Items where Author is "Hefter, Jens"

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Article

Article
Bertassoli Jr., D. J. ORCID: https://orcid.org/0000-0003-3141-8533, Häggi, C. , Chiessi, C. M. , Schefuß, E. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Akabane, T. K. and Sawakuchi, A. O. (2022)
Controls on the distributions of GDGTs and n-alkane isotopic compositions in sediments of the Amazon River Basin ,
Chemical Geology, 594 , p. 120777 .
doi:10.1016/j.chemgeo.2022.120777 , hdl:10013/epic.4f922457-f905-4cef-8b60-d600bed3bb0f

Article
Tesi, T. , Muschitiello, F. , Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Miserocchi, S. , Langone, L. , Ceccarelli, C. , Panieri, G. , Chiggiato, J. , Nogarotto, A. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Ingrosso, G. , Giglio, F. , Giordano, P. and Capotondi, L. (2021)
Rapid Atlantification along the Fram Strait at the beginning of the 20th century ,
Science Advances, 7 (48) .
doi:10.1126/sciadv.abj2946 , hdl:10013/epic.766b6d85-8b9f-4050-a067-e8a07600752b

Article
Romero, O. E. , Baumann, K. H. , Zonneveld, K. A. F. , Donner, B. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Hamady, B. , Pospelova, V. and Fischer, G. (2020)
Flux variability of phyto- and zooplankton communities in the Mauritanian coastal upwelling between 2003 and 2008 ,
Biogeosciences, 17 (1), pp. 187-214 .
doi:10.5194/bg-17-187-2020 , hdl:10013/epic.553ac159-9c31-4930-8144-d9b861b7cb72
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Article
van Maldegem, L. M. , Sansjofre, P. , Weijers, J. W. H. , Wolkenstein, K. , Strother, P. K. , Wörmer, L. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Nettersheim, B. J. , Hoshino, Y. , Schouten, S. , Sinninghe Damsté, J. S. , Nath, N. , Griesinger, C. , Kuznetsov, N. B. , Elie, M. , Elvert, M. , Tegelaar, E. , Gleixner, G. and Hallmann, C. (2019)
Bisnorgammacerane traces predatory pressure and the persistent rise of algal ecosystems after Snowball Earth ,
Nature Communications, 10 (1) .
doi:10.1038/s41467-019-08306-x , hdl:10013/epic.913efb1f-95e7-45e8-8265-2a7238ff31ab
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Article
Häggi, C. , Schefuß, E. , Sawakuchi, A. O. , Chiessi, C. M. , Mulitza, S. , Bertassoli Jr., D. J. ORCID: https://orcid.org/0000-0003-3141-8533, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Zabel, M. ORCID: https://orcid.org/0000-0003-4681-1821, Baker, P. A. ORCID: https://orcid.org/0000-0001-9438-855X and Schouten, S. (2019)
Modern and late Pleistocene particulate organic carbon transport by the Amazon River: Insights from long-chain alkyl diols ,
Geochimica et Cosmochimica Acta, 262 , pp. 1-19 .
doi:10.1016/j.gca.2019.07.018

Article
Crivellari, S. , Chiessi, C. M. , Kuhnert, H. , Häggi, C. , da Costa Portilho-Ramos, R. , Zeng, J. Y. , Zhang, Y. , Schefuß, E. , Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Alexandre, F. , Sampaio, G. and Mulitza, S. (2018)
Increased Amazon freshwater discharge during late Heinrich Stadial 1 ,
Quaternary Science Reviews, 181 , pp. 144-155 .
doi:10.1016/j.quascirev.2017.12.005 , hdl:10013/epic.9a96d0ba-2c1a-4db3-b72a-86c68717f9fa

Article
Lattaud, J. , Kirkels, F. , Peterse, F. , Freymond, C. V. , Eglinton, T. I. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Balzano, S. , Villanueva, L. , van der Meer, M. T. J. , Hopmans, E. C. , Sinninghe Damsté, J. S. and Schouten, S. (2018)
Long-chain diols in rivers: distribution and potential biological sources ,
Biogeosciences, 15 (13), pp. 4147-4161 .
doi:10.5194/bg-15-4147-2018 , hdl:10013/epic.03c56f90-d5e7-4980-aa1d-11ad0e798c9d

