NASA Technical Reports Server (NTRS) 20020090114: Unmixing the SNCs: Chemical, Isotopic, and Petrologic Components of the Martian Meteorites

72 Pages·4.2 MB·English

by  NASA Technical Reports Server (NTRS)

m
Abstract Volume
LPI
LPI Contribution No. 1134

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
Compiled
in 2002 by
LUNAR AND PLANETARY INSTITUTE
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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.
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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