Glazed Lunar Rocks: Origin by Impact

Details Glazed Lunar Rocks: Origin by Impact Glazed Lunar Rocks: Origin by Impact

May 1971

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971sci...172..556m&link_type=abstract

Science, Volume 172, Issue 3983, pp. 556-558

Physics

5

Scientific paper

The glassy coating of lunar rock 12017 is enriched in 15 trace elements relative to the crystalline interior. It apparently consists chiefly of shockmelted rock, somewhat richer in rare earth elements and alkali metals than rock 12017 itself. The glass has been contaminated by about 0.5 percent carbonaceous-chondrite-like material or, alternatively, by a mixture of 0.06 to 0.3 percent fractionated meteoritic material and approximately 10 to 15 percent local soil. The glazing seems to represent molten material splashed from a nearby meteorite impact and not in situ melting by a sudden increase in solar luminosity.

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