Geo- and Cosmochemistry

  Dr. Winfried Schwarz - e-Mail

Institut für Geowissenschaften
Im Neuenheimer Feld 234-236
D-69120 Heidelberg

Tel.: 06221/54-6015 -4887
FAX: 06221/54-4805


  • Education and employment
    1995 Diplom in Physics (Laboratorium für Geochronologie, Heidelberg University)
    Title: Einrichtung eines PC-gestützten Massenspektrometer-Nachweissystems und 40Ar/39Ar-Untersuchungen an miozänen Impaktgläsern
    1995-2000 Member of research staff at the Laboratorium für Geochronologie, Heidelberg University
    1996-1999 Member of research staff at the Graduiertenkolleg 273 "fluid-rock interaction" of the Deutschen Forschungsgemeinschaft
    2001 Dissertation (Naturwissenschaftliche Gesamtfakultät, Heidelberg University)
    Title: Argon-Geochemie von Mineralen hydrothermaler Bildung (Zeolithe; Serizite in Plagioklas)
    2001-2007 Member of research staff at the Mineralogical Institut, Heidelberg University
    2001 Visiting scientist at the Vrije Universiteit Amsterdam, Faculteit der Aard- en Levenswetenschappen
    since 2008 Member of research staff at the Institut für Geowissenschaften, Heidelberg University

  • Research interests and current projects
    • Noble gases isotope geochemistry
    • Radiometric dating using the K-Ar-, 40Ar/39Ar- and U/Pb-methods
      • Dating of metamorphic and intrusive rocks, and volcanics
      • Dating of meteorites, impact craters and their related tektites
      • Calibration of neutron fluence monitors for 40Ar/39Ar dating
      • Revision of the K decay constants
    • C isotopic composition in carbon minerals (e.g. graphite)

  • Miscellaneous
    • Homepage of the RG Geo- and Cosmochemistry of the Institute of Earth Sciences, Heidelberg University

  • Important publications and abstracts
    • Schwarz W.H., Kossert K., Trieloff M., Hopp J. (2011) Comment on the "Joint determination of 40K decay constants and 40Ar*/40K for the Fish Canyon sanidine standard, and improved accuracy for 40Ar/39Ar geochronology" by Paul R. Renne et al. (2010), Geochimica et Cosmochimica Acta 75, 5094-5096, doi:10.1016/j.gca.2011.06.022.
    • Schwarz W.H., Trieloff M. (2007) Intercalibration of 40Ar-39Ar age standards NL25, HB3gr hornblendes, GA-1550, SB-3, HD-B1 biotite and BMus/2 muscovite, Chem. Geol. 241, 218-231, doi: 10.1016/j.chemgeo.2007.03.016
    • Korochantseva E.V., Trieloff M., Lorenz C.A., Buykin A.I., Ivanova M.A., Schwarz W.H., Hopp J., Jessberger E.K. (2007) L chondrite asteroid breakup tied to Ordovician meteorite shower by multiple isochron 40Ar-39Ar dating, Meteorit. Planet. Sci. Vol. 42, 1, 113-130. (Abstract, full text pdf)
    • Schwarz W.H., Lippolt H.J. (2002) Coeval argon-40/argon-39 ages of moldavites from the Bohemian and Lusatian strewn fields, Meteorit. Planet. Sci. Vol. 37, 12, 1757-1763. (Abstract, full text pdf)
    • W. H. Schwarz, M. Trieloff (2007) Revising the K decay constant. 70th Annual Meteoritical Society Meeting, Meteoritics and Planetary Science, Vol. 42, Nr. 8, Supplement, A138 (5058)
    • Winfried H. Schwarz, Mario Trieloff (2007) Constraints on the revision of the K decay constants. 17th Goldschmidt Conference, Geochim. Cosmochim. Acta Vol 71/15, Supplement, A910
    • Schwarz W., Trieloff M. (2006) Cooling history of a H chondrite: constraints on the decay constants used in K-Ar dating. 4th Planet Formation Workshop Heidelberg, 33


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