Biomarker & Paläoklima

Wir beschäftigen uns mit Biomarkern und deren Applikation als Proxy für die Rekonstruktion vergangener Klimata. Biomarker sind organische Moleküle, deren Herkunft spezifischen Organismen oder Organismengruppen zugeordnet werden können. Ihre chemische Struktur (z. B. Anzahl und Position von Doppelbindungen) sowie ihre Isotopie beinhalten Informationen über die klimatischen Bedingungen (z. B. Temperatur, Niederschlag), unter denen sie einst gebildet wurden.  Biomarker sind sehr widerstandsfähig gegen Diagenese und behalten somit ihre primäre Struktur über lange Zeiträume, bis zu Millionen von Jahren. Sie sind in zahlreichen Klimaarchiven wie marinen und lakustrinen Sedimenten sowie Sedimentgesteinen enthalten, und ermöglichen somit die Rekonstruktion verschiedener klimatischer Bedingungen der Erdgeschichte
Biomarker von Interesse hierbei sind u.a. δD und δ13C von Pflanzenwachsen (langkettige n-Alkane, und n-Fettsäuren), Alkenone, Glycerol-Diphenyl-Glycerol-Diether (“GDGTs”), pflanzliche Terpenoide und Sterole. Die Biomarker Analytik erfolgt mittels GC-MS, GC-irMS und HPLC-MS/MS.

 

Team

Mulch AG Bilder
Prof. Dr. Andreas Mulch
Stellv. Generaldirektor, Professor, Head of Research Group 'Paleoclimate and Paleoenvironment Dynamics'

Research interests

My primary research interest is the interplay between the processes that shape the Earth’s surface and their geodynamic counterparts at depth, in particular interactions between climate, landscape evolution, and mountain building. The terrestrial biosphere plays an important role in various aspects of this research including controls on the global carbon cycle, atmospheric moisture transport, and weathering and erosion. My current research involves the use of isotopes as tracers of (bio-)geochemical processes from the ecosystem to the orogen scale with a particular focus on the Cenozoic evolution of coupled climatic and tectonic processes. Projects currently underway include stable isotope paleoaltimetry and reconstruction of Cenozoic terrestrial paleoclimate in western North America, the Andes, the Alps, and the Anatolian Plateau including the Eastern Mediterranean region.

Current Projects

Neogene to Quaternary tectono-geomorphic Evolution and paleo-hydrology of the South Central Andes, NW Argentina, DFG (2012-2014)

How is rifting exhuming the youngest high-pressure and ultrahigh-pressure rocks on earth? U.S. NSF Continental Dynamics (coord. S. Baldwin, Syracuse)

Central Anatolian Tectonics (CD-CAT) U.S. NSF Continental Dynamics (2012-2017, coord. D. Whitney, Minnesota)
http://www.esci.umn.edu/groups/CD-CAT/CD-CAT

Stanford University – Senckenberg Program on Biodiversity, Climate and Earth System Dynamics
https://pangea.stanford.edu/programs/germany/

Stable isotope paleoaltimetry and paleoclimate reconstructions of Late Cenozoic surface uplift of the Anatolian Plateau ESF-DFG TopoEurope (2009-2013)

Stable isotope paleoaltimetry and surface uplift of the Neogene Alps ESF-DFG TopoEurope (2009-2012)

Recovering surface uplift histories and climate dynamics of the Cenozoic North American Cordillera through integrated climate modeling, sedimentology, stable isotopic and cooling age studies (PI Chamberlain, Stanford)  (2010-2013)

 

Professional Activities
2009 Associate Editor American Journal of Science
2009 Beirat der Geologischen Vereinigung 

Honors and Awards

2013 Cox Visiting Professor, Stanford University

Short CV

Since 2015  Director, Senckenberg Research Institute and Natural History Museum Frankfurt
Since 05/2014 Cox Visiting Professor, Stanford University
Since 2013 Vice-Director General, Senckenberg Research Institute and Natural History Museums
Since 2012 Member of Board of Directors, Senckenberg Research Institute and Natural History Museums
Since 2010 Vice-Director, Biodiversity and Climate Research Centre (BiK-F)
Since 2010 Full Professor, Goethe University Frankfurt/Main, Institute of Geoscience
2007 – 2010 Director & Associate Professor, Leibniz University Hannover, Institute of Geology 
2004 – 2006 Research Associate, Geological and Environmental Sciences, Stanford University, USA
2004 – 2005 Post doctoral Research Associate, Geology and Geophysics, University of Minnesota, Minneapolis and Stanford University, USA
2004 Doctorate in Geochemistry (Dr. ès sciences) Université de Lausanne, Switzerland
1999 Diploma in Geology (Dipl. Geol.) University of Giessen, Germany

Nicolo Ardenghi
Ph.D. Student, Member of Research Group 'Paleoclimate and Paleoenvironment Dynamics'

Research interests

Paleoclimatology
Organic Geochemistry

Activity
Analysis of molecular biomarker such as stable hydrogen (δD) and stable carbon (δ13C) isotope compositions of plant waxes as proxies for past rainfall and vegetation change and GDGT based paleothermometry on terrestrial climate archives.

Academic and Professional Background
Since 2013 Research assistant at Biodiversity and Climate Research Center Frankfurt (BiK-F)
2010-2011 Project collaborator at the CVR (Consorzio Venezia Ricerche), Venice, Italy

Education
2012 Master Thesis in Environmental Sciences at the Ca‘ Foscari University of Venice, Italy: “Geochemical Characterization Of A Shallow Firn Core Retrieved From Colle Gnifetti (Monte Rosa, Italy)” 
2009-2012 MSc in Environmental Sciences at the Ca‘ Foscari University of Venice, Italy and Hiroshima, Japan (Joint Degree – Joint International Master in Sustainable Development)
2003 – 2007 BSc in Natural Sciences at the University of Padua, Italy

Mitarbeiterfoto
Ulrich Treffert
Technician of 'Stable Isotopes and Biomarker Laboratory'

A2.10: Earth surface processes and paleoclimate dynamics

A2.11: Stable isotope paleoclimate reconstructions

A2.20: Biomarker & paleoclimate

Fabian Schemmel
Ph.D. student

Research Interests

Paleoclimate Reconstruction
Organic Geochemistry
Stable Isotopes in Precipitation

Academic and Professional Background

Since 2010 Research assistant at Biodiversity and Climate Research Center Frankfurt (BiK-F)

2008 – 2010 Research assistant at Institute for Geology, Gottfried Wilhelm Leibniz University Hannover (Germany)

Education

2008 Diploma Thesis in collaboration with the Department for Marine Geology and Deep-Sea Mining, Federal Institute for Geosciences and Natural Resources, Hannover, Germany: „Sedimentological and geochemical characterization of deposits in the forearc-basin of Sumatra since the last Deglaciation”

2002 – 2008 Academic studies “Geowissenschaften” at Gottfried Wilhelm Leibniz University Hannover, Germany

Schemmel, F., Mikes, T., Rojay, B. & Mulch, A. (2013). The impact of topography on isotopes in precipitation across the Central Anatolian Plateau (Turkey). American Journal of Science, DOI: 10.2475/02.2013.01.