Apollo 11 Drive-Tube Core Samples: An Initial Physical Analysis of Lunar Surface Sediment

Details Apollo 11 Drive-Tube Core Samples: An Initial Physical Analysis of Lunar Surface Sediment Apollo 11 Drive-Tube Core Samples: An Initial Physical Analysis of Lunar Surface Sediment

Jan 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970sci...167..734f&link_type=abstract

Science, Volume 167, Issue 3918, pp. 734-737

Physics

4

Scientific paper

Two drive-tube core samples were obtained at Tranquillity Base. Fines include much glass, are unweathered, medium gray, loose, nonstructured, very weakly coherent, and demonstrate both accumulation and mixing in a waterless vacuum environment. In contrast to chemical weathering characteristic on the earth, lunar alteration processes are primarily mechanical. We infer that environmental processes of the lunar surface may be expressed as follows: R (regolith) = f(cl, p, r, t, b, a,...), in which climate (cl) is constant and the time (t)-dependent processes of bombardment (b) and accumulation (a) assume significance unparalleled on the earth because of their effects on parent material (p) and relief (r).

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