Items where Author is "Bickert, Torsten"

Klages, JP, Gerschel, H, Salzmann, U, Nehrke, G, Müller, J, Hillenbrand, CD, Bohaty, SM and Bickert, T (2024) First discovery of Antarctic amber. Antarctic Science, 36(5). 439-440. doi:10.1017/S0954102024000208

Klages, JP, Hillenbrand, CD, Bohaty, SM, Salzmann, U, Bickert, T, Lohmann, G, Knahl, HS, Gierz, P, Niu, L, Titschack, J, Kuhn, G, Frederichs, T, Müller, J, Bauersachs, T, Larter, RD, Hochmuth, K, Ehrmann, W, Nehrke, G, Rodríguez-Tovar, FJ, Schmiedl, G, Spezzaferri, S, Läufer, A, Lisker, F, van de Flierdt, T, Eisenhauer, A, Uenzelmann-Neben, G, Esper, O, Smith, JA, Pälike, H, Spiegel, C, Dziadek, R, Ronge, TA, Freudenthal, T and Gohl, K (2024) Ice sheet–free West Antarctica during peak early Oligocene glaciation. Science, 385(6706). 322-327. doi:10.1126/science.adj3931

Zundel, M, Spiegel, C, Mark, C, Millar, I, Chew, D, Klages, J, Gohl, K, Hillenbrand, CD, Najman, Y, Salzmann, U, Ehrmann, W, Titschack, J, Bauersachs, T, Uenzelmann-Neben, G, Bickert, T, Müller, J, Larter, RD, Lisker, F, Bohaty, S and Kuhn, G (2024) A large-scale transcontinental river system crossed West Antarctica during the Eocene. Science Advances, 10(23). doi:10.1126/sciadv.adn6056

Cornuault, P, Westerhold, T, Pälike, H, Bickert, T, Baumann, KH and Kucera, M (2023) Nature and origin of variations in pelagic carbonate production in the tropical ocean since the mid-Miocene (ODP Site 927). Biogeosciences, 20(3). 597-618. doi:10.5194/bg-20-597-2023

Mulitza, S, Bickert, T, Bostock, HC, Chiessi, CM, Donner, B, Govin, A, Harada, N, Huang, E, Johnstone, HJH, Kuhnert, H, Langner, M, Lamy, F, Lembke-Jene, L, Lisiecki, LE, Lynch-Stieglitz, J, Max, L, Mohtadi, M, Mollenhauer, G, Muglia, J, Nürnberg, D, Paul, A, Rühlemann, C, Repschläger, J, Saraswat, R, Schmittner, A, Sikes, EL, Spielhagen, RF and Tiedemann, R (2022) World atlas of late quaternary foraminiferal oxygen and carbon isotope ratios. Earth System Science Data, 14(6). 2553-2611. doi:10.5194/essd-14-2553-2022

Spencer-Jones, CL, McClymont, EL, Bale, NJ, Hopmans, EC, Schouten, S, Müller, J, Abrahamsen, EP, Allen, C, Bickert, T, Hillenbrand, CD, Mawbey, E, Peck, V, Svalova, A and Smith, JA (2021) Archaeal intact polar lipids in polar waters: a comparison between the Amundsen and Scotia seas. Biogeosciences, 18(11). 3485-3504. doi:10.5194/bg-18-3485-2021

Raitzsch, M, Bijma, J, Bickert, T, Schulz, M, Holbourn, A and Kučera, M (2021) Atmospheric carbon dioxide variations across the middle Miocene climate transition. Climate of the Past, 17(2). 703-719. doi:10.5194/cp-17-703-2021

Tachikawa, K, Rapuc, W, Vidal, L, Dubois-Dauphin, Q, Westerhold, T, Guihou, A, Bickert, T, Pérez-Asensio, JN, Deschamps, P and Skonieczny, C (2021) Eastern Atlantic deep-water circulation and carbon storage inferred from neodymium and carbon isotopic compositions over the past 1.1 million years. Quaternary Science Reviews, 252. 106752. doi:10.1016/j.quascirev.2020.106752

