Spectral Heterogeneity of Lunar Local Dark Mantle Deposits

Mathematics – Logic

Scientific paper

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Alphonsus, Clementine, Moon: Dark Mantle Deposits, Moon: Pyroclastic Deposits, Moon: Spectral Heterogeneity

Scientific paper

We are currently investigating the spectral properties of lunar dark mantle deposits (DMD) utilizing Clementine UVVIS and HIRES image data (25-150 m/pixel). Local dark mantle deposits (LDMD) are identified by their very low albedo, smooth texture, and small size relative to the regional DMDs. DMDs are mostly composed of glass spheres and LDMD are thought to be mixtures of olivine, pyroxene, host rock and glasses formed during maar-type eruptions. We find that maar deposits in Alphonsus crater, Atlas crater, and the Schrodinger basin exhibit interdeposit spectral variations. Some of the maars in the Alphonsus region show intradeposit spectral variations and may be the result of maturity differences, admixture of surrounding material, crystallinity variation and/or true mineralogical differences.

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