NASA Technical Reports Server (NTRS) 19940031629: The Twenty-Fifth Lunar and Planetary Science Conference. Part 2: H-O

628 Pages·44.8 MB·English

by  NASA Technical Reports Server (NTRS)

NASA-CR-195744
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Lunar and Planetarv Science XXV
(NASA-CR-195744) THE TWENTY-F[FTH N94-3o136
LUNAR AND PLANETARY SCIENCE --THRU--
CONFERENCE. PART 2: H-O Abstracts N94-36174 i
f Onl y (Lunar _nd Planetary Inst. ) Unclas
514 p
G3/91 0003602
Abstracts of papers submitted to the
Twenty-fifth Lunar and Planetary
Science Conference
PART2 H - 0
LPI / I_,
National Aeronautics and LUNAR AND PLANETARY INSTITUTE
Space Administration UNIVERSITIES SPACE RESEARCH ASSOCIATION
Lyndon B. Johnson Space Center
Houston, Texas

LUNAR AND PLANETARY SCIENCE XXV
Abstracts of Papers Submitted to the
TWENTY-FIFTH LUNAR AND PLANETARY SCIENCE CONFERENCE
Sponsored by
National Aeronautics and Space Administration
Lunar and Planetary Institute
NASA Johnson Space Center
March 14-18, 1994
Part 2
Compiled by
Lunar and Planetary Institute
3600 Bay Area Boulevard
Houston TX 77058-1113
The Lunar and Planetary 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, educational, or personal research
purposes; however, republication of any paper or portion thereof requires the written permission of the authors as well
as appropriate acknowledgment of this publication.
Preface
This volume contains abstracts accepted by the Program Committee of the Twenty-FitCh Lunar and
Planetary Science Conference.
The Program Committee was co-chaired by Douglas Blanchard (NASA Johnson Space Center) and
David Black (Lunar and Planetary Institute); other members were Nadine Barlow (Lunar and
Planetary Institute), James Bell (NASA Ames Research Center), Donald Bogard (NASA Johnson
Space Center), Bruce Bohor (U.S. Geological Survey, Denver), Bruce Campbell (SmJthsonian
Institution), Mark Cintala (NASA Johnson Space Center), Tammy Dickinson (NASA Headquarters),
Deborah Domingue (Lunar and Planetary Institute), Charles Hohenberg (Washington University),
Walter Kiefer (Lunar and Planetary Institute), Marilyn Lindstrom (NASA Johnson Space Center),
Glenn MacPherson (Smithsonian Institution), Renu Malhotra (Lunar and Planetary Institute), Scott
Murchie (Lunar and Planetary Institute), Laurence Nyquist (NASA Johnson Space Center), Patricia
Rogers (NASA Headquarters), Sue Smrekar (Jet Propulsion Laboratory), Allan Treiman (Lunar
and Planetary Institute), Faith Vilas (NASA Johnson Space Center), Paul Warren (University of
California, Los Angeles), and Michael Zolensky (NASA Johnson Space Center).
Papers are arranged alphabetically by the last name of the first author. There are four indexes:
author, lunar sample number, meteorite, and keyword.
This abstract volume was compiled by the staff of the Publications and Program Services
Department of the Lunar and Planetary Institute. Computer service support was provided by the
LPI's Computer Center.
Logistics and administrative support for the conference was provided by the staff of the Publications
and Program Services Department, Lunar and Planetary Institute.

