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People

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Dr. Alfredo Martínez García

Group Leader

  • Group Leader, Organic Isotope Geochemistry group, Climate Geochemistry Department, Max-Planck-Institute for Chemistry in Mainz, tenured (W2) since 2015.

  • Senior Researcher (SNF Ambizione fellow) at ETH Zürich (2012-2015)

  • Visiting Scholar at Princeton University (2014).

  • Postdoctoral Research Associate at ETH Zürich (2009-2012)

  • PhD, Autonomous University of Barcelona (2005-2009). Thesis: On the role of the Southern Ocean in Plio-Pleistocene Climate Evolution.

  • Diploma (Licenciatura) in Environmental Sciences at the Autonomous University of Barcelona (2000-2004)

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Dr. Florian Rubach

Mass-Spectrometer Manager

  • Postdoctoral Researcher, Max Planck Institute for Chemistry, Mainz (2016), Germany.

  • Postdoctoral Researcher, Leibniz Institute for Tropospheric Research (2013-2016)

  • PhD Environmental Chemistry, Bergische Universität Wuppertal and Forschungszentrum Jülich (2013)

  • Diploma Chemistry​, Christian-Albrechts-Universität zu Kiel (2010)

​​

Tasks:

  • Instrument operation and maintenance

  • Developement and refinement of analythical methods

  • Design and construction of new analythical devices

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Barbara Hinnenberg

Laboratory Technical Staff

Tasks:

  • Bacteria cultures (Pseudomonas chlororaphis and Pseudomonas aureofaciens)

  • Bacteria growth media preparation  

  • Isotopic Standards

  • N isotope protocols and sample analysis

  • Lab Organization

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Mareike Schmitt

Laboratory Technical Staff

  • MSc Geoscience, Johannes Gutenberg Universität (2018)

  • BSc Geoscience, Johannes Gutenberg Universität (2015)

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Tasks:

  • Gas Chromatography Isotope Ratio Mass Spectrometry (GC-IRMS)

  • Gas Chromatography (GC)

  • High Performance Liquid Chromatography (HPLC)

  • Biomarker protocols and sample analysis

  • Lab Organization

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Dr. Alan Foreman

Postdoc

  • Postdoctoral Researcher (2017-current), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • PhD, University of California, San Diego’s Scripps Institution of Oceanography (2017)

  • MSc Geology, University of California, San Diego’s Scripps Institution of Oceanography 

  • BSc Chemistry and Earth Science, Massachusetts Institute of Technology

  • BSc Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology

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Dr. Tina Lüdecke

Emmy Noether Group Leader

  • Emmy Noether Group Leader (2021-present), Max Planck Institute for Chemistry, Mainz, Germany

  • Postdoctoral Researcher (2020-2021), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany

  • Postdoctoral Researcher (2017-2020), Senckenberg Biodiversity and Climate Centre, Frankfurt, Germany. 

  • Research associate (2017-present), University of Oxford, England

  • Postdoctoral Researcher (2016-2017), New York University (NYU), USA

  • PhD, Goethe University Frankfurt, Germany (2016)

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*Visit Tina's website for more details about her research

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Dr. Jennifer Leichliter

Postdoc

  • Postdoctoral Researcher (2021-Present) HoMeCo Group,, Max Planck Institute for Chemistry, Mainz, Germany

  • Postdoctoral Researcher (2018-2021), Johannes Gutenberg University Mainz, Mainz, Germany

  • Visiting Postdoctoral Researcher (2018-Present), Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

  • PhD Anthropology, University of Colorado Boulder, Boulder, Colorado, USA (2018)

  • MA Anthropology, University of Colorado Boulder, Boulder, Colorado, USA (2011)

  • BSc Biological Anthropology, Colorado College, Colorado Springs, Colorado, USA (2008)

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Dr. Maayan Yehudai

Postdoc

  • Minerva Postdoctoral Fellow (2020-current), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.

