic Sea. Journal of Foraminiferal Research, 38 (4). pp. 318-336. DOI doi::10.2113/gsjfr.38.4.318.

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Regenberg, M., Nürnberg, D. , Schönfeld, J. and Reichart, G. J. (2007) Early diagenetic overprint in Caribbean sediment cores and its effect on the geochemical composition of planktonic foraminifera. Open Access Biogeosciences (BG), 4 . pp. 957-973. DOI 10.5194/bg-4-957-2007.

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Schönfeld, J. and Numberger, L. (2007) Seasonal dynamics and decadal changes of benthic foraminiferal assemblages in the western Baltic Sea (NW Europe). Open Access Journal of Micropalaeontology, 26 . pp. 47-60. DOI 10.1144/jm.26.1.47.

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Schönfeld, J. and Numberger, L. (2007) The benthic foraminiferal response to the 2004 spring bloom in the western Baltic Sea. Marine Micropaleontology, 65 . pp. 78-95. DOI 10.1016/j.marmicro.2007.06.003.

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Toucanne, S., Mulder, T., Schönfeld, J., Hanquiez, V., Gonthier, E., Duprat, J., Cremer, M. and Zaragosi, S. (2007) Contourites of the Gulf of Cadiz: a high-resolution record of the paleocirculation of the Mediterranean outflow water during the last 50,000 years. Palaeogeography Palaeoclimatology Palaeoecology, 246 (2/4). pp. 354-366. DOI 10.1016/j.palaeo.2006.10.007.

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Völker, A. H. L., Lebreiro, S. M., Schönfeld, J., Cacho, I., Erlenkeuser, H. and Abrantes, F. (2006) Mediterranean Outflow Strengthens during Northern Hemisphere Coolings: A salt source for the glacial Atlantic?. Earth and Planetary Science Letters, 245 (1-2). pp. 39-55.

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Gregory, F. J., Armstrong, H. A., Boomer, I., Gersonde, R., Harding, I., Herrle, J. O., Lazarus, D., Schmidt, D. N., Schönfeld, J. and Young, J. R. (2006) Celebrating 25 years of advances in micropalaeontology : a review. Open Access Journal of Micropalaeontology, 25 . pp. 97-112. DOI 10.1144/jm.25.2.97 .

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Llave, E., Schönfeld, J., Hernández-Molina, F. J., Mulder, T., Somoza, L., Díaz del Río, V. and Sánchez-Almazo, I. (2006) High-resolution stratigraphy of the Mediterranean outflow contourite system in the Gulf o Cadiz during the Late Pleistocene: the impact of Henrich events. Marine Geology, 227 . pp. 241-262. DOI 10.1016/j.margeo.2005.11.015.

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Schönfeld, J. and Altenbach, A. V. (2005) Late Glacial to Recent distribution pattern of deep-water Uvigerina species in the northeastern Atlantic. Marine Micropaleontology, 57 (1-2). pp. 1-24. DOI 10.1016/j.marmicro.2005.05.004.

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Colmenero-Hidalgo, E., Flores, J. A., Sierro, F. J., Bárcena, M., Löwemark, L., Schönfeld, J. and Grimalt, J. (2004) Ocean surface water response to short-term climate changes revealed by coccolithophores from the Gulf of Cadiz (NE Atlantic) and Alboran Sea (W Mediterranean). Palaeogeography Palaeoclimatology Palaeoecology, 205 . pp. 317-336. DOI 10.1016/j.palaeo.2003.12.014.

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Löwemark, L., Schönfeld, J., Werner, F. and Schäfer, P. (2004) Trace fossils as a paleoceanographic tool: evidence from Late Quaternary sediments of the southwestern Iberian margin. Marine Geology, 204 . pp. 27-41. DOI 10.1016/S0025-3227(03)00351-7.

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Malone, M., Martin, J., Schönfeld, J., Ninnemann, U., Nürnberg, D. and White, T. (2004) The oxygen isotopic composition and temperature of southern ocean bottom waters during the Last Glacial Maximum. Earth and Planetary Science Letters, 222 (1). pp. 275-283. DOI 10.1016/j.epsl.2004.02.027.

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Altenbach, A., Lutze, G. F., Schiebel, R. and Schönfeld, J. (2003) Impact of interrelated and interdependent ecological controls on benthic foraminifera: an example from the Gulf of Guinea. Palaeogeography Palaeoclimatology Palaeoecology, 197 (3-4). pp. 213-238. DOI 10.1016/S0031-0182(03)00463-2.

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Schönfeld, J., Zahn, R. and Abreu, L. d. (2003) Surface and deep water response to rapid climate changes at the Western Iberian Margin. Global and Planetary Change, 36 . pp. 237-264. DOI 10.1016/S0921-8181(02)00197-2.

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de Abreu, L., Shackleton, N. J., Schönfeld, J., Hall, M. and Chapman, M. (2003) Millennial-scale oceanic climate variability off the Western Iberian margin during the last two glacial periods. Marine Geology, 196 . pp. 1-20. DOI 10.1016/S0025-3227(03)00046-X.