Yehudai, M, Kim, J, Pena, LD, Jaume-Seguí, M, Knudson, KP, Bolge, L, Malinverno, A, Bickert, T and Goldstein, SL (2021) Evidence for a Northern Hemispheric trigger of the 100,000-y glacial cyclicity. Proceedings of the National Academy of Sciences, 118(46). e2020260118. doi:10.1073/pnas.2020260118

Venancio, IM, Shimizu, MH, Santos, TP, Lessa, DO, Portilho-Ramos, RC, Chiessi, CM, Crivellari, S, Mulitza, S, Kuhnert, H, Tiedemann, R, Vahlenkamp, M, Bickert, T, Sampaio, G, Albuquerque, ALS, Veiga, S, Nobre, P and Nobre, C (2020) Changes in surface hydrography at the western tropical Atlantic during the Younger Dryas. Global and Planetary Change, 184. 103047. doi:10.1016/j.gloplacha.2019.103047

Venancio, IM, Shimizu, MH, Santos, TP, Lessa, DO, Dias, BB, Chiessi, CM, Mulitza, S, Kuhnert, H, Tiedemann, R, Vahlenkamp, M, Bickert, T, Belem, AL, Sampaio, G, Albuquerque, ALS and Nobr, C (2020) Ocean-atmosphere interactions over the western South Atlantic during Heinrich stadials. Global and Planetary Change, 195. 103352. doi:10.1016/j.gloplacha.2020.103352

Johnstone, HJH, Kuhnert, H, Bickert, T, Romero, O and Pälike, H (2020) Single tests of hermocline dwelling foraminifera Globorotalia inflata as recorder of upper water column structure off Mauritania (NW Africa): methodology and paleoceanographic use. Paleoceanography and Paleoclimatology, 35(8). doi:10.1029/2019PA003844

Klages, JP, Salzmann, U, Bickert, T, Hillenbrand, CD, Gohl, K, Kuhn, G, Bohaty, SM, Titschack, J, Müller, J, Frederichs, T, Bauersachs, T, Ehrmann, W, van de Flierdt, T, Pereira, PS, Larter, RD, Lohmann, G, Niezgodzki, I, Uenzelmann-Neben, G, Zundel, M, Spiegel, C, Mark, C, Chew, D, Francis, JE, Nehrke, G, Schwarz, F, Smith, JA, Freudenthal, T, Esper, O, Pälike, H, Ronge, TA, Dziadek, R and the Science Team of Expedition PS104 (2020) Temperate rainforests near the South Pole during peak Cretaceous warmth. Nature, 580(7801). 81-86. doi:10.1038/s41586-020-2148-5

Vahlenkamp, M, Niezgodzki, I, De Vleeschouwer, D, Bickert, T, Harper, D, Kirtland Turner, S, Lohmann, G, Sexton, PF, Zachos, JC and Pälike, H (2018) Astronomically paced changes in deep-water circulation in the western North Atlantic during the middle Eocene. Earth and Planetary Science Letters, 484. 329-340. doi:10.1016/j.epsl.2017.12.016

Vahlenkamp, M, Niezgodzki, I, De Vleeschouwer, D, Lohmann, G, Bickert, T and Pälike, H (2018) Ocean and climate response to North Atlantic seaway changes at the onset of long-term Eocene cooling. Earth and Planetary Science Letters, 498. 185-195. doi:10.1016/j.epsl.2018.06.031

Gohl, K, Freudenthal, T, Hillenbrand, CD, Klages, J, Larter, R, Bickert, T, Bohaty, S, Ehrmann, W, Esper, O, Frederichs, T, Gebhardt, C, Küssner, K, Kuhn, G, Pälike, H, Ronge, T, Simões Pereira, P, Smith, J, Uenzelmann-Neben, G and van de Flierdt, C (2017) MeBo70 seabed drilling on a polar continental shelf: operational report and lessons from drilling in the Amundsen Sea Embayment of West Antarctica. Geochemistry, Geophysics, Geosystems, 18(11). 4235-4250. doi:10.1002/2017GC007081

