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LPI LPI Contribution No. 1134 - NASA ... LPI Contribution No. 1134 1 Program Friday, October 11, 2002 RADIOGENIC ISOTOPES AND OXYGEN FUGACITY 8:30 a.m. Berkner Rooms WELCOME AND ANNOUNCEMENTS

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    Abstract Volume

    LPI

    LPI Contribution No. 1134

    https://ntrs.nasa.gov/search.jsp?R=20020090114 2020-06-25T00:49:17+00:00Z

  • Unmixing the SNCs:

    Chemical, Isotopic and Petrologic Components of Martian Meteorites

    October 11-12, 2002

    Houston, Texas

    Sponsor

    Lunar and Planetary Institute

    Meeting Organizers Allan H. Treiman

    Lunar and Planetary Institute

    and

    Christopher D. K. Herd

    Lunar and Planetary Institute

    Co.Conveners

    John Jones, NASA Johnson Space Center

    David Mittlefehldt, NASA Johnson Space Center

    Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113

    LPI Contribution No. 1134

  • Compiledin 2002 by LUNAR AND PLANETARY INSTITUTE

    The Institute is operated by the Universities Space Research Association under Contract No. NASW-4574 with the National

    Aeronautics and Space Administration.

    Material in this volume may be copied without restraint for library, abstract service, education, or personal research purposes;

    however, republication of any paper or portion thereof requires the written permission of the authors as well as the appropriate

    acknowledgment of this publication.

    Abstracts in this volume may be cited as

    Author A. B. (2002) Title of abstract. In Unmixing the SNCs: Chemical, Isotopic, and Petrologic Components of Martian

    Meteorites, p. XX. LPI Contribution No. 1134, Lunar and Planetary Institute, Houston.

    This volume is distributed by

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    ISSN No. 0161-5297

  • Preface

    This volume contains abstracts that have been accepted for presentation at the

    conference on Unmixing the SNCs: Chemical, Isotopic, and Petrologic

    Components of Martian Meteorites, September 11-12, 2002, in Houston, Texas.

    Administration and publications support for this meeting were provided by the

    staff of the Publications and Program Services Department at the Lunar and

    Planetary Institute.

  • LP! Contribution No. 1134 v

    Contents

    1 Program ........................................................................................................................................................

    ABSTRACTS m

    v/Incompatible Trace Elements in SNCs and Li Isotopes Systematics in a Shergottite

    J. A. Barrat, P. Beck, M. Chaussidon, Ph. GiUet, A. Jambon, C. GOpel, and V. Sautter ....................... 7

    /Exploring Trace Element and Isotopic Mixing Relationships in the Martian Meteorite Suite

    L. E. Borg ............................................................................................................................................... 9

    /What Should We Looking for in Martian Meteorites? Is Evidence of Crustal Process or

    Mantle Process More Important -- and to Whom?

    J. S. Delaney and M. D. Dyar ............................................................................................................... 11

    ',/Crust-Mantle Reservoirs of Radiogenic Isotopes of Mars and Earth: Where Can We See a Mixing?

    G. Dreibus and E. Jagoutz ................................................................................................................... 13

    _VI6ssbauer Spectroscopy of SNC Meteorites

    M. D. Dyar ............................................................................................................................................ 15

    V/Petrogenesis of Olivine-Phyric Shergottites Sayh A1 Uhaymir 005 and Elephant

    Moraine A79001 Lithology A C. A. Goodrich ...................................................................................................................................... 17

    _¢lars Meteorite Statistics and the Martian Uplands

    W. K. Hartmann .................................................................................................................................... 19

    JMartian Basalt Oxygen Fugacity and Geochemistry: Implications for a Heterogeneous

    Martian Mantle

    C. D. K. Herd ........................................................................................................................................ 21

    jOrigin of the Martian Crust and Mantle

    P. C. Hess ............................................................................................................................................. 23

    /

    JNew Aspects in the Isotope Systematics of Shergottites

    E. J. Jagoutz and G. D. Dreibus ........................................................................................................... 25

    _SNC Meteorites and Martian Reservoirs

    J. H. Jones ....................................................................................................................................... 27

    i

    4Melting the Martian Mantle: Shergottite Formation and Implications for Present Day

    Mantle Convection on Mars

    W. S. Kiefer ........................................................................................................................................... 29

  • vi Unmixing the SNCs

    j/

    /QUE 94201: Reconsidering Its Origins as a Bulk Melt from a Volcanic Region of Mars

    D. A. Kring ........................................................................................................................................... 31

    ,/

    ..../SNC Meteorites and Their Source Composition(s) 33

    J. Longhi ...............................................................................................................................................

    /

    t/Oxygen Fugacity Recorded in Pigeonite: Indications of a Heterogeneous Martian

    Magma Source Region? M. C. McCanta and M. J. Rutherford ................................................................................................... 35

    Geochemistry of Martian Meteorites and the Petrologic Evolution of Mars

    D. W. Mittlefehldt ................................................................................................................................. 37

    /

    _ilicon in Mars' Core: A Prediction Based on Mars Model Using Nitrogen and Oxygen

    Isotopes in SNC Meteorites

    / R.K. Mohapatra and S. V. S. Murty ..................................................................................................... 39 /

    JREE in Shergottite Augites and Whole Rocks

    D. S. Musselwhite and M. Wadhwa ...................................................................................................... 41

    i

    _/_n "'Andesitic" Component in Shergottites with Restored LREE Abundances?

    L. E. Nyquist, C.-Y. Shih, H. Wiesmann, and J. A. Barrat .................................................................... 43

    JEvolution of Martian Atmospheric, Crustal and Mantle Xenon Components in

    Basaltic Shergottites K. D. Ocker, G. Holland, and J. D. Gilmour ........................................................................................ 45

    _/Noble Gases in the Terrestrial Planets, with Focus on what the SNC Meteorites Tell

    Us About Mars

    R. O. Pepin ............................................................................................................................................ 47

    /Shergottite Impact Melt Glasses Contain Soil from Martian Uplands M. N. Rao and D. S. McKay ................................................................................................................. 49

    '/ls Olivine Speedometer a Reliable Tool to Constrain Thermal Story of SNC Meteorites?

    V. Sautter, J. A. Barrat, and A. Jambon ............................................................................................... 51 /

    /;

    /Nitrogen and Noble Gases in Mineral Separates from Zagami S. P. Schwenzer, R. K. Mohapatra, S. Herrmann, and U. Ott .............................................................. 53

    +.,

    _/Chemical Composition of Newly Collected Antarctic Nakhlites, Y000593 and Y000749

    N. Shirai, Y. Oura, and M. Ebihara ...................................................................................................... 55

    /

    _Some Puzzles About What Noble Gas Components Were Mixed into the Nakhlites, and How T. D. Swindle ........................................................................................................................................ 57

  • LPI Contribution No. 1134 vii

    Element-Element Correlations Among Martian Meteorite Bulk Compositions: Peculiarities

    Explained(?) by Mixing, with Implications for the Composition of Mars A. H. Treiman ....................................................................................................................................... 59

    Chemistry and Microtextures of Melt Pockets in the Los Angeles Basaltic Shergottite

    E. L. Walton and J. G. Spray ................................................................................................................ 61

  • LPI Contribution No. 1134 1

    Program

    Friday, October 11, 2002 RADIOGENIC ISOTOPES AND OXYGEN FUGACITY

    8:30 a.m. Berkner Rooms

    WELCOME AND ANNOUNCEMENTS

    B