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Article
Dumont, M. , Pichevin, L. , Geibert, W. ![]() The nature of deep overturning and reconfigurations of the silicon cycle across the last deglaciation ,
Nature Communications,
11
(1)
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doi:https://doi.org/10.1038/s41467-020-15101-6
, hdl:10013/epic.94c53ea8-4d00-4e92-aff5-2a3a600d4370
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Article
Pichevin, L. E. , Ganeshram, R. S. , Geibert, W. ![]() Silica burial enhanced by iron limitation in oceanic upwelling margins ,
Nature Geoscience,
7
(7),
pp. 541-546
.
doi:https://doi.org/10.1038/ngeo2181
, hdl:10013/epic.45811
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Article
Kretschmer, S. , Geibert, W. ![]() ![]() ![]() Fractionation of 230Th, 231Pa, and 10Be induced by particle size and composition within an opal-rich sediment of the Atlantic Southern Ocean ,
Geochimica et Cosmochimica Acta,
75
(22),
pp. 6971-6987
.
doi:https://doi.org/10.1016/j.gca.2011.09.012
, hdl:10013/epic.39127
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Article
Schmidt, C. , Hanfland, C. , Regnier, P. , van Cappellen, P. , Schlüter, M. ![]() ![]() ![]() 228Ra, 226Ra, 224Ra and 223Ra in potential sources and sinks of land-derived material in the German Bight of the North Sea: implications for the use of radium as a tracer ,
Geo Marine Letters
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doi:https://doi.org/10.1007/s00367-011-0231-5
, hdl:10013/epic.36927
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Article
Lechtenfeld, O. J. , Koch, B. P. ![]() ![]() Inorganics in organics: quantification of organic phosphorus and sulfur and trace element speciation in natural organic matter using HPLC-ICP-MS ,
Analytical Chemistry,
83
,
pp. 8968-8974
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doi:https://doi.org/10.1021/ac201765a
, hdl:10013/epic.38662
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Article
Kretschmer, S. , Geibert, W. ![]() ![]() ![]() Grain size effects on 230Thxs inventories in opal-rich and carbonate-rich marine sediments ,
Earth and Planetary Science Letters.
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doi:https://doi.org/10.1016/j.epsl.2010.03.021
, hdl:10013/epic.35388
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Article
Geibert, W. ![]() ![]() ![]() High primary productivity in an ice melting hot spot at the eastern boundary of the Weddell Gyre ,
Global Biogeochemical Cycles, 24, GB3007.
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doi:https://doi.org/10.1029/2009GB003657
, hdl:10013/epic.35579
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Article
Martinez-Garcia, A. , Rosell-Melé, A. , Geibert, W. ![]() Links between iron supply, marine productivity, sea surface temperature and CO2 over the last 1.1 Ma ,
Paleoceanography 24, PA1207
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doi:https://doi.org/10.1029/2008PA001657
, hdl:10013/epic.31919
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Article
Geibert, W. ![]() ![]() Progress in the Determination of 227Ac in Sea Water ,
Marine Chemistry,
109
(3-4),
pp. 238-249
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doi:https://doi.org/10.1016/j.marchem.2007.07.012
, hdl:10013/epic.39142
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Article
Geibert, W. ![]() The release of dissolved actinium to the ocean: a global comparison of different end-members ,
Marine Chemistry.,
109
(3-4),
pp. 409-420
.
doi:https://doi.org/10.1016/j.marchem.2007.07.005
, hdl:10013/epic.39143
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Article
Bakker, D. C. E. , Hoppema, M. ![]() ![]() A rapid transition from ice covered CO2-rich waters to a biologically mediated CO2 sink in the eastern Weddell Gyre ,
Biogeosciences Discussions, 51235.,
1205
.