Mulitza, S, Chiessi, CM, Schefuß, E, Lippold, J, Wichmann, D, Antz, B, Mackensen, A, Paul, A, Prange, M, Rehfeld, K, Werner, M, Bickert, T, Frank, N, Kuhnert, H, Lynch-Stieglitz, J, Portilho-Ramos, RC, Sawakuchi, AO, Schulz, M, Schwenk, T, Tiedemann, R, Vahlenkamp, M and Zhang, Y (2017) Synchronous and proportional deglacial changes in Atlantic meridional overturning and northeast Brazilian precipitation. Paleoceanography, 32(6). 622-633. doi:10.1002/2017PA003084

Johnstone, HJH, Steinke, S, Kuhnert, H, Bickert, T, Pälike, H and Mohtadi, M (2016) Automated cleaning of foraminifera shells before Mg/Ca analysis using a pipette robot. Geochemistry, Geophysics, Geosystems, 17(8). 3502-3511. doi:10.1002/2016GC006422

Jonkers, L, Zahn, R, Thomas, AL, Henderson, GM, Abouchami, W, Francois, R, Masqué, P, Hall, IR and Bickert, T (2015) Deep circulation changes in the central South Atlantic during the past 145 kyrs reflected in a combined 231Pa/230Th, Neodymium isotope and benthic d13C record. Earth and Planetary Science Letters, 419. 14-21. doi:10.1016/j.epsl.2015.03.004

Chapori, NG, Chiessi, CM, Bickert, T and Laprida, C (2015) Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function. Palaeogeography, Palaeoclimatology, Palaeoecology, 425. 67-75. doi:10.1016/j.palaeo.2015.02.027

Mudelsee, M, Bickert, T, Lear, CH and Lohmann, G (2014) Cenozoic climate changes: A review based on time series analysis of marine benthic δ18O records. Reviews of Geophysics, 52(3). 333-374. doi:10.1002/2013RG000440

Henrich, R, Baumann, KH and Bickert, T (2014) New concepts on mass wasting phenomena at passive and active margins of the Alpine Tethys: Famous classical outcrops in the Berchtesgaden – Salzburg Alps revisited. Part A: Jurassic slide/debrite complexes triggered by syn-sedimentary block faulting. In: Krastel, S, Behrmann, JH, Völker, D, Stipp, M, Berndt, C, Urgeles, R, Chaytor, J, Huhn, K, Strasser, M and Harbitz, CB (eds.) Submarine Mass Movements and Their Consequences: 6th International Symposium. Advances in Natural and Technological Hazards Research, 37. Springer International Publishing, 661-674. doi:10.1007/978-3-319-00972-8_59

Henrich, R, Baumann, KH and Bickert, T (2014) New concepts on mass wasting phenomena at passive and active margins of the Alpine Tethys: Famous classical outcrops in the Berchtesgaden – Salzburg Alps revisited. Part B: Stacking patterns of slide/debrite complexes in an active lower Cretaceous foreland wedge-top basin. In: Krastel, S, Behrmann, JH, Völker, D, Stipp, M, Berndt, C, Urgeles, R, Chaytor, J, Huhn, K, Strasser, M and Harbitz, CB (eds.) Submarine Mass Movements and Their Consequences: 6th International Symposium. Advances in Natural and Technological Hazards Research, 37. Springer International Publishing, 675-683. doi:10.1007/978-3-319-00972-8_60

Vanderbroucke, TRA, Munnecke, A, Leng, MJ, 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. Geochemistry Geophysics Geosystems, 14(1). 86-101. doi:10.1029/2012GC004348

