Effects of maturation on the reflectance of the lunar regolith: Apollo 16 — A case study |
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| Authors: | John B Adams Michael P Charette |
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| Institution: | (1) West Indies Laboratory, Fairleigh Dickinson University, St. Croix, Virgin Islands;(2) Planetary Astronomy Laboratory, Dept. of Earth and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Mass., USA;(3) Planetary Astronomy Laboratory, Dept. of Earth and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Mass., USA |
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| Abstract: | Soils at the Apollo 16 site become progressively darker as the percentage of glassy agglutinates increases. Magnetic separates of the agglutinate fraction of a soil always are darker than the bulk soil, and darker than the non-agglutinate fraction that consists of rock and mineral fragments. Darkening of a soil with maturity is due mainly to the increasing proportion of agglutinates. Coating of rock and mineral fragments with thin deposits of glass aids darkening in a minor way, but most of these particles eventually are destroyed by melting as the soils mature.Present address: Dept. of Geological Sciences, University of Washington, Seattle, Wash., U.S.A. |
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