CONTENTS
Magnetic Properties of Zagami and Nakhla
D. P. Agerkvist, L. Vistisen, M. B. Madsen, and J. M. Knudsen ................................................................................ 1
Martian Fluvio-Thermal Erosion: Experimental Project
J. Aguirre-Puente, F. Costard, and N. Makhloufi ...................................................................................................... 3
Radiative Signals from Impact of Shoemaker-Levy on Jupiter
T.J. Ahrens, G. S. Orton, 7".Takata, and J. D. O'Keefe ............................................................................................ 5
Chondrules from Chondrules? An Ion Probe Trace Element Study
C. M. O'D. Alexander ................................................................................................................................................ 7
Evidence for Short SiC Lifetimes in the ISM
C. M. O'D. Alexander ................................................................................................................................................ 9
C! and Alkali Metasomatism in Unequilibrated Ordinary Chondrites
C. M. O'D. Alexander, J. C. Bridges, and R. Hutchison .......................................................................................... 11
Distributions of the Preatmospheric Sizes of Antarctic and Non-Antarctic Chondrites
V. A. Alexeev ............................................................................................................................................................ 13
On Calculation of Cosmic-Ray Exposure Ages of Meteorites
V. A. Alexeev ............................................................................................................................................................ 15
Short Life of Small Meteorites in the Cosmic Space?
V. A. Alexeev ............................................................................................................................................................ 17
Meteorites asDifferential Detectors of Events Over aLong Time Scale
V.A. Alexeev and G. K. Ustinova ............................................................................................................................ 19
New Prospects for Analyzing Lunar Pyroclastic Glass
C. C. Allen, L. P. Keller, J. P. Bradley, D. E. Brownlee, and D. S.McKay ............................................................. 21
Reduction of Lunar Mare Soil and Pyroclastic Glass
C. C. Allen, R. V. Morris, and D. S. McKay ............................................................................................................. 23
Calorimetric Thermometry of Meteoritic Troilite: Preliminary Thermometer Relationships
J. H. Allton, S.J. Wentworth, and J. L. Gooding ..................................................................................................... 25
C-, N-, O-, Si-, and Ti-Isotopic Ratios of Low Density Graphite Grains from Murchison
Indicate a Supernova Origin
S.Amari, E. Zinner, and R. S. Lewis ........................................................................................................................ 27
Lithospheric Controls on the Formation of Valles Marineris
F. S. Anderson and R. E. Grimm .............................................................................................................................. 29
Bunte Breccia-like Deposits Within the Manson Impact Structure (Iowa); Evidence for
Impact into a Shallow Marine Environment?
R. R. Anderson and B. J. Witzke ............................................................................................................................... 31
Surface Characteristics of Steep-Sided Domes on Venus and Terrestrial Silicic Domes:
A Comparison
S. W. Anderson, D. A. Crown, J. J. Plaut, and E. R. Stofan ..................................................................................... 33
IMAGE BLANK NOT F_LI_ED
V
Cryptomaria in the Schiller-Schickard, Mare Humorum and Western Oceanus Procellarum
Areas: Studies Using Dark-Halo Craters
I. Antonenko and J. W. Head ................................................................................................................................... 35
Computer Simulation of Low Pressure Melting in Meteoritic Igneous Systems
A. A. Ariskin and M. I. Petaev ................................................................................................................................. 37
Oblique Impact: Atmospheric Effects
N. A. Artem'eva and V. V. Shuvalov ........................................................................................................................ 39
Laboratory Simulations of Large-Scale Vortex Flows Generated at Impacts on Venus
and on Earth
V. 1.Artem' ev, V. A. Rybakov, S. A. Medveduk, and B. A. lvanov .......................................................................... 41
The Surface and Interior of Phobos
E. Asphaug and W. Benz ......................................................................................................................................... 43
Stratigraphy of Small Volcanoes and Plains Terrain in Vellamo Planitia, Venus
J. C. Aubele ............................................................................................................................................................. 45