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Schönfeld, J. (2002) A new benthic foraminiferal proxy for near-bottom current velocities in the Gulf of Cadiz, northeastern Atlantic Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 49 (10). pp. 1853-1875.

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Zahn, R., Schönfeld, J., Kudrass, H. R., Park, M. H., Erlenkeuser, H. and Grootes, P. (1997) Thermohaline instability in the North Atlantic during meltwater events: Stable isotope and ice-rafted detritus records from Core SO75-26KL, Portuguese Margin. Open Access Paleoceanography, 12 (5). pp. 696-710. DOI 10.1029/97PA00581.

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Beiersdorf, H., Bickert, T., Cepek, P., Fenner, J., Petersen, N., Schönfeld, J., Weiss, W. and 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). Open Access Marine Geology, 125 (1-2). pp. 29-59. DOI 10.1016/0025-3227(95)00021-P.

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Schönfeld, J. and Kudrass, H. R. (1993) Hemipelagic Sediment Accumulation Rates in the South China Sea Related to Late Quaternary Sea-Level Changes. Open Access Quaternary Research, 40 (3). pp. 368-379. DOI 10.1006/qres.1993.1090.

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Schönfeld, J. and Kudrass, H. R. (1991) Hochfrequente Turbiditsedimentation in der Sulu-See (Philippinen). Zeitschrift der Deutschen Geologischen Gesellschaft, 142 . pp. 179-197.

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Schönfeld, J. and von Mücke, T. (1991) Zur Foraminiferen-Stratigraphie der Schreibkreide von Helgoland. Geologisches Jahrbuch: Reihe A, 120 . pp. 117-126.

Articles in a Scientific Journal - without review

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Erdem, Z. , Schönfeld, J., Rathburn, A. E., Perez, M. E., Cardich, J. and Glock, N. (2019) Bottom-water deoxygenation at the Peruvian Margin during the last deglaciation recorded by benthic foraminifera. Open Access Biogeosciences Discussions . DOI 10.5194/bg-2019-112.

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Schönfeld, J. (2018) Benthic foraminiferal monitoring revealed environmental triggers of faunal changes . Open Access Newsletter of Micropalaeontology, 98 . pp. 39-41.

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Horna, F., Krentz, O., Buske, S., Schönfeld, J. and Sonnabend, L. (2011) Die Mergel von Börnersdorf (Osterzgebirge) - Stratigraphie, Tektonik und Geophysik eines verdeckten Oberkreiderelikte. Open Access Freiberger Forschungshefte: C, Geowissenschaften, 540 . pp. 65-78.

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Mulder, L. P., Lecroart, T. P., Voisset, M., Schönfeld, J., Le Drezen, E., Gonthier, E., Hanquiez, V., Zahn, R., Faugeres, J. C. and Hernandez-Molina, F. J. and CADISAR scientific team, IMAGES V-GINNA scientific team (2002) Studying Past Deep-ocean Circulation and the Paleoclimate Record in the Gulf of Cadiz. Open Access Eos, Transactions American Geophysical Union, 83 (43). pp. 481-488. DOI 10.1029/2002EO000337.

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Schönfeld, J., Schmid, F. and Schulz, M. G. (1996) Biostratigraphical long-distance correlation of the Lower Maastrichtian between Boral and Tethyan oceanic realms: NW Germany, E Atlantic and Bavaria. Mitteilungen aus dem Geologisch-Paläontologischen Institut der Universität Hamburg, 77 . pp. 483-487.

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Schönfeld, J., Schulz, M. G., Burnett, J., Gale, A., Hansen, H. J., Kennedy, W. J., Rasmussen, K. L., Thirlwall, M. F. and Wray, D. S. (1996) New results on biostratigraphy, paleomagnetism, geochemistry and correlation from the standard section for the Upper Cretacous white chalk of northern Germany (Lägerdorf - Kronsmoor - Hemmoor). Mitteilungen aus dem Geologisch-Paläontologischen Institut der Universität Hamburg, 77 . pp. 545-575.

Book chapters

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Glock, N., Schönfeld, J. and Mallon, J. (2012) The functionality of pores in benthic Foraminifera and bottom water oxygenation: a review . In: ANOXIA: Evidence for Eukaryote Survival and Paleontological Strategies. , ed. by Altenbach, A. V., Bernhard, J. M. and Seckbach, J.. Cellular Origin, Life in Extreme Habitats and Astrobiology, 21 . Springer , Netherlands, pp. 537-552. ISBN 978-94-007-1895-1 DOI 10.1007/978-94-007-1896-8_28.

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Mallon, J., Glock, N. and Schönfeld, J. (2012) The response of benthic Foraminifera to low-oxygen conditions of the Peruvian oxygen minimum zone. In: ANOXIA : Evidence for Eukaryote Survival and Paleontological Strategies. , ed. by Altenbach, A. V., Bernhard, J. M. and Seckbach, J.. Cellular Origin, Life in Extreme Habitats and Astrobiology, 21 . Springer, Dordrecht, The Netherlands, pp. 305-322. ISBN 978-94-007-1895-1 DOI 10.1007/978-94-007-1896-8_16.