Article
Sun, S. , Schefuß, E. , Mulitza, S. , Chiessi, C. M. , Sawakuchi, A. O. , Zabel, M. , Baker, P. A. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966 and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2017)
Origin and processing of terrestrial organic carbon in the Amazon system: lignin phenols in river, shelf, and fan sediments ,
Biogeosciences, 14 , pp. 2495-2512 .
doi:10.5194/bg-14-2495-2017 , hdl:10013/epic.51430

Article
Fischer, G. , Karstensen, J. , Romero, O. E. , Baumann, K. H. , Donner, B. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Iversen, M. ORCID: https://orcid.org/0000-0002-5287-1110, 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 , pp. 3203-3223 .
doi:10.5194/bg-13-3203-2016 , hdl:10013/epic.48559

Article
Hockun, K. , Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Ho, S. L. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Ohlendorf, C. , Zolitschka, B. , Mayr, C. , Lücke, A. and Schefuß, E. (2016)
Using distributions and stable isotopes of n-alkanes to disentangle organic matter contributions to sediments of Laguna Potrok Aike, Argentina ,
Organic Geochemistry, 102 , pp. 110-119 .
doi:10.1016/j.orggeochem.2016.10.001 , hdl:10013/epic.49113
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Article
Naafs, B. D. A. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Acton, G. , Haug, G. H. , Martínez-Garcia, A. , Pancost, R. and Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 (2012)
Strengthening of North American dust sources during the late Pliocene (2.7Ma) ,
Earth and Planetary Science Letters, 317-31 , pp. 8-19 .
doi:10.1016/j.epsl.2011.11.026 , hdl:10013/epic.38646
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Article
Naafs, B. D. A. , Hefter, J. , Ferretti, P. , Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 and Haug, G. H. (2011)
Sea surface temperatures did not control the first occurrence of Hudson Strait Heinrich Events during MIS 16 ,
Paleoceanography, 26 (4) .
doi:10.1029/2011PA002135 , hdl:10013/epic.38344
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Article
Naafs, B. D. A. , Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Khèlifi, N. , De Schepper, S. and Haug, G. H. (2010)
Late Pliocene changes in the North Atlantic Current ,
Earth and Planetary Science Letters, 298 (3), pp. 434-442 .
doi:10.1016/j.epsl.2010.08.023 , hdl:10013/epic.38277
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Article
Thiel, V. , Blumenberg, M. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Pape, T. , Pomponi, S. , Reed, J. , Reitner, J. , Wörheide, G. and Michaelis, W. (2002)
A chemical view of the most ancient metazoa - biomarker chemotaxonomy of hexactinellid sponges ,
Naturwissenschaften, 89 , pp. 60-66 .
doi:10.1007/s00114-001-0284-9 , hdl:10013/epic.15804
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Article
Mueller-Lupp, T. , Bauch, H. A. , Erlenkeuser, H. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Kassens, H. and Thiede, J. (2000)
Changes in the deposition of terrestrial organic matter on the Laptev Sea shelf during the Holocene: evidence from stable carbon isotopes ,
International Journal of Earth Sciences, 89 (3), pp. 563-568 .
doi:10.1007/s005310000128 , hdl:10013/epic.15551
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Article
Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564, Boucsein, B. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Kraus, M. , Lau, N. , Schoster, F. , Simstich, J. and Weiel, D. (2000)
Marine Geology ,
Berichte zur Polarforschung, 360 , pp. 49-69 .
hdl:10013/epic.17094

Article
Seifert, R. , Delling, N. , Richnow, H. H. , Kempe, S. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966 and Michaelis, W. (1999)
Ethylene and methane in the upper water column of the subtropical Atlantic ,
Biogeochemistry, 44 , pp. 73-91 .
hdl:10013/epic.16741
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Article
Richnow, H. H. , Seifert, R. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Link, M. , Francke, W. , Schaefer, G. and Michaelis, W. (1997)
Organic pollutants associated with macromolecular soil organic matter: Mode of binding ,
Organic Geochemistry, 26 , pp. 745-758 .
hdl:10013/epic.16740
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Article
Richnow, H. H. , Seifert, R. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Kästner, M. , Mahro, B. and Michaelis, W. (1994)
Metabolites of xenobiotica and mineral oil constituents linked to macromolecular organic matter in polluted environments ,
Organic Geochemistry, 22 , pp. 671-681 .
hdl:10013/epic.16735

