Radiation Bleaching of Thin Lunar Surface Layer

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Science  20 Sep 1968:
Vol. 161, Issue 3847, pp. 1237-1238
DOI: 10.1126/science.161.3847.1237


The thin, lighter-colored, upper layer of lunar soil shown in the television pictures from several Surveyor missions may be due to reversible bleaching by solar radiation. Of several possible bleaching reactions, the one considered most important is the photoreduction of Fe+3 to Fe+2.

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