Zeeden, C, Hilgen, FJ, Westerhold, T, Lourens, LJ, Röhl, U and Bickert, T (2013) Revised Miocene splice, astronomical tuning and calcareous plankton biochronology of ODP Site 926 between 5 and 14.4 Ma. Palaeogeography, Palaeoclimatology, Palaeoecology, 369. 430-451. doi:10.1016/j.palaeo.2012.11.009

Preiss-Daimler, IV, Henrich, R and Bickert, T (2013) The final Miocene carbonate crash in the Atlantic: Assessing carbonate accumulation, preservation and production. Marine Geology, 343. 39-46. doi:10.1016/j.margeo.2013.06.010

Just, J, Heslop, D, von Dobeneck, T, Bickert, T, Dekkers, MJ, Frederichs, T, Meyer, I and Zabel, M (2012) Multi-proxy characterization and budgeting of terrigenous end-members at the NW African continental margin. Geochemistry Geophysics Geosystems, 13. Q0AO01. doi:10.1029/2012GC004148

Just, J, Dekkers, MJ, von Dobeneck, T, van Hoesel, A and Bickert, T (2012) Signatures and significance of aeolian, fluvial, bacterial and diagenetic magnetic mineral fractions in Late Quaternary marine sediments off Gambia, NW Africa. Geochemistry Geophysics Geosystems, 13. Q0AO02. doi:10.1029/2012GC004146

Heinrich, S, Zonneveld, KAF, Bickert, T and 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

Bickert, T and Henrich, R (2011) Climate records of deep-sea sediments: Towards the Ceozonic Ice House. In: Hüneke, H and Mulder, T (eds.) Deep-Sea Sediments. Developments in Sedimentology, 63. Elsevier, 793-823. doi:10.1016/B978-0-444-53000-4.00012-3

Haarmann, T, Hathorne, EC, Mohtadi, M, Groeneveld, J, Kölling, M and 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

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

Raitzsch, M, Hathorne, EC, 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, 39(11). 1039-1042. doi:10.1130/G32009.1

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, EC, Groeneveld, J and Bickert, T (2011) U/Ca in benthic foraminifers: A proxy for the deep-sea carbonate saturation. Geochemistry Geophysics Geosystems, 12(6). doi:10.1029/2010GC003344

Hesse, T, Butzin, M, Bickert, T and Lohmann, G (2011) A model-data comparison of d13C in the glacial Atlantic Ocean. Paleoceanography, 26. PA3220. doi:10.1029/2010PA002085

Raitzsch, M, Dueñas-Bohórquez, A, Reichart, GJ, de Nooijer, LJ and Bickert, T (2010) Incorporation of Mg and Sr in calcite of cultured benthic foraminifera: impact of calcium concentration and associated saturation state. Biogeosciences, 7(3). 869-881. doi:10.5194/bg-7-869-2010

Wilke, I, Meggers, H and 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 Part I: Oceanographic Research Papers, 56(1). 89-106. doi:10.1016/j.dsr.2008.08.001

Karas, C, Nürnberg, D, Gupta, AK, Tiedemann, R, Mohan, K and Bickert, T (2009) Mid-Pliocene climate change amplified by a switch in Indonesian subsurface throughflow. Nature Geoscience, 2. 434-438. doi:10.1038/NGEO520

Itambi, AC, von Dobeneck, T, Mulitza, S, Bickert, T and Heslop, D (2009) Millennial-scale northwest African droughts related to Heinrich events and Dansgaard-Oeschger cycles: Evidence in marine sediments from offshore Senegal. Paleoceanography, 24. PA1205. doi:10.1029/2007PA001570

Kuhnert, H, Bickert, T and Paulsen, H (2009) Southern Ocean frontal system changes precede Antarctic ice sheet growth during the middle Miocene. Earth and Planetary Science Letters, 284(3-4). 630-638. doi:10.1016/j.epsl.2009.05.030