hdl:10013/epic.34108
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Article
Bakker, D. C. E. , Hoppema, M. ![]() ![]() A rapid transition from ice covered CO2rich waters to a biologically mediated CO2 sink in the eastern Weddell Gyre ,
Biogeosciences,
5
,
pp. 1373-1386
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hdl:10013/epic.31200
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Article
Francois, R. , Frank, M. , Rutgers v. d. Loeff, M. ![]() ![]() Comment on Do geochemical estimates of sediment focusing pass the sediment test in the equatorial Pacific? by Lyle et al. ,
Paleoceanography, 22, PA1216
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doi:https://doi.org/10.1029/2005PA001235
, hdl:10013/epic.25698
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Article
Geibert, W. ![]() ![]() ![]() Quantifying the opal belt in the Atlantic and southeast Pacific sector of the Southern Ocean by means of 230Th normalization ,
Global biogeochemical cycles, 19, GB4001
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doi:https://doi.org/10.1029/2005GB002465
, hdl:10013/epic.22294
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Article
Geibert, W. ![]() Book review: Sedimentary processes - quantification using radionuclides by J. Carroll and I. Lerche ,
Isotopes in environmental and health studies.
.
hdl:10013/epic.21110
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Article
Geibert, W. ![]() The adsorption of Thorium and Protactinium onto different particle types: Experimental Findings ,
Geochimica et cosmochimica acta,
68
(7),
pp. 1489-1501
.
doi:https://doi.org/10.1016/j.gca.2003.10.011
, hdl:10013/epic.16072
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Article
Geibert, W. ![]() Actinium-227 als Tracer für Advektion und Mischung in der Tiefsee ,
Mitteilungen der Deutschen Gesellschaft für Meeresforschung 1/2002,
pp. 3-5
.
hdl:10013/epic.16168
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Article
Geibert, W. ![]() ![]() Actinium-227 as a Deep-Sea Tracer: Sources, Distribution and Applications ,
Earth and planetary science letters,
198
(1),
pp. 147-165
.
doi:https://doi.org/10.1016/S0012-821X(02)00512-5
, hdl:10013/epic.15108
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Article
Walter, H. J. , Geibert, W. ![]() ![]() Shallow vs deep-water scavenging of 231Pa and 230Th in radionuclide enriched waters of the Atlantic sector of the Southern Ocean ,
Deep-Sea Research I,
48
(2),
pp. 471-493
.
doi:https://doi.org/10.1016/S0967-0637(00)00046-7
, hdl:10013/epic.13838
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Inbook
Rutgers v. d. Loeff, M. ![]() ![]() U- and Th-Series Nuclides as Tracers of Particle Dynamics, Scavenging and Biogeochemical Cycles in the Oceans ,
In: RADIOACTIVITY IN THE ENVIRONMENT ; 13,
U-Th series radionuclides in aquatic systems, eds. S. Krishnaswami and J. K. Cochran, Elsevier.,
Amsterdam,
Elsevier,
42 p.,
ISBN: 978-0-08-045012-4
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doi:https://doi.org/10.1016/S1569-4860(07)00007-1
, hdl:10013/epic.32389
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Inbook
Hanfland, C. , Geibert, W. ![]() ![]() ![]() Atom-Uhren im Südlichen Ozean ,
Polarstern : 25 Jahre Forschung in Arktis und Antarktis / Dieter K. Fütterer; Eberhard Fahrbach. Bielefeld : Delius Klasing
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hdl:10013/epic.28662
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Inbook
Rutgers v. d. Loeff, M. ![]() ![]() ![]() Radionuclides as tracers for particle flux and transport of water masses in the Atlantic sector of the Southern Ocean ,
The South Atlantic in the Late Quaternary - Reconstruction of Material Budget and Current systems. Wefer, G., Ratmeyer, V. and Meinecke, G. (Eds.), Springer-Verlag : Berlin, Heidelberg, New York, Tokyo:,
ISBN: 3-540-21028-8
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hdl:10013/epic.15232
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Thesis
-PhD
Geibert, W. ![]() Actinium-227 als Tracer für Advektion und Mischung in der Tiefsee ,
PhD thesis,
Universität Bremen.
hdl:10013/epic.17847
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Conference
-Talk
Geibert, W. ![]() Actinium-227 in the Atlantic Sector of the Southern Ocean: New results from Bonus-Goodhope and UK Geotraces ,
Goldschmidt Conference, August 14-19, 2011, Prague, Czech Republic.