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Schönfeld, J., Dullo, W. C. and Flögel, S. (2010) Ölaustritte - Schädigung der Tiefsee. In: Die Ölkatastrophe im Golf von Mexiko - was bleibt?. , ed. by Söding, E., Balzereit, F. and Schäfer, K.. Exzellenzcluster "Ozean der Zukunft", Christian-Albrechts-Universität, Kiel, pp. 32-33.


Löwemark, L., Lin, I. T., Wang, C. H. and Schönfeld, J. (2008) A test of gardening hypothesis for the trace fossil Zoophycos. In: Sediment-Organism Interactions: A Multifaceted Ichnology. , ed. by Bromley, R. G., Buatois, L. A., Mángano, M. G., Genise, J. F. and Melchor, R. N.. SEPM Special Publication, 88 . SEPM, Tulsa, Okla., USA, pp. 79-86.


Kucera, M. and Schönfeld, J. (2007) The origin of modern oceanic foraminiferal faunas and Neogene climate change. In: Deep-Time Perspectives on Climate Change: Marrying the Signal from Computer Models and Biological Proxies. , ed. by Williams, M., Haywood, A. M., Gregory, J. and Schmidt, D. N.. The Micropalaeontology Society Special Publications . Geological Society Publishing House, London, pp. 409-425. ISBN 978-1-86239-240-3

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Schönfeld, J. and Timmermann, A. (2005) Millennial-scale Variability of the Global Ocean Circulation. Open Access In: IFM-GEOMAR [Annual] Report 2002-2004 From the Seafloor to the Atmosphere - Marine Sciences at IFM-GEOMAR Kiel -. , ed. by Villwock, A.. IFM-GEOMAR, Kiel, Germany, pp. 33-34.

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Nürnberg, D. , Brughmans, N., Schönfeld, J., Ninnemann, U. and Dullo, W. C. (2004) Paleo-export production, terrigenous flux and sea surface temperatures around Tasmania - implications for glacial/interglacial changes in the subtropical convergence Zone. In: The cenozoic southern ocean: tectonics, sedimentation and climate change between Australia and Antarctica. , ed. by Exon, N., Kennett, J. and Malone, M.. Geophysical Monograph Series, 151 . AGU, Washington, DC, pp. 291-318. ISBN 0-87590-416-5


Stickley, C. E., Brinkhuis, H., Mcgonigal, K. L., Chaproniere, G. C. H., Fuller, M., Kelly, D. C., Nürnberg, D. , Pfuhl, H. A., Schellenberg, S. A., Schönfeld, J., Suzuki, N., Touchard, Y., Wei, W., Williams, G. L., Lara, J. and Stant, S. A. (2004) Late Cretaceous-Quaternary biomagnetostratigraphy of ODP Sites 1168, 1170, 1171 and 1172, Tasmanian Gateway. In: Proceedings ODP, Scientific Results, Available from World Wide Web: http://www-odp.tamu.edu/publications/189_SR/VOLUME/CHAPTERS/111.PDF. ; 189 , ed. by N.F., K.. TAMU, College Station, USA, pp. 1-57.

Presentations

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Erdem, Z., Schönfeld, J., Voigt, S., Glock, N., Eisenhauer, A. and Dengler, M. (2014) A 22 kyr record of an evolving mid-depth hiatus in sediments at the Peruvian margin. [Talk] In: GeoFrankfurt 2014. , 21.-24.09.2014, Frankfurt am Main .


Haynert, K., Schönfeld, J. and Thomsen, J. (2014) Response of benthic foraminifera from coastal habitats to ocean acidification. [Talk] In: Ocean Sciences Meeting 2014. , 23.-28.02.2014, Honululu, Hawaii, USA .


Korsun, S., Alve, E., Golikova, E., Hess, S., Husum, K., Panieri, G. and Schönfeld, J. (2014) Does AMBI, a commonly used macrofauna-based ecological monitoring measure, work for benthic foraminifera?. [Talk] In: International Symposium on Foraminifera FORAMS 2014. , 19.-24.01.2014, Concepcion, Chile .


Korsun, S., Spezzaferri, S., Schönfeld, J., Alve, E., Geslin, E. and Jorissen, F. (2014) The FOBIMO (FOraminiferal BIo-MOnitoring) initiative – a protocol for benthic foraminiferal monitoring studies. [Talk] In: International Symposium on Foraminifera FORAMS 2014. , 19.-24.01.2014, Concepcion, Chile .


Schönfeld, J., Geslin, E. and Kuhnt, W. (2014) Foraminiferal biomonitoring by education - education for biomonitoring. [Talk] In: GeoFrankfurt 2014. , 21.-24.09.2014, Frankfurt am Main .


Haeckel, M. , Wallmann, K. , Schmidt, M. , Liebetrau, V., Sommer, S., Schroller, D., Schönfeld, J., Karstens, J. and Berndt, C. (2013) Fluid expulsion at a 3-km long fracture system in the Northern North Sea – geochemical constraints on the origin of gas and water . [Talk] In: AGU Fall Meeting 2013. , 09.-13.12.2013, San Francisco, USA .