Stepping into Space: Getting Involved inPre-College Outreach
J. C. Aubele and P. H. Schultz ................................................................................................................................ 47
A Mercury Orbiter Mission: Report on the European Space Agency's Assessment Study
A. Balogh, R. Grard, G. Scoon, and M. Hechler ..................................................................................................... 49
Gravity Studies of Mead Crater, Venus
W. B. Banerdt, N. J. Rappaport, W. L. Sjogren, and R. E. Grimm .......................................................................... 51
Mars Soil: Nanophase Minerals and Formation Processes
A. Banin ................................................................................................................................................................... 53
The Hypsometric Distribution of Impact Craters on Venus
M. Banks, S. Emerson, R. G. Strom, and G. G. Schaber ......................................................................................... 55
Observational and Computational Evidence for Gravitationally Stable Particle Accretions
in the Perseid Meteor Stream
J. C. Barentine ......................................................................................................................................................... 57
Impact Craters as Indicators of Subsurface H20 on Mars
N. G. Barlow ........................................................................................................................................................... 59
A Quantitative Assessment of an Impact Generated Ring Vortex
O. S.Barnouin and P. H. Schultz ............................................................................................................................ 61
Concentric Wrinkle Ridge Pattern Around Sif and Gula
A. T. Basilevsky ....................................................................................................................................................... 63
Preliminary Stratigraphic Basis for Geologic Mapping of Venus
A. T. Basilevsky and J. W. Head .............................................................................................................................. 65
Geology and Morphometry of Large Impact Craters of Venus
A. T.Basilevsky, B. A. lvanov, P. G. Ford, and C. M. Weitz ................................................................................... 67
Variations in Mars' North Residual Polar Cap Frost Coverage in Mariner 9and Viking Images
D. S. Bass, K. E. Herkenhoff, and D. A. Paige ........................................................................................................ 69
vi
SingleAgglutinateAs:ComparatiSvteudyofCompositioonfsAgglutinitiGclass,
Whole-GraBinu,lkSoil,andFMR
A. Basu, R. Robinson, D. S.McKay, D. P. Blanchard, R. V. Morris,
and S.J. Wentworth ................................................................................................................................................. 7i
Deep Melting and Residual Garnet in the Sources of Lunar Basalts: Lu-Hf Isotopic Systematics
B. L. Beard, G. A. Snyder, and L. A. Taylor ............................................................................................................ 73
COMA: A Cometary Matter Analyzer for In Situ Analysis with High Mass Resolution
P. Beck and J. Kissel ................................................................................................................................................ 75
Solar Wind Gases in a Metal Separate from Lunar Soil 68501: A Followup Study
R. H. Becker and R. O. Pepin .................................................................................................................................. 77
The Partitioning of Na Between Melilite and Liquid: An Experimental Study with
Applications to Type B CAIs
J. R. Beckett and E. M. Stolper ................................................................................................................................ 79
High Spatial Resolution Telescopic Multispectral Imaging and Spectroscopy of the Moon: I.
The Serenitatis/Tranquillitatis Border Region
J. F. Bell lll and B. R. Hawke .................................................................................................................................. 81
High Resolution Visible to Short-Wave Near-Infrared CCD Spectra of Mars During 1990
J. F. Bell 111,K. Bornhoeft, and P. G. Lucey ........................................................................................................... 83
Absolute Calibration and Atmospheric vs. Mineralogic Origin of Absorption Features
in 2.0 to 2.5 pm Mars Spectra Obtained During 1993
J. F. Bell 111,J. B. Pollack, T.R. Geballe, D. P. Cruikshank, and R. Freedman ..................................................... 85
Wavelength Calibration Techniques and Subtle Surface and Atmospheric Absorption Features
inthe Mariner 6, 7IRS Reflectance Data
J. F. Bell I11,T. L. Roush, T. Z. Martin, and R. Freedman ...................................................................................... 87
Ordinary Chondrites in Space and Time
J. F. Bell ................................................................................................................................................................... 89
