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ELEMENTS DEPLETED ON LUNAR SURFACE: IMPLICATIONS FOR ORIGIN OF MOON AND METEORITE INFLUX RATE
[report]
1972
unpublished
Preserved Fulltext
Compared to terrestrial basalts and eucrite meteorites, Apollo 11 and 12 basalts are consistently depleted in siderophile elements (Ir, Pd, Ag, Au) and volatile elements (Zn, Cd, In, Tl, Bi, Br), by factors of 10~1 to 10~2. The depletion of siderophiles suggests that the Earth and Moon segregated their metal and silicate in two discrete events, contrary to the fission hypothesis. Moreover, if the Eartheucrite pattern is typical of independently-formed planetary bodies, the greater depletion of
doi:10.2172/4727125
fatcat:kwaoekbwdrcgperhiekm6e45vq