Geologic Exploration of Taurus-Littrow: Apollo 17 Landing Site

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Science  16 Nov 1973:
Vol. 182, Issue 4113, pp. 672-680
DOI: 10.1126/science.182.4113.672


Apollo 17 landed in a deep graben valley embaying the mountainous highlands southeast of the Serenitatis basin. Impact-generated breccias underlie the massifs adjacent to the valley, and basalt has flooded and leveled the valley floor. The dark mantle inferred from orbital photographs was not recognized as a discrete unit; the unusually thick regolith of the valley floor contains a unique high concentration of dark glass beads that may cause the low albedo of much of the surface.