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hdl:10013/epic.37504
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Conference
-Poster
Kretschmer, S. , Kusch, S. , Geibert, W. ![]() ![]() ![]() Distribution of 230Thxs and 231Paxs in sediment particle classes of opal-rich and carbonate-rich sediments ,
European Geoscience Union, General Assembly 2009.
.
hdl:10013/epic.32543
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Conference
-Talk
Hanfland, C. , Geibert, W. ![]() Soluble radionuclides as tracers for circulation and mixing in the Southern Ocean ,
IPY BONUS-Goodhope first post-cruise meeting, January 23-24, 2009, Villefranche-sur-Mer, France.
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hdl:10013/epic.32014
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Conference
-Talk
Bakker, D. C. E. , Hoppema, M. ![]() ![]() A rapid transition from ice covered CO2-rich waters to a biologically mediated CO2 sink in the eastern Weddell Gyre ,
8th International Carbon Dioxide Conference, 13-19 September 2009, Jena, Germany.
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hdl:10013/epic.33237
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Conference
-Talk
Kretschmer, S. , Geibert, W. ![]() ![]() ![]() Distribution of 230Th, 10Be and 231Pa in sediment particle classes ,
18. Annual V.M. Goldschmidt Conference, July 13th-18th 2008, Vancouver, Canada.
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hdl:10013/epic.30921
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Conference
-Invited talk
Bakker, D. C. E. , Hoppema, M. ![]() ![]() A rapid Transition from ice covered CO2rich waters to a biologically mediated CO2 Sink in the eastern Weddell Gyre ,
EGU General Assembly, WienApril 2008.
.
hdl:10013/epic.30380
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Conference
-Talk
Bakker, D. C. E. , Hoppema, M. ![]() ![]() A rapid transition from ice covered CO2-rich waters to a biologically mediated CO2 Sink in the eastern Weddell Gyre ,
13th Biennial Challenger Conference for Marine Science, Bangor UniversitySeptember 2008.
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hdl:10013/epic.31020
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Conference
-Poster
Kretschmer, S. , Geibert, W. ![]() ![]() ![]() 230Thxs budgets in size-fractionated calcareous near-surface sediments from Walvis Ridge ,
International Conference and 97th Annual Meeting of the Geologische Vereinigung e.V. (GV) The Oceans in the Earth System. Bremen, Germany October 1-5
.
hdl:10013/epic.30923
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Conference
-Poster
Bakker, D. C. E. , Hoppema, M. ![]() ![]() Rapid transition from ice covered CO2-rich waters to a biologically mediated sink in the eastern Weddell Gyre ,
IP CarboOcean annual meeting, 4-7 December 2007, Bremen, Germany.
.
hdl:10013/epic.28605
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Conference
-Poster
Hoppema, M. ![]() ![]() Strong fCO2 undersaturation after ice melt in the eastern Weddell Gyre ,
Surface Ocean CO2 Variability and Vulnerabilities workshop, 11-14 April 2007, Paris, France.
.
hdl:10013/epic.26528
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Conference
-Talk
Geibert, W. ![]() 227Ac in the marine environment ,
Overview Lecture, 1st workshop on measurements of short-lived Radium isotopes using the RaDeCC delayed coincidence system, Marine Environment Laboratory of the IAEA, 2-6 Oct, Monaco.