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. Geochemistry Geophysics Geosystems, 9(5). Q05010. doi:10.1029/2007GC001788

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

Hönisch, B, Bickert, T and Hemming, NG (2008) Modern and Pleistocene boron isotope composition of the benthic foraminifer Cibicidoides wuellerstorfi. Earth and Planetary Science Letters, 272(1-2). 309-318. doi:10.1016/j.epsl.2008.04.047

Brijker, JM, Jung, SJA, Ganssen, GM, Bickert, T and Kroon, D (2007) ENSO related decadal scale climate variability from the Indo-Pacific Warm Pool. Earth and Planetary Science Letters, 253(1-2). 67-82. doi:10.1016/j.epsl.2006.10.017

Tjallingii, R, Röhl, U, Kölling, M and Bickert, T (2007) Influence of the water content on X-ray fluorescence core- scanning measurements in soft marine sediments. Geochemistry Geophysics Geosystems, 8(2). Q02004. doi:10.1029/2006GC001393

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. doi:10.5194/cpd-2-605-2006

Bickert, T (2006) Influence of geochemical processes on stable isotope distribution in marine sediments. In: Schulz, HD and Zabel, M (eds.) Marine Geochemistry, 2nd Ed. Springer, Berlin, Heidelberg, 339-369. doi:10.1007/3-540-32144-6_10

Wilke, I, Peeters, FJC and Bickert, T (2006) The influence of seawater carbonate ion concentration [CO32-] on the stable isotope composition of planktic foraminifera species Globorotalia inflata. Marine Micropaleontology, 58(4). 243-258. doi:10.1016/j.marmicro.2005.11.005

Westerhold, T, Bickert, T and Röhl, U (2005) Middle to late Miocene oxygen isotope stratigraphy of ODP site 1085 (SE Atlantic): new constrains on Miocene climate variability and sea-level fluctuations. Palaeogeography, Palaeoclimatology, Palaeoecology, 217(3-4). 205-222. doi:10.1016/j.palaeo.2004.12.001

Diester-Haass, L, Meyers, PA and Bickert, T (2004) Carbonate crash and biogenic bloom in the late Miocene: Evidence from ODP Sites 1085, 1086, and 1087 in the Cape Basin, southeast Atlantic Ocean. Paleoceanography, 19(PA1007). doi:10.1029/2003PA000933

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 and Ratmeyer, V (eds.) The South Atlantic in the Late Quaternary: Reconstruction of Material Budgets and Current Systems. Springer, Berlin, Heidelberg, New York, 695-722.

Bickert, T and Mackensen, A (2004) Last glacial to holocene changes in South Atlantic Deep Water Circulation. In: Wefer, G, Mulitza, S and Ratmeyer, V (eds.) The South Atlantic in the Late Quaternary: Reconstruction of Material Budgets and Current Systems. Springer, Berlin, Heidelberg, New York, 671-693.

Bickert, T, Haug, GH and Tiedemann, R (2004) Late Neogene benthic stable isotope record of ODP Site 999: Implications for Caribbean paleoceanography, organic carbon burial and the Messininian Salinity Crisis. Paleoceanography, 19. PA1023. doi:10.1029/2002PA000799

Gröger, M, Henrich, R and 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(4). 321-332. doi:10.1016/S0025-3227(03)00263-9

Gröger, M, Henrich, R and 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(4). 307-320. doi:10.1016/S0025-3227(03)00264-0

Vidal, L, Bickert, T, Wefer, G and Röhl, U (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 and Pätzold, J (2001) Shell succession, assemblage and species dependent effects on the C/O-isotopic composition of brachiopods — examples from the Silurian of Gotland. Chemical Geology, 175(1-2). 61-107. doi:10.1016/S0009-2541(00)00364-8

Bickert, T (1992) Rekonstruktion der spätquartären Bodenwasserzirkulation im östlichen Südatlantik über stabile Isotope benthischer Foraminiferen. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 027. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000106685