Dorst, S., Schönfeld, J. and Walter, L. (2012) Biodiversity of benthic foraminifera on the shelf and slope of the NE-Atlantic. [Talk] In: Centenary Meeting of the Paläontologische Gesellschaft. , 24.-29.09.2012, Berlin .


Schönfeld, J. (2012) The FOBIMO recommendations - achievements and perspectives. [Talk] In: FOBIMO Workshop Foraminiferal Biomonitoring. , 30.09.2012, Fribourg, Schweiz .


Mildner, T. C., Eden, C., Nürnberg, D. and Schönfeld, J. (2011) Loop current variability due to wind stress and reduced sea level during the Last Glacial Maximum. [Talk] In: AGU Fall Meeting 2011. , 05.12.-09.12.2011, San Francisco, California, USA .


Mildner, T. C., Eden, C., Nürnberg, D. and Schönfeld, J. (2011) Loop Current variability – its relation to meridional overturning circulation and the impact of Mississippi river discharge. [Talk] In: DFG Workshop Schwerpunktprogramm INTERDYNAMIK. , 28.02.-01.03.2011, Bremen .


Schönfeld, J. (2011) History and development of methods in Recent foraminiferal studies. [Talk] In: FOBIMO Workshop Foraminiferal Biomonitoring. , 22.06.2011, Fribourg, Switzerland .


Schönfeld, J. (2011) The use of foraminifera for bio-monitoring of marine environments - results and recommendations from the FOBIMO Workshop. [Talk] In: Annual TMS Foram/Nannofossil Group Meeting "MIKRO-2011". , 30.06.2011, Krakau, Poland .


Stumpf, R., Frank, M. , Schönfeld, J. and Haley, B. A. (2011) Climatically driven changes in sediment supply on the SW Iberian shelf since the Last Glacial Maximum. [Talk] In: Goldschmidt Conference 2011. , 14.-19.08.2011, Prague, Czech Republic ; A1772-A1978 . Mineralogical Magazine, 75(3) .


Glock, N., Eisenhauer, A. , Milker, Y., Liebetrau, V., Schönfeld, J., Mallon, J., Sommer, S. and Hensen, C. (2010) Environmental Influences on the Pore Density in Bolivina spissa. [Talk] In: FORAMS 2010 - International Symposium on Foraminifera. , 05.09.-10.09.2010, Bonn .


Haynert, K. and Schönfeld, J. (2010) Responses of the benthic foraminiferal species Ammonia beccarii to a high CO2 ocean. [Talk] In: International Symposium on Foraminifera 2010. , 05.-10.09.2010, Bonn .


Schönfeld, J. (2010) Distribution of recent benthic foraminifera in the southern Florida Straits. [Talk] In: FORAMS 2010. , 05.09.-10.09.2010, Bonn .


Bahr, A., Nürnberg, D. , Schönfeld, J. and Garbe-Schönberg, C. D. (2009) Abrupt intermediate water mass reconfiguration in the Florida Straits during MIS 5 recorded with combined forminiferal Mg/Ca and δ18O measurements. [Talk] In: 99. Annual Meeting of the Geologische Vereinigung. , 05.10.-07.10, Göttingen .


Schönfeld, J. (2009) Neogene evolutionary patterns of modern oceanic foraminiferal faunas. [Other] In: The Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Meeting. , 04.06, Zürich, Switzerland .


Stumpf, R., Frank, M. , Haley, B. A. and Schönfeld, J. (2009) Late Quaternary variability of Mediterranean Outflow Water based on neodymium and lead isotopes. [Talk] In: Goldschmidt Conference 2009. , 22.06, Davos, Switzerland .


Stumpf, R., Frank, M. , Haley, B. A. and Schönfeld, J. (2009) Radiogenic isotopes in the Mediterranean Outflow Water (MOW): Late Quaternary to Holocene variability of neodymium and lead. [Talk] In: 4th MedCLIVAR Workshop 2009. , 28.09, Sesimbra, Portugal .


Flögel, S., Dullo, W. C. , Pfannkuche, O., Schönfeld, J. and Rüggeberg, A. (2008) Cold-water coral growth in relation to the hydrography of the Celtic and Nordic European Continental Margin. [Talk] In: HERMES Annual Meeting. , 31.03, Carvoeiro, Portugal .


Schönfeld, J. (2008) A brief introduction into the genus Uvigerina. [Talk] In: HERMES Workshop Taxonomy and Ecology of Recent Foraminifera. , 07.04.-10.04, Ancona, Italy .


Schönfeld, J. (2008) Taxonomy, distribution and ecology of benthic foraminifera at the Iberian Margin - what can we learn from historical data sets?. [Talk] In: HERMES Workshop Taxonomy and Ecology of Recent Foraminifera. , 07.04.-10.04, Ancona, Italy .


Voigt, S., Schönfeld, J. and Friedrich, O. (2008) Campanian-Maastrichtian carbon cycle changes: a linkage to late Cretaceous cooling?. [Talk] In: IAS Meeting of Sedimentology. , 03.09, Bochum .


Haeckel, M. , Liebetrau, V., Linke, P. , Reitz, A., Schneider, J., Schönfeld, J. and Vanneste, H. (2007) Sources and rates of fluid flow at mud volcanoes - examples from the Gulf of Cadiz. [Talk] In: AGU Fall Meeting 2007. , 10.-15.12, San Francisco, USA .