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hdl:10013/epic.32593
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Conference
-Conference paper
Hanfland, C. , Geibert, W. ![]() Tracing marine processes in the Southern Ocean by means of naturally occurring radionuclides ,
Antarctica : contributions to global earth sciences ; proceedings of the IX International Symposium of Antarctic Earth Sciences PotsdamHrsg. Dieter Fütterer; Detlef Damaske; Georg Kleinschmidt ... Berlin [u.a.] : Springer
.
hdl:10013/epic.31980
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Conference
-Invited talk
Geibert, W. ![]() ![]() The flux of particles to the seafloor- clues from Thorium isotopes ,
Invited lecture, colloquium at the Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, 7 Nov., Bellaterra, Spain.
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hdl:10013/epic.32594
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Conference
-Poster
Geibert, W. ![]() ![]() ![]() Biogenic silica accumulation rates in surface sediments of the Southern Ocean corrected for sediment redistribution ,
EGU General Assembly, 25-29 Apr., Vienna, Austria.
.
hdl:10013/epic.23214
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Conference
-Invited talk
Geibert, W. ![]() Die Anwendung natürlicher Radionuklide zur Bestimmung von Stoffflüssen im marinen Milieu ,
Vortrag im Rahmen des ICBM-Kolloquiums, Oldenburg.5.2005.
.
hdl:10013/epic.23152
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Conference
-Conference paper
Geibert, W. ![]() ![]() ![]() Silica accumulation rates in surface sediments of the Southern Ocean corrected for sediment redistribution ,
presentation at EGU Wien.-29. April 2005.
.
hdl:10013/epic.22310
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Conference
-Poster
Hanfland, C. , Friedrich, J. , Geibert, W. ![]() ![]() Ziele und Vorbereitungen des deutschen Beitrags zum internationalen GEOTRACES Programm ,
22. Int. Polartagung, 18.-24.9.2005, Jena, Deutschland.
.
hdl:10013/epic.22910
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Conference
-Talk
Geibert, W. ![]() The Eastern Weddell Gyre- an overlooked high productivity region ,
Talk at the Open Science Conference of the XXVIII SCAR Meeting, 25-31 July 2004, Bremen, Germany (Terra Nostra Abstract Volume of XXVIII SCAR Meeting).
.
hdl:10013/epic.21476
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Conference
-Talk
Geibert, W. ![]() Ocean circulation and bioproductivity in the Weddell Gyre: geochemical findings ,
Talk at the 13th annual V.M. Goldschmidt Conference, Copenhagen, Denmark, June 5-11
.
hdl:10013/epic.21111
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Conference
-Conference paper
Geibert, W. ![]() Ocean circulation and bioproductivity in the Weddell Gyre: geochemical findings ,
Geochimica et cosmochimica acta, 68(11S), A331
.
hdl:10013/epic.21112
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Conference
-Talk
Geibert, W. ![]() ![]() Actinium-227 as a tracer for diapycnal mixing and deep upwelling ,
Keynote Lecture, 13th Annual Goldschmidt Conference, Kurashiki, Japan, Sept. 7-12
.
hdl:10013/epic.19618
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Conference
-Conference paper
Geibert, W. ![]() ![]() Actinium-227 as a tracer for diapycnal mixing and deep upwelling ,
Geochimica et cosmochimica acta, 67(18,S1), A118
.
hdl:10013/epic.19848
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Conference
-Talk
Geibert, W. ![]() Chlorophyll and other indicators of productivity in the Eastern Weddell Gyre between 0°E and 23°E-Preliminary results of Polarstern Expedition ANT XX/2, Synpart project ,
EGU-AGU-EGS Joint Assembly, Nice, FranceApril.
.
hdl:10013/epic.19172
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Conference
-Talk
Hanfland, C. and Geibert, W. ![]() Natural radioactive tracers between Africa and Antarctica: preliminary results from POLARSTERN expedition ANT XX/2 ,
9th International Symposium on Antarctic Earth Sciences, 7.-12.9.2003, Potsdam, Germany.
.
hdl:10013/epic.19778
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Conference
-Talk
Gersonde, R. , Cortese, G. , Geibert, W. ![]() ![]() Plio-Pleistocene biogenic opal deposition and its relation to global climate evolution ,
Chapman Conference On the role of diatom production and Si flux and burial in the regulation of global cycles, 22-26 Sept., Paroikia, Paros, Greece.