Article
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Thiel, V. , Jenisch, A. , Galling, U. , Kempe, S. and Michaelis, W. (1993)
Biomarker indications for microbial contribution to Recent and Late Jurassic carbonate deposits ,
Facies, 29 , pp. 93-106 .
hdl:10013/epic.16734

Article
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Richnow, H. H. , Fischer, U. , Trendel, J. M. and Michaelis, W. (1993)
-(-)Verrucosan-2ß-ol from the phototrophic bacterium <i>Chloroflexus aurantiacus</i>: First report of a verrucosane-type diterpenoid from a prokaryote ,
Journal of General Microbiology, 139 , pp. 2757-2761 .
hdl:10013/epic.16733

Inbook

Inbook
Lamy, F. ORCID: https://orcid.org/0000-0001-5952-1765, Prange, M. , Arz, H. W. , Varma, V. , Kaiser, J. , Kilian, R. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Benthien, A. ORCID: https://orcid.org/0000-0002-9159-3109 and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2015)
The Southern Westerlies During the Holocene: Paleoenvironmental Reconstructions from Chilean Lake, Fjord, and Ocean Margin Sediments Combined with Climate Modeling / Schulz, M. and Paul, A. (editors) ,
In: Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC), Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC), Springer International Publishing .
doi:10.1007/978-3-319-00693-2_13 , hdl:10013/epic.46096

Inbook
Richnow, H. H. , Eschenbach, A. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Kästner, M. , Mahro, B. , Seifert, R. and Michaelis, W. (1996)
Bildungsmechanismen von Bound Residues bei der biologischen Behandlung kontaminierter Böden ,
In: Cuno, M. (Hrsg.) Biologische und chemische Behandlung von PAK-haltigen Böden und Abwässern, Schriftenreihe Biologische Abwasserreinigung .
hdl:10013/epic.16739

Inbook
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Hauke, V. , Richnow, H. H. and Michaelis, W. (1995)
Alkanoic subunits in sulfur-rich geomacromolecules: Information from stepwise chemical degradation and compound specific isotopic analysis ,
In: Vairavamurthy, M. (ed.) Geochemical Transformations of Sedimentary Sulfur. ACS Symposium Series, ISBN: 0-8412-3328-4 .
hdl:10013/epic.16737

Inbook
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Richnow, H. H. , Seifert, R. and Michaelis, W. (1995)
<i>n</i>-Alkanoic compounds in sulphur-rich macromolecular substances: A detailed investigation of sulphur incorporation and cross-linking ,
In: Snape, C. (ed.): Composition, Geochemistry and Conversion of Oil Shales. NATO ASI Series C: Mathematical and Physical Sciences, ISBN: 0-7923-3343-8 .
hdl:10013/epic.16736

Thesis

Thesis -Diplom
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966 (1992)
Biogeochemie rezenter Mikrobialithe ,
Diplom thesis, Universität Hamburg.
hdl:10013/epic.16771

Conference

Conference -Poster
Grotheer, H. , Kattein, L. ORCID: https://orcid.org/0000-0001-9303-1225, Höhn, M. , Schlagenhauff, S. , Gentz, T. , Hefter, J. and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2022)
En route to establishing a new UV-oxidation DO14C laboratory
hdl:10013/epic.c8a67dc0-9977-4287-99e8-394d10c73014

Conference -Poster
Grotheer, H. , Mollenhauer, G. , Schlagenhauff, S. , Höhn, M. , Hefter, J. and Gentz, T. (2022)
En route to establishing a new UV-oxidation DO14C laboratory
hdl:10013/epic.c0a41675-fab4-4619-b6d3-0652a66a5fd5

