Browsing by Author "Jessberger E.K."

Browsing by Author "Jessberger E.K."

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  • BRECCIATION AND CHEMICAL HETEROGENEITIES OF CI CHONDRITES 
    Morlok A.; Bischoff A.; Stephan T.; Floss C.; Zinner E.; Jessberger E.K. (2006)
    Fragments in the size range from 40 ?m to several hundred ?m in the CI chondrites Orgueil, Ivuna, Alais, and Tonk show a wide range of chemical compositions with variations in major elements such as iron (10.4-42.4 wt% ...
  • CARBONACEOUS XENOLITHS IN THE KRYMKA LL3.1 CHONDRITE: MYSTERIES AND ESTABLISHED FACTS 
    Semenenko V.P.; Jessberger E.K.; Weber I.; Stephan T.; Wies C.; Chaussidon M. (2005)
    The results of a detailed study on mineralogy, chemistry, and the carbon and oxygen isotopes of two exotic Krymka carbonaceous xenoliths are presented in this article. The investigated xenoliths are metamorphosed and shocked ...
  • CHEMICALLY FRACTIONATED FISSION-XENON IN METEORITES AND ON THE EARTH 
    Shukolyukov Y.A.; Meshik A.P.; Jessberger E.K.; Jordan J.L.; Vu Minh D. (1994)
    This is a report on the nature of isotopically anomalous xenon, which has been detected in two Ca-Al-rich inclusions of the Allende carbonaceous chondrite. It is extremely enriched in 132Xe, 129Xe, and to a lesser extent ...
  • THE DISTRIBUTION OF MANTLE AND ATMOSPHERIC ARGON IN OCEANIC BASALT GLASSES 
    Trieloff M.; Falter M.; Jessberger E.K. (2003)
    Argon analyses by both high-resolution stepheating and stepcrushing of MORB and Loihi basalt glasses were performed to separate pristine mantle-derived Ar and contaminating atmospheric Ar. In high-vesicularity glasses (> ...