Integrated Multispectral and Geophysical Datasets: A Global View of Lunar Pyroclastic Deposits

Details Integrated Multispectral and Geophysical Datasets: A Global View of Lunar Pyroclastic Deposits Integrated Multispectral and Geophysical Datasets: A Global View of Lunar Pyroclastic Deposits

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998nvmi.conf...29g&link_type=abstract

Workshop on New Views of the Moon: Integrated Remotely Sensed, Geophysical, and Sample Datasets, p. 29

Physics

Lunar Maria, Volcanology, Lunar Craters, Selenology, Lunar Composition, Lunar Surface, Clementine Spacecraft, Lunar Crust

Scientific paper

We are integrating multispectral Clementine UVVIS data with crustal thickness data to examine the composition and distribution of lunar pyroclastic deposits. Examples are the large deposits of Apollo 17/Taurus Littrow and Aristarchus and the small deposits (or endogenic "dark-halo" craters) located along fractures in the floors of Alphonsus , Atlas, and Schrodinger craters. Our early efforts focus on the small pyroclastic deposits because of their relative youth (about 1 Ga in some cases), their broad global distribution, and the fact that their small sizes may have inhibited early Earth-based (about 500 m spectral spot size at best) spectral analyses. We are now studying a variety of small deposits, including those of the Atlas Crater, Franklin Crater, Eastern Frigoris highlands, Oppenheimer Crater, Lavoisier Crater. and Orientale Crater regions. Our goals are to: (1) understand the full extent of interdeposit compositional variations among small lunar pyroclastic deposits; (2) evaluate the possible effects of soil maturation and lateral mixing on the "true" compositions of these deposits; (3) determine the prevalence and nature of intradeposit compositional variations; (4) identify and characterize the juvenile components of these deposits; and (5) understand the implications of these results for studying lunar eruption mechanisms.

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