Dr. Antje Wegwerth

Position: PostDoc

Reconstruction of the palaeoclimate and environmental conditions of Neogene and Quaternary marine and limnic systems (Black Sea, South Pacific Ocean) on glacial-interglacial to millennial timescales by using organic and inorganic geochemical proxies, and carbonate shell geochemistry.

Projects

ClimPact: "Glazial-Interglaziale Klimadynamik im subantarktischen östlichen Südpazifik seit dem späten Miozän - hochauflösende Temperaturrekonstruktionen während der letzten 8 Mio Jahre" https://www.iow.de/projekt/388/climpact.html

SESPOD: "Spätmiozäne bis pleistozäne Dynamik des Oberflächenozeans im subantarktischen östlichen Südpazifik (IODP Expedition 383)" https://www.io-warnemuende.de/projekt/283/sespod_-_arz.html

BlackPearl: "The Black Sea Palaeoclimate and Environment during the penultimate glacial - reconstructions from lacustrine sediments (Paläoklima und -umwelt des Schwarzen Meeres während des vorletzten Glazials - Rekonstruktionen an lakustrinen Sedimenten)" http://www.io-warnemuende.de/projekt/162/blackpearl.html

DynNAP: “Dynamics of Mid-latitude/Mediterranean climate during the last 150 ka: Black Sea/Northern Anatolian Paleoenvironmental Reconstructions” als Teil des Schwerpunktprogramms 1266 "Integrierte Analyse zwischeneiszeitlicher Klimadynamik (INTERDYNAMIK)" https://www.iow.de/projekt/61/dyn_nap.html

Publications

• Rigalleau, V., Arz, H. W., Beech, N., Hagemann, J. R., Ruggieri, N., Wegwerth, A., Sadatzki, H., Illing, M. T., Moy, C. M., Winckler, G., & Lamy, F.. Oceanic forcing of Patagonian ice sheet variability over the last eight glacial cycles. Communications Earth & Environment (2026). https://doi.org/10.1038/s43247-026-03387-1

• Liu, J., N. R. Nowaczyk, A. Wegwerth, Y. Zhong, Q. Liu and H. W. Arz . Greigite-bearing nodules in the last glacial Black Sea sediments: rapid post-depositional formation and carbon-preservation implications. Geophys. J. Int. (2026), https://doi.org/10.1093/gji/ggag047

• Wegwerth, A.,. Arz, H., Kaiser, J., Winckler, G., Lembke-Jene, L., Rigalleau, V., Ruggieri, N., Sadatzki, H., Lamy, F.. South Pacific sea surface temperature and global ocean circulation changes since the late Miocene. Nature Communications (2025) 16, 6593 https://www.nature.com/articles/s41467-025-62037-w

• Rigalleau, V., Lamy, F., Ruggieri, N., Sadatzki, H., Arz, H.W., Barker, S., Lembke-Jene, L., Wegwerth, A., Knorr, G., Venancio, I.M., Pinho, T.M.L., Tiedemann, R., Winckler, G.. 790,000 years of millennial-scale Cape Horn Current variability and interhemispheric linkages. Nature Communications (2025) 16, 3105. https://doi.org/10.1038/s41467-025-58458-2

• Dellwig, O., Köhler, A., Kurzweil, F., Schönke, M., Wegwerth, A., Krüger, S., Mars, R., Plewe, S., Schuffenhauer, I., Zhang, R., Frazão, H.C., Waniek, J.J., Arz, H.W. Behaviors of redox-sensitive tungsten and molybdenum in the northern South China Sea: From the Pearl River to the continental slope. Estuarine, Coastal and Shelf Science (2023) 292, 108485. https://doi.org/10.1016/j.ecss.2023.108485

• Roué, L., Kurzweil, F., Wille, M., Wegwerth, A., Dellwig, O., Münker, C., Schoenberg, R. Stable W and Mo isotopic evidence for increasing redox-potentials from the Paleoarchean towards the Paleoproterozoic deep ocean. Geochimica et Cosmochimica Acta (2021) 309, 366-387. https://doi.org/10.1016/j.gca.2021.05.013

