Sebastian Viehmann, Dr. Dipl.-Geol.

sebastian.viehmann@univie.ac.at

Raumnummer: 2A375
Tel.: +43-1-4277-53680
Fax: +43-1-4277-9534

Sebastian Viehmann


Research Interests:

  • Evolution of early Earth's environments
  • Biogeochemistry
  • (Marine) chemical sediments
  • Trace element and isotope geochemistry
  • High field strength and rare earth element geochemistry
  • Geochronology
  • Weathering and erosion processes

http://fums-research.webnode.at/

Short CV:

2017 – current: Post-doctoral research associate at the Department of Geodynamics and Sedimentology at the University of Vienna, Austria funded by an individual Marie-Curie fellowship of the European Union Horizon 2020 programme.
Project ELEMIN: How the earliest life on Earth became mineralised.

2016 -2017: Guest scientist at the Department of Geodynamics and Sedimentology at the University of Vienna, Austria.

2011 – 2016: PhD student and research associate at the Department of Physics and Earth Sciences at the Jacobs University Bremen, Germany.
Thesis topic: “The evolution of Precambrian environments and their impact on the trace element and Hf-Nd isotopic composition of ancient seawater”.

2004 – 2011: Diploma (MSc equivalent) in Geology/Paleontology at the Rheinische Friedrich-Wilhelms Universität Bonn, Germany.
Thesis topic: “Seawater-derived REY, trace element and HFSE systematics of Archean Banded Iron Formations (BIFs)”.

Born 1985 in Bergisch Gladbach, Germany


 Veröffentlichungen (aus u:cris)


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2018


Decoupled Hf and Nd isotopes in suspended particles and in the dissolved load of Late Archean seawater. / Viehmann, Sebastian; Bau, Michael; Hoffmann, J. Elis ; Münker, Carsten.

in: Chemical Geology, Band 483, 2018, S. 111-118.

Veröffentlichung: Beitrag in FachzeitschriftArtikel


2016


Combined bulk-rock Hf- and Nd-isotope compositions of Mesoarchaean metavolcanic rocks from the Ivisaartoq Supracrustal Belt, SW Greenland: Deviations from the mantle array caused by crustal recycling. / Szilas, Kristoffer; Hoffmann, J. Elis; Schulz, Toni; Hansmeier, Christina; Polat, Ali; Viehmann, Sebastian; Kasper, Hainno; Münker, Carsten.

in: Chemie der Erde / Geochemistry, Band 76, Nr. 543-554, 2016.

Veröffentlichung: Beitrag in FachzeitschriftArtikel


Geochemical characterisation of Neoproterozoic marine habitats: Evidence from trace elements and Nd isotopes in the Urucum iron and manganese formations, Brazil. / Viehmann, Sebastian; Bau, Michael; Bühn, Bernhard; Dantas, Elton L.; Walde, Detlef H.G.

in: Precambrian Research, Band 282, Nr. 74-96, 2016.

Veröffentlichung: Beitrag in FachzeitschriftArtikel


Source composition, fractional crystallization and magma mixing processes in the 3.48-3.43 Ga Tsawela tonalite suite (Ancient Gneiss Complex, Swaziland) – implications for Palaeoarchean geodynamics. / Hoffmann, J. Elis ; Kröner, Alfred; Hegner, Ernst; Viehmann, Sebastian; Xie, H.; Iaccheri, Linda M.; Schneider, Kathrin; Hofmann, Axel; Wong, J.; Geng, H.; Yang, J.

in: Precambrian Research, Band 276, Nr. 43-66, 2016.

Veröffentlichung: Beitrag in FachzeitschriftArtikel


2015


Sm-Nd and Lu-Hf isotope and trace-element systematics of Mesoarchaean amphibolites, inner Ameralik fjord, southern West Greenland. / Szilas, Kristoffer; Hoffmann, J. Elis; Hansmeier, Christina ; Hollis, J.A. ; Münker, Carsten ; Viehmann, Sebastian; Kasper, Hainno U.

in: Mineralogical Magazine, Band 79 (4), Nr. 857-876, 2015.

Veröffentlichung: Beitrag in FachzeitschriftArtikel


The reliability of ~2.9 Ga old Witwatersrand banded iron formations (South Africa) as archives for Mesoarchean seawater: Evidence from REE and Nd isotope systematics. / Viehmann, Sebastian; Bau, Michael; Smith, Albertus J.B.; Beukes, Nic J.; Dantas, Elton L.; Bühn, Bernhard.

in: Journal of African Earth Sciences, Band 111, Nr. 322-334, 2015.

Veröffentlichung: Beitrag in FachzeitschriftArtikel


2014


Decoupled Hf-Nd isotopes in Neoarchean seawater reveal weathering of emerged continents. / Viehmann, Sebastian; Hoffmann, J. Elis; Münker, Carsten; Bau, Michael.

in: Geology, Band 42 (2), Nr. 115-118, 2014.

Veröffentlichung: Beitrag in FachzeitschriftArtikel


2013


Visualisation and quantification of CV chondrites using micro-tomography. / Hezel, Dominik C.; Elangovan, P.; Viehmann, Sebastian; Howard, L.; Abel, Richard L.; Armstrong, R.

in: Geochimica et Cosmochimica Acta, Band 116, Nr. 33-40, 2013.

Veröffentlichung: Beitrag in FachzeitschriftArtikel


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