.
hdl:10013/epic.19813
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Conference
-Poster
Hanfland, C. , Geibert, W. ![]() ![]() The application of natural radionuclides in marine issues in the Southern Ocean ,
9th International Symposium on Antarctic Earth Sciences, 7.-12.9.2003, Potsdam, Germany.
.
hdl:10013/epic.19779
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Conference
-Poster
Hanfland, C. , Geibert, W. ![]() ![]() Die Anwendung natürlicher Radionuklide auf marine Fragestellungen in den Polargebieten ,
Schriftenreihe der Deutschen Geologischen Gesellschaft
.
hdl:10013/epic.18302
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Conference
-Poster
Geibert, W. ![]() The adsorption of Th and Pa on different particle types in dependence of the provenance of natural seawater ,
Poster, 12th Annual Goldschmidt Conference, Davos, Switzerland, August 18-23
.
hdl:10013/epic.19846
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Conference
-Conference paper
Geibert, W. ![]() The adsorption of Th and Pa on different particle types in dependence of the provenance of natural seawater ,
Geochimica et cosmochimica acta, 66, 15A, A269.
.
hdl:10013/epic.19847
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Conference
-Talk
Hanfland, C. , Walter, H. J. , Geibert, W. ![]() ![]() Erfassung möglicher Eintragswege für Eisen in die produktiven Regionen des Südatlantiks mittels verschiedener geochemischer Tracer ,
20. Internationale Polartagung, 26.-30.3.2001, Dresden.
.
hdl:10013/epic.18303
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Conference
-Poster
Hanfland, C. , Walter, H. J. , Geibert, W. ![]() ![]() 228-Ra: a natural tracer for shelfwater input as a possible transport path of iron into the Southern Ocean ,
Southern Ocean-JGOFS Symposium, 8.-12.7.2000, Brest.
.
hdl:10013/epic.18305
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Conference
-Poster
Geibert, W. ![]() ![]() Is the "Deep Upwelling" south of the Antarctic Polar Front fast enough to limit vertical particle fluxes? Vertical water velocities estimated from the distribution of Actinium-227. ,
EOS (suppl.)
.
hdl:10013/epic.18399
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Conference
-Talk
Geibert, W. ![]() Natürliche Radioaktivität im Meerwasser - Der lange Weg von der Wasserprobe bis zum wissenschaftlichen Ergebnis ,
Öffentlicher Abendvortrag innerhalb der Reihe "Das AWI stellt sich vor".10.2000.
.
hdl:10013/epic.18378
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Conference
-Poster
Walter, H. J. , Geibert, W. ![]() ![]() Source regions and transport paths of iron into South Atlantic surface waters: Significance of aeolian input? ,
EOS, Transactions AGU
.
hdl:10013/epic.18309
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Conference
-Talk
Geibert, W. ![]() ![]() Möglichkeiten und Grenzen der 230Th-Normierung zur Rekonstruktion von Paläoflüssen im Atlantischen Sektor des Südozeans ,
Terra Nostra
.
hdl:10013/epic.18401
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Conference
-Conference paper
Geibert, W. ![]() ![]() Surface concentrations of 228Th, 230Th and 231Pa in the Atlantic Sector of the Southern Ocean-the effects on paleoenvironmental applications ,
Mineralogical magazineA
.
hdl:10013/epic.18400
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"Berichte zur Polar- und Meeresforschung"
PhD
Geibert, W. ![]() Actinium-227 als Tracer für Advektion und Mischung in der Tiefsee = Actinium-227 as a tracer for advection and mixing in the deep-sea ,
Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research),
Bremerhaven,
Alfred Wegener Institute for Polar and Marine Research,
385
,
112 p.
.
doi:https://doi.org/10.2312/BzPM_0385_2001
, hdl:10013/epic.10389
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