• Dellwig, O., Wegwerth, A., Arz, H.W. Anatomy of the Major Baltic Inflow in 2014: Impact of manganese and iron shuttling on phosphorus and trace metals in the Gotland Basin, Baltic Sea. Continental Shelf Research 223, 104449 (2021). https://doi.org/10.1016/j.csr.2021.104449

• Wegwerth, A., Plessen, B., Kleinhanns, I.C., Arz, H. W. Black Sea hydroclimate and coupled hydrology was strongly controlled by high-latitude glacial climate dynamics. Communications Earth and Environment 2, 63 (2021). https://doi.org/10.1038/s43247-021-00129-3

• Nowaczyk, N. R., Jiabo, L., Plessen, B., Wegwerth, A., Arz, H. W. A high‐resolution paleosecular variation record for marine isotope stage 6 from Southeastern Black Sea sediments. Journal of Geophysical Research: Solid Earth (2021), 126, e2020JB021350. https://doi.org/10.1029/2020JB021350

• Czymzik, M., Nowaczyk, N. R., Dellwig, O., Wegwerth, A., Muscheler, R., Christl, M.,  Arz, H. W. Lagged atmospheric circulation response in the Black Sea region to Greenland Interstadial 10. Proceedings of the National Academy of Sciences (2020) 117, 46, 28649-28654 https://doi.org/10.1073/pnas.2005520117

• Wegwerth, A., Kaiser, J., Dellwig, O., Arz, H. W. Impact of Eurasian Ice Sheet and North Atlantic climate dynamics on Black Sea temperature variability during the penultimate glacial (MIS 6, 130‐184 ka BP). Paleoceanography and Paleoclimatology (2020) 35, e2020PA003882. https://doi.org/10.1029/2020PA003882

• Brüske, A., Weyer, S., Zhao, M.Y., Planavsky, N.J., Wegwerth, A., Neubert, N., Dellwig, O., Lau, K.V., Lyons, T.W. Correlated molybdenum and uranium isotope signatures in modern anoxic sediments: implications for their use as paleo-redox proxy. Geochimica et Cosmochimica Acta (2020) 270, 449-474 https://doi.org/10.1016/j.gca.2019.11.031

• Wegwerth, A., Dellwig, O., Wulf, S., Plessen, B., Kleinhanns, I.C., Nowaczyk, N.R., Jiabo, L., Arz, H.W. Major hydrological shifts in the Black Sea “Lake” in response to ice sheet collapses during MIS 6 (130-184 ka BP). Quaternary Science Reviews (2019) 219, 126-144 https://doi.org/10.1016/j.quascirev.2019.07.008

• Dellwig, O., Wegwerth, A., Schnetger, B., Schulz, H., Arz, H.W. Dissimilar behaviors of the geochemical twins W and Mo in hypoxic-euxinic marine basins. Earth-Science Reviews (2019) 193, 1-23 https://doi.org/10.1016/j.earscirev.2019.03.017

• Häusler, K., Dellwig, O., Schnetger, B., Feldens, P., Leipe, T., Moros, M., Pollehne, F., Schönke, M., Wegwerth, A., Arz, H.W. Massive Mn carbonate formation in the Landsort Deep (Baltic Sea): Hydrographic conditions, temporal succession, and Mn budget calculations. Marine Geology (2018) 395, 260-270 https://doi.org/10.1016/j.margeo.2017.10.010

• Wegwerth, A., Eckert, S., Dellwig, O., Schnetger, B., Severmann, S., Weyer, S., Brüske, A., Kaiser, J., Köster, J., Arz, H.W., Brumsack, H.-J. Redox evolution during Eemian and Holocene sapropel formation in the Black Sea. Palaeogeography, Palaeoclimatology, Palaeoecology (2018) 489, 249-260 https://doi.org/10.1016/j.palaeo.2017.10.014

• Wegwerth, A., Kaiser, J., Dellwig, O., Shumilovskikh, L.S., Nowaczyk, N.R., Arz, H.W. Northern hemisphere climate control on the environmental dynamics in the glacial Black Sea “Lake”. Quaternary Science Reviews (2016) 135, 41-53 http://dx.doi.org/10.1016/j.quascirev.2016.01.016