Geologic Map of Cailisto
K. C. Bender, R. Greeley, J. W. Rice Jr., and D. E. Wilhelms ................................................................................. 91
Pre-Impact Orbital Evolution of P/Shoemaker-Levy 9
L. A. M. Benner and W. B. McKinnon ...................................................................................................................... 93
Post-Shock Cooling and Annealing Within L-Group Ordinary Chondrites
M. E. Bennett and H. Y. McSween Jr....................................................................................................................... 95
Primitive Material in Lunar Highland Soils
P. H. Benoit, J. D. Batchelor, S. J. Symes, and D. W. G. Sears ............................................................................... 97
Natural Thermoluminescence Profiles in Meteorites: Cosmogenic and Terrestrial Profiles
in Falls and Finds
P. H. Benoit, Y. Chen, and D. W. G. Sears .............................................................................................................. 99
Shoemaker-Levy 9 and the Tidal Disruption of Comets
W. Benz and E. Asphaug ........................................................................................................................................ 101
Refractory Carbides in Interstellar Graphite
T.J. Bernatowicz, S.Amari, and R. S.Lewis ......................................................................................................... 103
vii
OriginofAmorphouRsimsonLunaSr oilGrains
T. J. Bernatowicz, R. H. Nichols Jr., and C. M. Hohenberg ................................................................................. 105
Craters in Aluminum 1100 Targets Using Glass Projectiles at 1-7 krn/s
R. P. Bernhard, T. H. See, F. Hi_rz, and M. J. Cintala .......................................................................................... 107
A Martian Mantle with Peridotitic Versus Chondritic Mg/Si and A1/Ca Ratios: Implications
for Mantle Mineralogy and Melting Reactions
C. M. Bertka .......................................................................................................................................................... !09
Thermal Inertias in the Upper mm of the Martian Surface Derived Using the Phobos Shadow
B. H. Betts, B. C. Murray, and T. Svitek ................................................................................................................ 111
Magellan LOS Gravity of Venus Plains Regions: Lithospheric Properties and Implications
for Global Tectonics
D. L. Bindschadler ................................................................................................................................................ !13
The Unique Carbonaceous Chondrite Acfer 094: The First CM3 Chondrite (?)
A. Bischoff and T. Geiger ...................................................................................................................................... 115
Reflectance Spectra of Mars Soil Analogs Measured Under Reduced Atmospheric Pressures
and Temperatures
J. L. Bishop and C. M. Pieters ............................................................................................................................... 117
Spectroscopic and Geochemical Analyses of Sediments from Lake Hoare, Antarctica and
Applications to Dry Valleys on Mars
J. L. Bishop, P. A. J. Englert, D. W. Andersen, C. Kralik, C. Koeberl,
C. M. Pieters, H. Froeschl, and R. A. Wharton Jr................................................................................................. 119
A Mineralogical Instrument for Planetary Applications
D. F. Blake, D. T. Vaniman, and D. L. Bish .......................................................................................................... 121
Infrared Spectrophotometry of Io Between 3and 13lam in 1993
D. L. Blaney, M. S. Hanner, R. Russell, D. Lynch, and J. Hackwell ..................................................................... 123
Measuring Track Densities in Lunar Grains Using Image Analysis
G. E. Blanford, D. S.McKay, R. P. Bernhard, and C. K. Schulz .......................................................................... 125
A Spectral Survey of the Crisium Region of the Moon
D. T. Blewett, B. R. Hawke, P. G. Lucey, and P. D. Spudis .................................................................................. 127
Venus: Influence of Surface Roughness on the Threshold for Windblown Sand Derived
from Magellan Data
D. G. Blumberg and R. Greeley ............................................................................................................................ 129
Mars Cartographic Coverage: Status Prior to Mars-94 Mission
N. N. Bobina and G. A. Burba ............................................................................................................................... 131
Geometrical Transformation of Panoramas of Mars Surface Received from Phobos-2
Space Station
1.M. Bockstein, M. A. Kronrod, and Yu. M. Gektin .............................................................................................. 133
Fe and Mn Systematics in Experimental Analogues of Murchison and a 65% H Chondrite-
35% CM Chondrite
J. S.Boesenberg and J. S.Delaney ....................................................................................................................... 135
viii