Press abstracts Eighteenth Lunar and Planetary Science Conference, March 16-20, 1987

The Program Committee for the Eighteenth Lunar and Planetary Science Conference has chosen these contributions as having the greatest potential interest for the general public. The papers in this collection have been written for general presentation, avoiding jargon and unnecessarily complex terms. More technical abstracts will be found in Lunar and Planetary Science XVIII.Compiled by the Lunar and Planetary Institute.Evolution of an Impact-Generated H20-C02 Atmosphere and Formation of a Hot Proto-Ocean on Earth / Y. Abe and T. Matsui--Spectral Alteration Effects in Chondritic Gas-Rich Breccias: Implications for S-Class and Q-Class Asteroids / J.F. Bell and K. Keil--A High Abundance and Great Diversity of "Unmelted" Cosmic Dust on the West Greenland lee Cap / Ph. Bonte, C. Jehanno, M. Maurette, and E. Robin--Miranda Geology: Exotic lees on the Rocks / S.K. Croft.--The D/H and 18O/16O Isotopic Ratios in Comet Halley / P. Eberhardt, R.R. Hodges, D. Krankowsky, J.J. Berthelier, W. Schulte, U. Dolder, P. Lammerzahl, J.H. Hoffman, and J.M. llliano--The Geology of Pavonis Mons, Mars / K. Edgett, J.R. Zimbelman, and J.W. Branstrator--Hydrogen Distributions in Lunar Materials / E.K. Gibson, Jr., R. Bustin, A. Skaugset, R.H. Carr, S.J. Wentworth, and D.S. McKay--Martian (?) Calcite and Gypsum in Shergottite EETA79001 / J.L. Gooding, S.J. Wentworth, and M.E. Zolensky--Meteorites From the Planets / C.A. Goodrich and J.H. Jones--1986 DA and 1986 EB: Iron Objects in Near-Earth Orbits--A Bonanza for Science and Space Industrialization / J. Gradie and E.F. Tedesco--The Beta Pictoris Circumstellar Disk: A Forming Solar System? / J. Gradie, J. Hayashi, B. Zuckerman, H. Epps, and R. Howell--Venus Varnish: Modification of the Surface by Windblown Particles / R. Greeley, J.R. Marshall, and J.B. Pollack--Origin and Evolution of Valleys on Martian Volcanoes: The Hawaiian Analog / V.C. Gulick and V.R. Baker--Evidence for Topographic Rises, Fracture Zones, Topographic Symmetry, Central Rift Zones, Transform Faults, and Crustal Spreading: Aphrodite Terra, Venus / J.W. Head and L.S. Crumpler--Magma Migration and Hawaiian-Style Eruptions in Shield Volcanic Rift Zones: The Pu'u 'O'o Eruptive Episodes, Kilauea East Rift, Hawaii / J.W. Head III and L. Wilson--A Model for the Formation of Magnetic Anomalies Antipodal to Lunar Impact Basins / L.L. Hood--Sublimation and Transport of Water From the Residual North Polar Cap on Mars / B.M. Jakosky and R.M. Haberle--Sinker Induced Tectonics: Application to Miranda / D.M. Janes--The Nature of Planetary Cores / E. Knittle and R. Jeanloz--Recent Evidence of the Nature of the late Pliocene Impact Event / F.T. Kyte, L. Zhou, and J.T. Wasson--Observations of Industrial Sulfur Flows: Implications for Io / S. Lee, D. Crown, N. Lancaster, and R. Greeley--Interstellar Diamonds in Meteorites / R.S. Lewis, T. Ming, J.F. Wacker, and E. Steel--Isotopic Anomalies in Meteorites: Nickel Isotopes in Allende / G.W. Lugmair and C.A. Prombo--Topography Buried Beneath the Plains of Utopia and Elysium, Mars / G.E. McGill--Further Results on the Giant Impact Theory of the Moon's Origin / H.J. Melosh--Volatile/Mobile Trace Elements in Eucrites--I. Antarctic/Non-Antarctic Comparisons / R.L. Paul and M.E. Lipschutz--A Micrometeorite "Spectrum" for the Mass Distribution of Well Preserved Greenland Cosmic Dust Grains / E. Robin, C. Jehanno, M. Maurette, and C. Hammer--The Venusian Surface: Is it Really Old? / G.G. Schaber, E.M. Shoemaker, and R.C. Kozak--Mars-Rock-Meteorites: A Possible Reason Why We Have More Meteorites From Mars Than From the Moon, and a Prediction That Some May Be Found on Mars' Moons / E.l. Strickland, III--Mineralogy of Dominant Clasts in lunar Regolith Breccia 60019 and Comparison to Yamato lunar Meteorites / H. Takeda, H. Mori, T. Tagai, and M. Miyamoto--Lunar Geoscience Observer: Answering Basic Questions in Planetary Science / G.J. Taylor and P.D. Spudis--Demonstration of a Mass Independent Isotopic Fractionation in CO Reaction / M.H. Thiemens and D. Meagher--The Viscosity of Miranda / P.J. Thomas, R.T. Reynolds, S.W. Squyres, and P.M. Cassen--Simultaneous Measurements of C, Ni, and P in the Toluca and Algarrobo Iron Meteorites / C.C.A.H. van der Stap, D. Heymann, R.D. Vis, and H. Verheul--Are IDPs and Halley Dust Similar and, If So, So What? / R.M. Walker