Liebetrau, V., Rüggeberg, A., Fietzke, J. , Eisenhauer, A. , Flögel, S., Linke, P. and Schönfeld, J. (2007) Combined application of stable strontium (Delta88/86Sr) and U-Th isotope systematics on cold-water corals from the Gulf of Cadiz: a new proxy for Holocene changes of the Mediterranean outflow. [Talk] In: The Oceans in the Earth System, International Conference 2007 and 97th Annual Meeting of the Geologische Vereinigung (GV). , 01.-05.10, Bremen .


Liebetrau, V., Rüggeberg, A., Fietzke, J. , Eisenhauer, A. , Flögel, S., Linke, P. and Schönfeld, J. (2007) Combined application of stable strontium (Delta88/86Sr) and U-Th isotope systematics on cold-water corals from the Gulf of Cadiz: a new proxy for Holocene changes of the Mediterranean outflow. [Talk] In: Goldschmidt Conference 2007. , 08, Köln .


Liebetrau, V., Rüggeberg, A., Fietzke, J. , Eisenhauer, A. , Flögel, S., Linke, P. and Schönfeld, J. (2007) Stable strontium (δ88/86Sr) and U-Th isotope systematics of cold-water corals: a combined proxy for Holocene changes of the Mediterranean outflow. [Talk] In: AGU Annual Meeting. , 12, San Francisco/USA .


Polovodova, I., Nikulina, A., Schönfeld, J. and Belozersky, G. (2007) Recent benthic foraminifera in moderate polluted environment: a case study from Kiel Fjord. [Talk] In: Foraminiferal and Nannofossil Joint Spring Meeting. , 07.-08.06, Angers, France .


Schönfeld, J. (2007) Anthropogenic influences on benthic foraminiferal assemblages. [Talk] In: Workshop Human Impact on Marine Benthic Ecosystems. , 16.01, Utrecht, Niederlande .


Nürnberg, D. , Schönfeld, J., Flögel, S., Eden, C. and Tiedemann, R. (2006) LOOP Current variability - its relation to meridional overturning circulation and the impact of Mississippi discharge. [Talk] In: DFG-Workshop Schwerpunktprogramm INTERDYNAMIK. , 18.09, Bremen .


Schönfeld, J., Nikoulina, A., Numberger, L., Polovodova, I. and Dullo, W. C. (2006) Long-term changes of benthic foraminiferal assemblages in the western Baltic Sea associated with Anthropocene environmental changes. [Other] In: The Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Spring Meeting. , 25.06, Liverpool, U.K. .


Numberger, L., von Bröckel, K., Schönfeld, J. and Spindler, M. (2005) Observation of a spring bloom at Kiel Bight, depositional events and reactions of the benthic foraminiferal community. [Other] In: The Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Spring Meeting. , 16.06, Southampton, UK .


Schönfeld, J., Dullo, W. C. , Linke, P. , Pfannkuche, O. and Rüggeberg, A. (2005) Benthic foraminifera from deep-water coral mounds in the Porcupine Seabight, NE Atlantic. [Other] In: The Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Spring Meeting. , 16.06, Southampton, UK .


Schönfeld, J., Dullo, W. C. , Linke, P. , Pfannkuche, O. and Rüggeberg, A. (2005) Benthic foraminifera from deep-water coral mounds in the Porcupine Seabight, NE Atlantic. [Other] In: GeoErlangen 2005, System Earth -Biosphere Coupling Regional Geology of Central Europe. , 29.09, Erlangen .


Schönfeld, J. (2005) Die Karibik und ihre Bedeutung für unsere Lebensverhältnisse in Mitteleuropa. [Public Lecture] In: Vortragsreihe der "Freunde der Geologie München e.v.". , 15.02, München .


Schönfeld, J., Nürnberg, D. , Regenberg, M., Steph, S., Dullo, W. C. , Rühlemann, C. and Wefer, G. (2005) Variabilität der karibischen Oberflächenwasser-Salinitäten im Zuge rascher Klimawechsel während der letzten 30.000 Jahre - Ergebnisse SONNE Expedition SO164 (RASTA, GOLDFLOS). [Other] In: BMBF-Statusseminar "Meeresforschung mit FS SONNE". , 09.03.-11-03, Rostock-Warnemünde .

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Kudrass, H. R., Schönfeld, J., Erlenkeuser , H., Winn, K. and von Grafenstein, R. (1992) THE LAST GLACIAL-INTERGLACIAL TRANSITION IN THE SOUTH CHINA SEA RECORDED BY STABLE ISOTOPE OF BENTHIC AND PLANCTONIC FORAMINIFERA. [Talk] In: 4. International Conference on Paleoceanography (ICP IV). , 21.09.-25.09.1992, Kiel .

Conference posters

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Erdem, Z., Schönfeld, J. and Glock, N. (2015) Benthic foraminifera as indicators of changing redox conditions: a 22,000 year record from the Peruvian margin. [Poster] In: The Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Spring Meeting 2015. , 14-18.06.2015, Plymouth, UK .


