| Summary: | You must extract the zipped files before using. To begin viewing the abstracts, click on the file "index.html." Topics discussed include basaltic studies, planetary differentiation (e.g., lunar highland rocks), and remote sensing studies of chemical composition, mineralogic composition, and physical surface properties. Particular attention is given to the petrology and chemistry of basaltic fragments from the Apollo 11 soil; a model of early lunar differentiation; rocks of the early lunar crust; refractory and moderately volatile element abundances in the Earth, moon, and meteorites; the effects of overlapping optical absorption bands of pyroxene and glass on the reflectance spectra of lunar soils; and characterization of Martian surface materials from earth-based radar. Sponsored by NASA through the Lunar and Planetary Institute and the Johnson Space Center PARTIAL CONTENTS: The Morphology Microphysics and Cloud Processes of the Clouds of Venus as Determined from the Pioneer Venus Mission / Knollenberg, R.G. -- Block-Layered Model of Lunar Crust / Koryakin, E.D. -- Morphology of Fresh Martian Craters as an Indicator of the Depth of the Upper Boundary of the Ice-Bearing Permafrost: a Photogeologic Study / Kuzmin, R.O. -- Tectonic Patterns on Reoriented and Tidally Relaxed Planets / Melosh, H.J. -- The Lunar Magma Ocean, a Transient Lunar Phenomenon? / Minear, J.W.
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