• Start
• Institute
• Research groups
• Geo- and Cosmochemistry
• Staff
• Research
• Recent projects
• Planetary collisions (german)
• Destiny+
• DFG SPP 1385 (completed)
• Facilities
• HIP IMS 1280-HR
• Publications
• Public outreach
• Study (german)
• Events
• Central facilities (german)

Geo- and Cosmochemistry

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Dr. Winfried Schwarz - e-Mail Dipl.-Phys. 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
    • Noble gas isotopes in high pressure rocks (ICDP/CCSD)
    • Noble gas isotopes in sediments ("Risiko durch große Meteoriteneinschläge" funded by the Klaus Tschira Stiftung gGmbH)
    • Noble gases in IDPs
  • 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