Erdem, Z., Schönfeld, J. and Glock, N. (2015) A 22,000 year record of changing redox conditions from the Peruvian Oxygen Minimum Zone (OMZ): benthic foraminifera approach . [Poster] In: AGU Fall Meeting 2015. , 14.-18.12.2015, San Francisco, USA .


Polovodova-Asteman, I. and Schönfeld, J. (2015) Invasive benthic foraminifera breaching biogeographical barriers. [Poster] In: The Micropalaeontological Society’s Foraminifera and Nannofossil Groups Spring Meeting. , 14.-16.06.2015, Plymouth, Great Britain .


Hoffmann, J., Bahr, A., Voigt, S., Schönfeld, J. and Nürnberg, D. (2014) Abrupt Late Pleistocene Changes in Northern South American River Run-Off. [Poster] In: AGU Fall Meeting 2014. , 15.-19.12.2014, San Francisco, USA .


Jentzen, A., Schönfeld, J. and Nürnberg, D. (2014) Distribution and Geochemical Composition of Living Planktonic Foraminifera in the Caribbean Sea. [Poster] In: AGU Fall Meeting 2014. , 15.-19.12.2014, San Francisco, USA .


Jentzen, A., Schönfeld, J., Kucera, M., Weiner, A. and Nürnberg, D. (2014) Short and long-term dynamics of planktonic foraminiferal assemblages off Puerto Rico (Caribbean) - Impact of Hurricane "Sandy". [Poster] In: International Symposium on Foraminifera FORAMS 2014. , 19.-24.01.2014, Concepcion, Chile .


Schönfeld, J., Mendes, I., Ferreira, O. and Rosa, F. (2014) Ecology and diversity patterns of benthic foraminifera from Ria Formosa, Algarve, Portugal. [Poster] In: The Micropalaeontological Society’s Foraminifera and Nannofossil Groups Spring Meeting 2014. , 23.-25.6.2014, Texel, Netherlands .

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Erdem, Z., Schönfeld, J., Voigt, S., Glock, N., Eisenhauer, A. and Dengler, M. (2013) SFB754: Sediments of the Peruvian Oxygen Minimum Zone as records of mid-depth ocean dynamics. [Poster] In: 11. International Conference on Paleoceanography (ICP11) 2013. , 01.-06.09.2013, Sitges - Barcelona, Spain .


Jentzen, A., Schönfeld, J., Kucera, M., Nürnberg, D. and Weiner, A. (2013) Living planktonic foraminifera in the Caribbean Sea - a proxy validation study. [Poster] In: 11. International Conference on Paleoceanography (ICP11) 2013. , 01.-06.09.2013, Sitges - Barcelona, Spain .


Schönfeld, J., Glock, N. and Kuhnt, T. (2013) Constraints on benthic foraminiferal proxies for bottom-water oxygenation. [Poster] In: 11. International Conference on Paleoceanography (ICP11) 2013. , 01.-06.09.2013, Sitges - Barcelona, Spain .


Haynert, K., Schönfeld, J., Thomsen, J. and Polovodova, I. (2012) Response of benthic foraminifera to a naturally CO2-rich coastal habitat in Flensburg Fjord (SW Baltic Sea). [Poster] In: Ocean Sciences Meeting 2012. , 20.-24.02.2012, Salt Lake City, USA .


Schönfeld, J., Golikova, E., Korsun, S. and Spezzaferri, S. (2012) The Helgoland Experiment - assessing the influence of methodologies on Recent benthic foraminiferal assemblage composition. [Poster] In: The Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Meeting. , 21.-22.06.2012, Edinburgh, Great Britain .


Schönfeld, J., Nürnberg, D. and Mildner, T. C. (2012) Glacial to Holocene variability of the Florida Current revealed by Sortable Silt records from the Gulf Stream source. [Poster] In: GV and SEDIMENT Meeting 2012, International Conference of the Geologische Vereinigung and Sediment. , 23.09.-28.09.2012, Hamburg .


Walter, L., Dorst, S. and Schönfeld, J. (2012) Biodiversity of benthic foraminifera on the shelf and slope of the Celtic Sea. [Poster] In: Centenary Meeting of the Paläontologische Gesellschaft. , 24.-29.09.2012, Berlin .


Haynert, K. and Schönfeld, J. (2010) Benthic foraminifer species Ammonia beccarii in a high CO2 world. [Poster] In: Clusterretreat . , 22.-23.03.2010, Schleswig .


Mallon, J., Glock, N., Schönfeld, J. and Sommer, S. (2010) Living (Rose Bengal) stained benthic foraminifera of the Peruvian oxygen minimum zone - discovering new proxies for oxygen reconstruction. [Poster] In: Ocean Sciences Meeting 2010 "Oxygen Minimum Zones and Climate Change: Observations and Prediction IV". , 22.02.-26.02.2010, Portland, Oregon, USA .


Mallon, J., Glock, N. and Schönfeld, J. (2010) Living (Rose Bengal) stained benthic foraminifera of the Peruvian oxygen mimimum zone as a new proxy for oxygen reconstruction. [Poster] In: 10th International Conference on Paleoceanography. , 29.08.-03.09.2010, La Jolla, Kalifornien, USA .