Conference -Poster
Grotheer, H. , Mollenhauer, G. , Schlagenhauff, S. , Höhn, M. , Hefter, J. and Gentz, T. (2022)
En route to establishing a new UV-oxidation DO14C laboratory
hdl:10013/epic.253e4367-0ea6-43b9-81d8-c26b6f6d1a03

Conference -Invited talk
Müller, J. ORCID: https://orcid.org/0000-0003-0724-4131, Lamping, N. ORCID: https://orcid.org/0000-0001-6258-8952, Vorrath, M. E. ORCID: https://orcid.org/0000-0001-7208-1186, Martinez-Mendez, G. , Esper, O. ORCID: https://orcid.org/0000-0002-4342-3471, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Kuhn, G. ORCID: https://orcid.org/0000-0001-6069-7485 and Hillenbrand, C. D. (2019)
Ice-shelf and sea-ice dynamics: the biomarker perspective ,
International Symposium on Antarctic Earth Sciences (ISAES), Incheon, South Korea, 22 July 2019 - 26 July 2019 .
hdl:10013/epic.e380b96d-237b-42cb-8b75-28497ed12893

Conference -Talk
Gentz, T. ORCID: https://orcid.org/0000-0001-6739-5359, Bonk, E. , Grotheer, H. ORCID: https://orcid.org/0000-0003-0207-3767, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966 and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2018)
Reasons for downtimes of the AWI-MICADAS. ,
23rd International Radiocarbon Conference, NTNU, 17 June 2018 - 22 June 2018 .
hdl:10013/epic.3501d754-30c5-4ea3-8166-a891994a4eeb
[thumbnail of ReasonsfordowntimesoftheAWIMICADAS.pdf]
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Conference -Poster
Winterfeld, M. , Meyer, V. ORCID: https://orcid.org/0000-0002-4958-5367, Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Dummann, W. , Köhler, P. ORCID: https://orcid.org/0000-0003-0904-8484, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Lembke-Jene, L. ORCID: https://orcid.org/0000-0002-6873-8533, Wacker, L. , Mc Intyre, C. , Haghipour, N. , Tiedemann, R. ORCID: https://orcid.org/0000-0001-7211-8049, Gersonde, R. and Kokfelt, U. (2017)
Mobilization of old terrestrial carbon in the North Pacific realm caused by permafrost thawing, sea-level rise and ice-sheet melting during the last deglaciation ,
International Carbon Dioxide Conference, Interlaken, Switzerland, 21 August 2017 - 25 August 2017 .
hdl:10013/epic.51816

Conference -Talk
Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Winterfeld, M. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Bodenstab, L. N. , Morgenstern, A. ORCID: https://orcid.org/0000-0002-6466-7571, Eulenburg, A. , Heim, B. ORCID: https://orcid.org/0000-0003-2614-9391, Koch, B. ORCID: https://orcid.org/0000-0002-8453-731X, Schefuß, E. , Moerth, C. M. and Rethemeyer, J. (2016)
Seasonal changes in particulate and dissolved organic matter composition and quality in the Lena River Delta ,
AGU Fall Meeting, San Francisco, 11 December 2016 - 16 December 2016 .
hdl:10013/epic.49404

Conference -Talk
Winterfeld, M. , Trojahn, S. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Pittauer, D. , Zubrzycki, S. , Han, P. , Rethemeyer, J. and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2016)
Sources of particulate organic matter discharged by the Lena River using lignin phenols ,
AGU Fall meeting, San Francisco, 11 December 2016 - 16 December 2016 .
hdl:10013/epic.49403

Conference -Talk
Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X, Winterfeld, M. , Bodenstab, L. N. , Mörth, C. M. , Koch, B. ORCID: https://orcid.org/0000-0002-8453-731X, Heim, B. ORCID: https://orcid.org/0000-0003-2614-9391, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Prokushkin, A. and Rethemeyer, J. (2016)
Arctic river organic carbon export through the ice-free season: isotopic and compositional analyses of DOM and POM collected in the Lena Delta between May and August 2014 ,
International Conference on Permafrost, Potsdam, 20 June 2016 - 24 June 2016 .
hdl:10013/epic.48234

