Dr. Marlene Reuschel, Dipl.-Geol.
Institut für Geologie und Paläontologie
Lehrstuhl für Historische und Regionale Geologie
Corrensstraße 24
D-48149 Münster

Telefon: +49 (0)251 / 83-33972
Telefax: +49 (0)251 / 83-33933
E-Mail: marlene.reuschel [at] uni-muenster.de

Uni-Zimmer-Nr.: 526

Research Interests

The main scientific goal of my PhD thesis is the understanding of the sedimentary sulfur cycling throughout the Archean-Paleoproterozoic transition (APT) between 2.5 and 2.0 Ga. Thereby the application of multiple sulfur isotope research (δ³⁴S, Δ³³S and Δ³⁶S) offers the possibility to reconstruct past environmental conditions and changes in ocean chemistry as well as changes in the atmospheric oxygen concentration through time.
The FAR DEEP (Fennoscandian Arctic Russia Drilling Early Earth Programme) drillcores provide excellent material to examine this crucial interval in Earth history.

... more   http://www.icdp-online.org/contenido/icdp/front_content.php?idcat=1083

Scientific career

• 2007–2011: PhD student at the Institut für Geologie und Paläontologie, Westfälische Wilhelms-Universität Münster
• 2006: internship at the Stable Isotope Lab of the Institut für Grundwasserökologie of the GSF, Munich
• 2005: RV Professor Logachev, TTR 15, Black Sea. Geochemistry of mud volcanoes (pore water analysis), chief scientist: G. Bohrmann
• 2003-2006: student assistant for Dr. A. Munnecke (IPAL, Univ. Erlangen) (geochemistry of limestone-marl alternations)
• 2002–2007: student of Geology and Paleontology at the Friedrich Alexander Universität Erlangen-Nürnberg
  
  Diploma-thesis
  Part I: Kohlenstoff und Sauerstoffisotopenanalysen an Baumringen verschiedener Standorte der Mongolei (advisors: M. Joachimski, U.Treter)
  Part II: Geologische Kartierung des Areals SW von Seeb, Sultanat Oman (advisors: M. Bernecker, M. Joachimski)

Publications (December 2011)

Journal publications - in preparation, submitted, in review, accepted, in press:

• Reuschel, M., Melezhik, V.A., Whitehouse, M.J., Lepland, A., Fallick, A.E., Strauss, H. (2012). Isotopic evidence for a sizeable seawater sulfate reservoir at 2.1Ga, Precambrian Research 192-195, 78-88.
• Reuschel, M., Melezhik, V., Strauss, H. (accepted, Precambrian Research). Sulfur isotopic trends and iron speciation from the c. 2.0 Ga Pilgujärvi Sedimentary Formation, NW Russia.
• Reuschel, M, Strauss, H., Lepland, A. (accepted). The End of Mass-Independent Fractionation of Sulphur Isotopes. In: V.A. Melezhik, A.E. Fallick, L. Kump, A. Lepland, A.R. Prave, H.Strauss (eds.), Reading the Archive of Earth‘s oxygenation. Springer.
• Strauss, H, Reuschel, M., Kump, L., M., Melezhik, V.A., Fallick, A.E., Lepland, A. (in review). Abundant Marine Calcium Sulphates – Radical Change of Seawater Sulphate Reservoir and Sulphur Cycle. In: V.A. Melezhik, A.E. Fallick, L.Kump, A.Lepland, A.R. Prave, H.Strauss (Editors), Reading the Archiveof Earth‘s oxygenation, Springer.
• Reuschel, M., Diekrup, D., Strauss, H. (in review, Geostandards and Geoanalytical Research). The photometric determination of Fe2+ from geological samples by the 1.10-phenantroline method.

Conference abstracts:

• Reuschel, M., Whitehouse M., Strauss, H., Lepland, A., Melezhik, V. (2011). Long residence (> 6 Ma) time of Paleoproterozoic seawater sulfate revealed by in situ and ex situ sulfur isotope measurements. Goldschmidt Conference Prague (poster).
• Sansjofre, P., Ader, M., Trindade, R., Reuschel, M., Nogueira, A. (2011). An attempt to trace the redox state of the post marinoan glaciation (˜635Ma) ocean at the Araras Platform (Brazil). Goldschmidt Conference Prague (poster).
• Reuschel, M., Strauss, H., Melezhik, V.A., Lepland, A., Kump, L.R. (2011). Geochemical fingerprints of an evolving oxic atmosphere in the Paleoproterozoic-A sulfur isotope approach. ICDP/IODP Meeting, Münster (poster).
• Reuschel, M., Strauss, H. (2011). Tales from an evolving oceanic sulfate reservoir. Münster Graduate School of Evolution Symposium, February 17^th–18^th, 2011, Abstracts, p. 33.
• Reuschel, M., Whitehouse, M.J., Lepland, A., Melezhik, V.A., Strauss, H. (2010). Sulfate standards for in situ high spatial resolution SIMS measurements. 20^th Annual V.M. Goldschmidt Conference, Knoxville Tennessee/USA, June, 13.–18.2010, Geochimica et Cosmochimica Acta 74 (Supplement 1), p. A863
• Reuschel, M., Strauss, H., Melezhik, V.M., Lepland, A., Cartigny, P., Kumpl, L.R., Deines, Y., Romashkin, A., Rychanchik, D. (2010). The global sulfur cycle across the Archean Paleoproterozoic transition: Evidence from FAR DEEP. ICDP/ODP Meeting, Frankfurt.
• Reuschel, M., Strauss, H., Lepland, A., Melezhik, V.A., Cartigny, P., Kaufman, A.J. (2009). Multiple sulfur isotope measurements from the 2.44 Ga Seidorechka Sedimentary Formation. 19^th Annual V.M. Goldschmidt Conference, Davos/Switzerland, June, 21.–26.2009, Geochimica et Cosmochimica Acta, 73 (Supplement 1), p. A1091.
• Reuschel, M., Strauss, H., Far deep scientists (2009). Sulfur isotope variation in Paleoproterozoic strata of the Fennoscandian Shield. ICDP/ODP Meeting, Potsdam.
• Reuschel, M., Strauss, H. Melezhik, V.A., Fallick, A.E. (2008). Isotopic biogeochemistry in Paleoproterozoic strata. IAS Meeting, Bochum.
• Reuschel, M., Strauss, H. Melezhik, V.A., Fallick, A.E. (2008). FAR DEEP- Sulfur biogeochemistry in deep time. 33^rd IGC Olso.