Stumpf, R., Frank, M. , Schönfeld, J. and Haley, B. A. (2010) A reconstruction of late Quaternary Mediterranean Outflow Water from radiogenic Nd, Sr and Pb isotopes. [Poster] In: 10th International Conference on Paleoceanography. , 31.08.2010, La Jolla, Kalifornien, USA .


Ehlert, C., Frank, M. , Eisenhauer, A. and Schönfeld, J. (2009) Biogeochemical reconstruction of past oxygenation conditions in the Peruvian coastal upwelling system. [Poster] In: Cioppino-Workshop "Transient Changes in Past Warm Climates". , 01.08, Urbino, Italy .


Glock, N., Eisenhauer, A. , Milker, Y., Liebetrau, V., Schönfeld, J., Mallon, J., Sommer, M. and Hensen, C. (2009) The Sensitivity of Pore Density in Tests of Bolivina Spissa to ambient Oxygen and Nitrate concentration. [Poster] In: AGU Fall Meeting 2009. , 14.12.-18.12, San Francisco, USA .


Glock, N., Eisenhauer, A. , Milker, Y., Liebetrau, V., Schönfeld, J., Mallon, J., Sommer, S. and Hensen, C. (2009) The Sensitivity of Pore Density in Tests of Bolivina Spissa to ambient Oxygen and Nitrate concentration. [Poster] In: GV Annual Meeting 2009. , 05.-07.10, Göttingen .


Stumpf, R., Frank, M. , Haley, B. A. and Schönfeld, J. (2009) Late Quaternary variability of Mediterranean Outflow Water based on neodymium and lead isotopes. [Poster] In: Cioppino Workshop 2009. , 01.08, Urbino, Italy .


Polovodova, I., Schönfeld, J. and Dullo, W. C. (2008) Foraminiferal test abnormalities as proxies of environmental change. [Poster] In: Foraminiferal and Nannofossil Joint Spring Meeting. , 15.05.-17.05, Tübingen .


Schweizer, M., Nikulina, A., Polovodova, I. and Schönfeld, J. (2008) Molecular identification of an Ammonia species from the Kiel fjord (Germany). [Poster] In: Foraminiferal and Nannofossil Joint Spring Meeting. , 15.05.-17.05, Tübingen .


Schönfeld, J., Dullo, W. C. , Pfannkuche, O., Rüggeberg, A. and Flögel, S. (2008) Benthic foraminifera from deep-water coral mounds in the Porcupine Seabight, NE Atlantic. [Poster] In: HERMES Annual Meeting. , 04, Portugal .


Schönfeld, J., Dullo, W. C. , Pfannkuche, O., Rüggeberg, A. and Flögel, S. (2008) Benthic foraminifera from Coral Mounds in the Porcupine Seabight (NE-Atalantic). [Poster] In: Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Spring Meeting. , 15.05.-17.05, Tübingen .


Haeckel, M. , Berndt, C., Liebetrau, V., Linke, P. , Reitz, A., Schönfeld, J. and Vanneste, H. (2007) Genesis and rates of fluid flow at the Mercator mud volcano, Gulf of Cadiz. [Poster] In: 17th Goldschmidt Conference 2007. , 19.-24.08, Köln .


Liebetrau, V., Rüggeberg, A., Fietzke, J. , Eisenhauer, A. , Flögel, S., Linke, P. and Schönfeld, J. (2007) Stable Strontium (δ88/86Sr) and U-Th systematics of cold-water corals as new proxy for holocene changes of the Mediterranean outflow. [Poster] In: AGU Fall Meeting 2007. , 12, San Francisco, USA .


Liebetrau, V., Rüggeberg, A., Fietzke, J. , Eisenhauer, A. , Flögel, S., Linke, P. and Schönfeld, J. (2007) Stable strontium (δ88/86Sr) and U-Th systematics of cold-water corals as new proxy for Holocene changes of the Mediterranean outflow. [Poster] In: Goldschmidt Conference. , 08, Köln .


Nikulina, A., Polovodova, I., Schönfeld, J. and Dullo, W. C. (2007) Living benthic foraminifera distribution in the Flensburg Fjord (western Baltic Sea). [Poster] In: Foraminiferal and Nannofossil Joint Spring Meeting. , 07.-08.06, Angers, France .


Nikulina, A., Polovodova, I., Schönfeld, J., Belozersky, G. and Dullo, W. C. (2007) The response of living benthic foraminifera to environmental geochemistry in the Kiel Bight, south-western Baltic Sea: preliminary results. [Poster] In: European Geosciences Union General Assembly. , 15.-20.04, Vienna, Austria .


Schönfeld, J., Rüggeberg, A., Dullo, W. C. and Pfannkuche, O. (2007) Mid-depth circulation in the northeastern Atlantic Ocean recorded in coral mounds from the Porcupine Seabight. [Poster] In: 9th International Conference on Paleoceanography (ICP). , 3.-7.09, Shanghai, China .


Schönfeld, J., Sommer, S., Pfannkuche, O. and Dullo, W. C. (2007) Benthic foraminifera from mud volcanoes in the Gulf of Cadiz: food and oxygen decoupled?. [Poster] In: Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Spring Meeting. , 07-08.06, Angers .