Conference -Talk
Winterfeld, M. , Dummann, W. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Lembke-Jene, L. ORCID: https://orcid.org/0000-0002-6873-8533, Meyer, V. ORCID: https://orcid.org/0000-0002-4958-5367, McIntyre, C. , Wacker, L. , Tiedemann, R. ORCID: https://orcid.org/0000-0001-7211-8049 and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2016)
Mobilization of old carbon during deglacial permafrost retreat in East Asia ,
XI. International Conference on Permafrost (ICOP), Potsdam, Germany, 20 June 2016 - 24 June 2016 .
hdl:10013/epic.50592

Conference -Talk
Winterfeld, M. , Goñi, M. , Just, J. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Sun, S. , Han, P. and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2015)
Sources and age of terrigenous organic matter exported from the Lena River watershed, NE Siberia ,
Goldschmidt Conference, Prague, 16 August 2015 - 21 August 2015 .
hdl:10013/epic.46764
[thumbnail of Winterfeld_Goldschmidt_2015.pdf]
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Conference -Poster
Meyer, V. ORCID: https://orcid.org/0000-0002-4958-5367, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Max, L. , Tiedemann, R. ORCID: https://orcid.org/0000-0001-7211-8049 and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2015)
TEXL86 provides new insights into sea surface temperature evolution in the northwest Pacific and the Bering Sea during Heinrich Stadial 1 ,
International Meeting on Organic Geochemistry (IMOG), Prague, Czech Republic, 13 September 2015 - 18 September 2015 .
hdl:10013/epic.48685

Conference -Talk
Winterfeld, M. , Goñi, M. , Just, J. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Han, P. and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2014)
Characterization of terrestrial organic matter transported through the Lena River delta (NE Siberia) to its adjacent nearshore zone using lignin phenols, d13C, and ∆14C ,
American Geophysical Union Fall Meeting, San Francisco, CA, USA, 15 December 2014 - 19 December 2014 .
hdl:10013/epic.45662
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Conference -Poster
Meyer, V. ORCID: https://orcid.org/0000-0002-4958-5367, Tiedemann, R. ORCID: https://orcid.org/0000-0001-7211-8049, Max, L. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Schefuß, E. and Mollenhauer, G. ORCID: https://orcid.org/0000-0001-5138-564X (2014)
Deglacial to Holocene biomarker records of terrigenous input and sea surface temperature in the NW Pacific and the western Bering Sea ,
Gordon Research Conference on Organic Geochemistry, New Hampshire, USA, 28 July 2014 - 1 August 2014 .
hdl:10013/epic.48683

Conference -Talk
Naafs, B. D. A. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 and Haug, G. H. (2011)
Evidence for surface water warming in the IRD-belt during Heinrich Events ,
Interim Colloquium in Salamanca, Salamanca, Spain, September 2011 - unspecified .
hdl:10013/epic.39044
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Conference -Talk
Naafs, B. D. A. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Zhang, S. and Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 (2011)
Tracing the source of IRD in the Heinrich Layers of the North Atlantic ,
Goldschmidt conference 2011, Prague, Czech Republic, August 2011 - August 2011 .
hdl:10013/epic.39045
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Conference -Talk
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 and Sinninghe Damsté, J. S. (2008)
The Biomarker Inventory, Trace, and Source of North Atlantic Heinrich Events. ,
SCAR/IASC IPY Open Science Conference "Polar Research Arctic and Antarctic Perspectives in the International Polar Year": Abstract Volume 145-146, Saint Petersburg/Russia, July 08-11 .
hdl:10013/epic.32100

Conference -Invited talk
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564, Sinninghe Damsté, J. S. and Zhang, S. (2008)
The biomarker inventory, trace, and source of North Atlantic iceberg invasions during the past 700.000 years. ,
LECO Advanced International User Practise Workshop, Mönchengladbach/Germany, October 28-29 .
hdl:10013/epic.32101

Conference -Poster
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 and Sinninghe Damsté, J. S. (2007)
The Biomarker Inventory, Trace, and Source of Heinrich Events and Heinrich-type Layers (MIS 8-16) in the North Atlantic ,
Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract PP41C-0689. .
hdl:10013/epic.30021