• Wegwerth, A., Ganopolski, A., Ménot, G., Kaiser, J., Dellwig, O., Bard, E., Lamy, F., and Arz, H.W. Black Sea temperature response to glacial millennial-scale climate variability. Geophysical Research Letters (2015) 42, 19, 8147-8154                                                  http://dx.doi.org/10.1002/2015GL065499

• Arz, H. W., Shumilovskikh, L. S., Wegwerth, A., Fleitmann, D., Behling, H. Environmental and Climate Dynamics During the Last Two Glacial Terminations and Interglacials in the Black Sea/Northern Anatolian Region. Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC). M. Schulz and A. Paul, Springer International Publishing, SpringerBriefs in Earth System Sciences, (2015), 121-126 http://dx.doi.org/10.1007/978-3-319-00693-2_20

• Wegwerth, A., Dellwig, O., Kaiser, J., Ménot, G., Bard, E., Shumilovskikh, L., Schnetger, B., Kleinhanns, I.C., Wille, M., and Arz, H.W. Meltwater events and the Mediterranean reconnection at the Saalian-Eemian transition in the Black Sea. Earth and Planetary Science Letters (2014), 404, 124-135 http://dx.doi.org/10.1016/j.epsl.2014.07.030

• Shumilovskikh, L.S., Fleitmann, D., Nowaczyk, N., Behling, H., Marret, F., Wegwerth, A., Arz, H.W. Orbital- and millennial-scale environmental changes between 64 and 20 ka BP recorded in Black Sea sediments. Climate of the Past (2014), 10, 939-954 http://www.clim-past.net/10/939/2014/cp-10-939-2014.html

• Shumilovskikh, L. S., Arz, H.W., Wegwerth, A., Fleitmann, D., Marret, F., Nowaczyk, N., Tarasov, P., Behling, H., Vegetation and environmental changes in Northern Anatolia between 134 and 119 ka recorded in Black Sea sediments, Quaternary Research (2013), 80, 3, 349-360 http://dx.doi.org/10.1016/j.yqres.2013.07.005

CV

since 2016 PostDoc at IOW

2011 - 2015: PhD student within the framework of the project DynNAP: “Dynamics of Mid-latitude/Mediterranean climate during the last 150 ka: Black Sea/Northern Anatolian Paleoenvironmental Reconstructions” as part of the DFG Priority Programme 1266 "Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC)" https://www.iow.de/projekt/61/dyn_nap.html

2011: Diploma-Mapping Thesis „Fluxes of dissolved manganese and sulphate across the sediment-water interface of the Baltic Sea“ (IOW / FU Berlin)

2010: Diploma Thesis “Petrography, Biogeochemistry, and Stable Isotope Signatures of Early Cambrian Phosphorites, Meishucun Section, South China“ (FU Berlin/IOW) within DFG Forschergruppe 736 “The Precambrian-Cambrian Ecosphere (R)evolution: Insights from Chinese microcontinents” http://www.geo.fu-berlin.de/en/v/fg736/

2003 - 2011: Study of Geology-Palaeontology at Freie Universität Berlin

Research cruises

RV “Elisabeth Mann Borgese” 2023: EMB 324 BALTRACE, Baltic Sea

RV “Sonne“ 2023: SO296/2 MAPUCHE, Chile, SE Pacific

RV “Sonne“ 2022: SO290 PaläoTaNZ, Tasman Sea

RV “Elisabeth Mann Borgese” 2018: EMB 201 BALTRAP, Central Baltic Sea

RV "Meteor" 2017: M142, Black Sea

RV "Maria S. Merian" 2013: MSM33, Black Sea

RV “Elisabeth Mann Borgese” 2012: 06EZ1215-REDOX, Central Baltic Sea

RV “Südfall” 2009: North Sea

RV “Prof. A. Penck” 2008: 07/08/24 Central Baltic Sea

RV “Prof. A. Penck” 2008: 07/08/14 Central Baltic Sea

Other research trips

Biomarker studies at CEREGE (Centre Européen de Recherche et d’Enseignement des Géosciences de l’Environnement, Géochimie et géochronologie, Aix-Marseille University, France) in June - July 2012 and September - October 2013