Schönfeld, J. and Numberger, L. (2006) The relationship between the diatom springbloom in the Baltic Sea and the feeding and reproduction habits of the benthic foraminiferal species Elphidium excavatum clavatum. [Poster] In: The Micropalaeontological Society's Foraminifera and Nannofossil Groups Joint Spring Meeting 2006. , 25.05, Liverpool, UK .

Theses - not published by a publisher

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Schönfeld, J. (1988) Zur Stratigraphie und Ökologie benthischer Foraminiferen im Schreibkreide-Richtprofil von Lägerdorf/Holstein. Open Access (PhD/ Doctoral thesis), Christian-Albrechts-Universität, Kiel, 93 pp.

Reports - Cruise Reports

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Schönfeld, J., Golikova, E., Jurkat, L., Lange, M., Mey, R., Milker, Y., Müller-Navarra, K., Schmid, S., Schmiedl, G., Wein, T. and Weissenbach, J. (2014) Cruise Report ALKOR 438 [AL438] - Foraminiferal biomonitoring in the North Sea, May 29 - May 31, 2014, Kiel (Germany) - Kiel (Germany). Open Access . GEOMAR Helmholtz-Zentrum für Ozeanforschung, Kiel, Germany, 54 pp. DOI 10.3289/CR_AL438.

Schönfeld, J., Bahr, A., Bannert, B., Bayer, A. S., Bayer, M., Beer, C., Blanz, T., Dullo, W. C. , Flögel, S., Garlichs, T., Haley, B. A., Hübscher, C., Joseph, N., Kucera, M., Langenbacher, J., Nürnberg, D. , Ochsenhirt, W. T., Petersen, A., Pulm, P., Titschack, J. and Troccoli, L. and Senatskommission für Ozeanographie der Deutschen Forschungsgemeinschaft, MARUM – Zentrum für Marine Umweltwissenschaften der Universität Bremen (2011) Surface and Intermediate Water hydrography, planktonic and benthic biota in the Caribbean Sea – Climate, Bio and Geosphere linkages (OPOKA) : [Meteor] Cruise No. 78, Leg 1 [M78/1], February 22 – March 28, 2009, Colón (Panama) – Port of Spain (Trinidad and Tobago). . Meteor-Berichte, 11-6 . Leitstelle Meteor, Institut für Meereskunde der Universität Hamburg, Hamburg, Germany, 40 pp. DOI 10.3289/cr_m78_1.

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Schönfeld, J., Seifert, R., Krastel-Gudegast, S. and Wefer, G. (2009) Forschungsschiff / Research Vessel METEOR Reise Nr. 78 / Cruise No.78 [M78], 21. 2. 2009 – 6. 7. 2009 "Caribbean palaeoceanography, energy and mass transfer on the Mid-Atlantic Ridge, sediment transport off Uruguay and Argentinia". . Forschungsschiff Meteor : Reise Nr. M ... = Research vessel Meteor, 78 . Leitstelle Dt. Forschungsschiffe, Hamburg, Germany, 49 pp.

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Pfannkuche, O., Bannert, B., Beck, T., Beuck, L., Dullo, W. C. , Flögel, S., Freiwald, A., Gass, S., Gektidis, M., Heger, A., Jamieson, A., Kavanagh, F., King, N., Kuhanec, B., Linke, P. , Martin, B., Neulinger, S., Noe, S., Queisser, W., Rüggeberg, A., Ruseler, S., Schiemer, I., Schmidt, S., Schönfeld, J., Taviani, M., Türk, M., Vertino, A. and Wigham, B. (2004) Geo-Biological Investigations on Azooxanthellate Cold-Water Coral Reefs on the Carbonate Mounds Along the Celtic Continental Slope. . Meteor-Berichte, 06-2 . UNSPECIFIED, 74 pp.

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Nürnberg, D., Schönfeld, J., Dullo, W. C. and Rühlemann, C., eds. (2003) RV SONNE cruise report SO164 RASTA: Rapid climate changes in the western tropical Atlantic - Assessment of the biogenous and sedimentary record, Balboa - Balboa, May 22 - June 28, 2002. Open Access . GEOMAR-Report, 109 . GEOMAR Forschungszentrum für marine Geowissenschaften, Kiel, 151 pp. DOI 10.3289/GEOMAR_REP_109_2003.

Reports - Weekly reports

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Schönfeld, J. (2009) 1. Wochenbericht M78/1. Open Access . UNSPECIFIED, 1 pp.

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Schönfeld, J. (2009) 2. Wochenbericht M78/1. Open Access . UNSPECIFIED, 1 pp.

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Schönfeld, J. (2009) 3. Wochenbericht M78/1. Open Access . UNSPECIFIED, 1 pp.

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Schönfeld, J. (2009) 4. Wochenbericht M78/1. Open Access . UNSPECIFIED, 1 pp.

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Schönfeld, J. (2009) 5. Wochenbericht M78/1. Open Access . UNSPECIFIED, 1 pp.

This list was generated on Sun Aug 25 03:51:36 2019 CEST.