Conference -Poster
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966 and Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 (2007)
The Biomarker Trace of Heinrich Events (IODP Exp. 303/306) ,
IODP/ODP and ICDP Colloquium, Potsdam/Germany, March 19-21 .
hdl:10013/epic.26601

Conference -Invited talk
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966 and Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 (2007)
The biomarker inventory, trace and source rock implications from Heinrich events (IODP Expedition 303/306) ,
Expeditions 303 & 306 2nd Post Expedition Meeting, May 14-17, Kona, Hawaii. .
hdl:10013/epic.32098
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Conference -Talk
Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564, Grützner, J. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Kanamatsu, T. and Alvarez-Zarikian, C. (2006)
IODP Expedition 306: Quaternary and Late Neogene North Atlantic Paleoceanography ,
IODP/ODP and ICDP Colloquium, Greifswald/Germany, March 27-29 .
hdl:10013/epic.24638

Conference -Invited talk
Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564, Gruetzner, J. ORCID: https://orcid.org/0000-0001-5445-2393, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Kanamatsu, T. and Alvarez-Zarikian, C. (2006)
IODP Expedition 306: Quaternary and Late Neogene North Atlantic Paleoceanography ,
IODP-ICDP Kolloquium, 27-29 March, Greifswald, Germany. .
hdl:10013/epic.25023

Conference -Poster
Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Channell, J. E. T. , Kanamatsu, T. , Sato, T. , Malone, M. and Zarikian, C. (2005)
Late Neogene-Quaternary variability in North Atlantic paleoceanography: Preliminary results from IODP Expeditions 303 and 306 ,
2nd Alfred Wegener Symposium, 30 Oct - 02 Nov, Bremerhaven, Germany, Terra Nostra .
hdl:10013/epic.24202

Conference -Poster
Benthien, A. ORCID: https://orcid.org/0000-0002-9159-3109, Riebesell, U. , Engel, A. , Zondervan, I. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Delille, B. , Harlay, J. and Jacquet, S. (2004)
Alkenone carbon isotopes during a bloom of Emiliania huxleyi: Effects of CO2 concentration and production. ,
8th International Conference on Paleoceanography (ICP VIII), 5-10 Sept., Biarritz, France .
hdl:10013/epic.22269

Conference -Poster
Kierdorf, C. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966 and Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564 (2004)
Characterisation of the organic matter in surface sediments from the East Greenland continental margin ,
Bjerknes Centenary 2004, 01-03 September 2004, Bergen, Norway. .
hdl:10013/epic.21757
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Conference -Poster
Benthien, A. ORCID: https://orcid.org/0000-0002-9159-3109, Zondervan, I. , Riebesell, U. , Engel, A. , Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Delille, B. , Harlay, J. and Jacquet, S. (2003)
Alkenone carbon isotopes during a bloom of Emiliania huxleyi: Effects of CO2 concentration and production. ,
EGS-AGU-EUG Joint Assembly, 7-11 April, Nice, France .
hdl:10013/epic.22280

Conference -Invited talk
Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Hauke, V. , Steiner, U. and Michaelis, W. (1996)
Molecular characterization of organic matter in methane producing areas of the Baltic Sea ,
In: Giere, O. & Fischer, U. (eds.): Abstracts and Program of the Workshop on Processes and Structures in Marine Methane and Sulfide Biotopes .
hdl:10013/epic.16738

Field Report

Field Report
Stein, R. ORCID: https://orcid.org/0000-0002-4453-9564, Drachev, S. , Fahl, K. ORCID: https://orcid.org/0000-0001-9317-4656, Hefter, J. ORCID: https://orcid.org/0000-0002-5823-1966, Kassens, H. , Kokina, N. , Matthießen, J. ORCID: https://orcid.org/0000-0002-6952-2494, Müller, C. , Musatov, E. , Mutterlose, J. , Nörgaard-Petersen, N. , Polozek, K. , Shevchenko, V. and Usbeck, R. (1999)
Marine Geological Investigations. - In Jokat, W. (ed.), ARCTIC ´98: The Expedition ARK-XIV/1a of RV "Polarstern" in 1998. ,
[Field Report]
hdl:10013/epic.19946

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