  • PhD, Columbia University, Lamont Doherty Earth Observatory (2020)

  • MSc Oceanography, Hebrew University of Jerusalem, Israel (2014)

  • BSc Geology, BenGurion University of the Negev, Israel (2011)​

​​

*Visit Maayan's website for more details about her research

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Dr. Simone Moretti

PhD student and Postdoc

  • Postdoctoral Researcher (2021-current), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • PhD Student (2017-2021), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • MSc (2016), Earth Science Department, ETH Zurich

  • BSc (2014), University of Bologna, Italy

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Dr. Xuyuan (Ellen) Ai

PhD student and Postdoc

  • Postdoctoral Researcher (2023-current), Climate Geochemistry Department, Max Planck Institute for Chemistry, Germany, and Princeton University, USA.

  • PhD, Department of Geosciences, Princeton University (2023).​

  • MA, Department of Geosciences, Princeton University (2017)

  • BSc Environmental Science, University of Science and Technology of China

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Tanja Wald

PhD student and Postdoc

  • Postdoctoral Researcher (2023-current), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • PhD Student (2019-2023), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • MSc Geoscience, Institut für Geowissenschaften, Johannes Gutenberg Universität (2018), Mainz

  • BSc Geoscience, Institut für Geowissenschaften, Johannes Gutenberg Universität (2016), 

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Jonathan Jung

PhD Student

  • PhD Student (2022-current), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • MSc Environmental Science, Institute for Atmospheric and Environmental Science, Johann Wolfgang von Goethe University, Frankfurt am Main, Germany (2021)

  • BSc Geoscience, Institute for Gescience, Johann Wolfgang von Goethe University, Frankfurt am Main, Germany (2019).

Former Lab Members

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Dr. Nic Duprey

Former Postdoc

  • Since 2024, tenured CNRS Research Scientist (Chargé de Recherche), Laboratoire des Sciences de l'Environnement Marin.

  • Postdoctoral Researcher (2017-2024), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • Postdoctoral Researcher (2013-2016), SWIRE, The University of Hong Kong, Hong Kong 

  • PhD, Department of Environmental Sciences, Université Pierre et Marie Curie (2012), Paris, France.​

  • MSc Ecology of Littoral Ecosystems (2009), Université de La Rochelle/Universidad de Costa Rica.

  • BSc Biology, Department of Biology, Université de La Rochelle (2007), La Rochelle, France.

​

*Visit Nic's website for more details about his research

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Dr. Alexandra Auderset

Former PhD Student and Post Doc

  • Since 2025 tenured Lecturer at the University of Southampton

  • Senior Research Fellow, University of Southampton (2022-2025)

  • Postdoctoral Researcher (2020-2022), Princeton University and Max Planck Institute for Chemistry.

  • PhD Student (2016-2020), Max Planck Institute for Chemistry, Mainz, Germany and ETH Zurich, Switzerland.​

  • MSc (2015), Earth Science Department, ETH Zurich

  • BSc (2013), Earth Science Department, ETH Zurich

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*Visit Alex's website for more details about her research

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Paul Zander

Former Postdoc

  • Since 2024 Postoctoral Researcher Lawrence Livermore National Laboratory, USA

  • Postdoctoral Researcher (2022-2024), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • Postdoctoral Researcher (2021-2022) University of Bern, Bern, Switzerland.

  • PhD (2021), University of Bern

  • Research Technician (2015-2017), University of Arizona, Geosciences Department, Tucson, USA.​

​

*Visit Paul's website for more details about his research

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Dr. François Fripiat

Former Postdoc

  • Since 2019 tenured Assistant Professor at the Laboratoire de Glaciologie of the  Université Libre de Bruxelles

  • Postdoctoral Researcher (2016-2019), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • Postdoctoral fellow (2013-2016), Vrije Universiteit Brussel, Brussels, Belgium 

  • Postdoctoral research associate (2010-2013), Princeton University, Princeton, USA

  • PhD (2010), Université Libre de Bruxelles

​

*Visit François's website for more details about his research 

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Dr. Anja Studer

Former Postdoc

  • Since 2018 Research Associate, University of Basel, Switzerland

  • Postdoctoral Researcher (2015-2018), Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.​

  • Postdoctoral Research Fellow, Geosciences Department, Princeton University (2013-2015)

  • PhD, Geological Institute, ETH Zurich (2013)

​

*Visit Anja's website for more details about her current research 

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