Ines Voigt

The PhD project is part of the research area ‘Sediment Dynamics’ (SD) in the project SD3 ‘Slope architecture and evolution of sedimentary regimes‘, in the group “Sedimentology - Paleoceanography” of the Department of Geosciences, University of Bremen.

The study area of this PhD project is the Argentine/Uruguay margin which forms a very contrasting oceanographic setting that is characterized by (1) the huge sediment discharge of the Rio de la Plata that drains the second largest basin in South America, (2) forming a key location in the intermediate and deep-water global conveyor belt, with both having a major impact on the overall architectural evolution of this margin segment, and (3) by the Malvinas-Brazil Current confluence (BMC), a prominent feature in global surface water circulation that emerges from the encounter of southward-flowing Brazil Current and northward-flowing Malvinas-(Falkland) Current. The Mar del Plata Canyon is located at the continental margin off Argentina/Uruguay and is incorporated into a significant contourite depositional system (CDS) that is governed by an interaction of down- and alongslope sedimentation processes. Both types of dynamic processes control depositional and erosive features along the Argentina/Uruguay margin and have profound effects on the overall morphological evolution. The scientific focus of this PhD project is to understand the sediment transport processes in the Mar del Plata Canyon, with special emphasis on the interaction of downslope (gravity-driven) and alongslope (current-driven) processes and to link them to paleoclimate and/or paleoceanographic variations.

To better understand the sedimentary processes in the canyon, the following investigations are planed:

• A wide spectrum of standard sedimentological techniques, in particular grain size analyses will be used to define the different sedimentary facies and to reconstruct their depositional processes of transport
• A detailed analysis of the sediment composition, including XRF-scanning element data will help to identify the climate signals and the sediment source region
• X-ray diffraction analysis (bulk and/or clay mineralogy) for provenance analysis of the sediments and for paleoclimate/paleoceanographic reconstruction
• Define planktonic/benthic foraminifera assemblages to record changes of surface- and deep ocean circulation pattern

Published articles

Cruise report

Poster presentations

Voigt, I., Borchers, A., Frederichs, th., Esper, O., Gersonde, R., Diekmann, B., (in prep.). Antarctic bottom-water dynamics in the Indian sector of the Antarctic Ocean since the last 140 000 years

Borchers, A., Voigt, I., Kuhn, G., Diekmann, B. (2010). Mineralogy of sediments from the Prydz Bay-Kerguelen region - relation to modern depositional environments, Antarctic Science (in press.)

Borchers, A., Dietze, E., Kuhn, G., Esper, O., Voigt, I., Hartmann, K., Diekmann, B. (2010). Ice dynamics and bottom-water formation due to Cape Darnley polynya activity in the Burton Basin, East Antarctica, since the last glacial (in press).

Voigt, I. (2009). Spätquartäre Bodenwasserdynamik im Antarktischen Ozean südöstlich des Kerguelen-Plateaus' (Sedimentkern PS69/899-2)., Diploma thesis, University of Potsdam.

Diekmann, B., Bardenhagen, J., Borchers, A., Daniel, K., Eulenburg, A., De la Rocha, C., Grobe, H., Kopsch, C., Kretschmer, S., Lensch, N., Sperlich, P. & Voigt, I., (2008). Marine Geology in the Prydz Bay - Kerguelen Plateau Area. In: Hubberten, H.-W. (Eds.). The Expedition of the Research Vessel "Polarstern" to the Antarctic in 2007
(ANT-XXIII/9). Berichte zur Polarforschung, 583, 37-53, Bremerhaven.

Voigt, I., Borchers, A., Esper, O., Frederichs, T., Gersonde, R., Kuhn, G., Kretschmer, S., Mollenhauer, G., Diekmann, B.(2010). Antarctic Bottom Water dynamics in the Indian sector of the Antarctic Ocean over the last 140000 years, International Congress, Deep-Water Circulation: Processes and Products, 16 -18. 06, 2010, Baiona/Spain.

Borchers, A., Voigt, I., Hartmann, K., Kuhn, G., Diekmann, B.(2010). Bottom-water dynamics during the Holocene and the last interglacial stage (MIS 5) and its relation to sea-ice formation in East Antarctic shelf areas, IPY Oslo Science Conference, 8. - 12.06.2010, Oslo/Norway.

Borchers, A., Voigt, I., Kuhn, G., Diekmann, B.(2010). Provenance of modern glaciomarine sediments in the Prydz Bay – Kerguelen region, East Antarctica, and its relation to hinterland geology and redistribution processes, IPY Oslo Science Conference, 8. - 12. 06. 2010, Oslo/Norway.

Borchers, A., Voigt, I., Frederichs, T., Esper, O., Gersonde, R., Kuhn, G., Grobe, H., Diekmann, B.(2009). From Prydz Bay shelf to the deep sea - insights into 1.3 Ma history of bottom-water formation and ice-rafting inferred from sediment cores recovered in the Prydz Bay region., First SCAR ACE Symposium, 07. - 11.09.2009, Granada/Spain.

Peterhänsel, A., Voigt, I., Schlolaut, G., Baaske, U.P., Egenhoff, S.O. , Mutti, M. (2007). Differential GPS-Mapping Reveals Lagoonal Paleorelief of the 'Layer-Cake' Latemàr Buildup, Dolomites, Northern Italy, AAPG Annual Convention and Exhibition, 1. - 04.04 2007, Long Beach/USA.

01/2010 – recent

09/2002 – 09/2009

07/ 2002

PhD-Student in the MARUM research project SD3 (University of Bremen)
PhD thesis: “Sediment transport processes in the Mar del Plata Canyon, located at the continental margin off Argentina/Uruguay with special emphasis on mass wasting and its controlling mechanisms”
Supervisor: Prof. Dr. Rüdiger Henrich

Study of Earth Sciences at Potsdam University with specializing in Palaeoclimatology and Sedimentology
Diploma thesis (M.Sc. equivalent) in cooperation with the Alfred-Wegener-Institute for Polar and Marine Research (AWI); Research section Potsdam: Periglacial “'Spätquartäre Bodenwasserdynamik im Antarktischen Ozean südöstlich des Kerguelen-Plateaus” (Late Quaternary bottom-water dynamics in the Antarctic Ocean southeast of the Kerguelen-Plateau); Supervisor: PD Dr. B. Diekmann,

Diploma mapping project: Northern Italy, Dolomite Alps / Latemár 2006
'DGPS gestützte 3D-Paläoreliefrekonstruktion-Möglichkeiten und Einschränkungen am Beispiel der Latemàr Gruppe' (Reconstruction of 3D-Paleorelief based on Differential GPS-Mapping - Possibilities and Constrictions by the example of the Latemàr Buildup');
Supervisor: Prof. Dr. Maria Mutti

Diploma examinations:
•Geology (Structural Geology/Tectonics, Volcanology, Sedimentology,
Mineralogy/Petrology, Geophysics )
•Earth's geological and climatic history (Palaeogeography, Palaeoclimatology,
Palaeoecolology with global change)
•Sedimentology (Depositional Enviroments, Sequence Stratigraphy, Siliciclastic
Sedimentology, Carbonate Sedimentology)
•Palaeoclimatology (Climate Change, Exogenic Dynamics, Oceanography, Glaciology, Quaternary Geology)

Intermediate Diploma examinations (B.Sc. equivalent):
Geology, Chemistry, Physics and Mathematics

Degree: Abitur (equivalent High School)