Mathematics – Logic
Scientific paper
Jun 1961
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1961gecoa..24...32h&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 24, Issue 1-2, pp.32-34
Mathematics
Logic
3
Scientific paper
The remains of cosmic spherules have been found in two samples of Tertiary rock from the Oceanic Formation on Barbados. Only the outer oxide coating of the iron cosmic spherules is preserved. It is supposed that weathering has corroded the metallic nucleus usually found within the iron spherule; and the absence of olivine spherules is attributed to the same cause. If it is assumed that cosmic dust has been falling throughout geological time at much the same rate as now, then a thick uniform blanket should overlay the level surfaces of the moon, obscuring all fine detail. Over some of these regions the expected monotony is not apparent. An attempt is made to remove the difficulty by supposing that meteorites have accompanied the dust. The impacts of the meteorites continually blast out fresh lunar rock, the fragments being exposed to erosion by the dust. The large amount of powdered rock so produced completely smothers the cosmic dust and the composition in any locality is much the same as the underlying rock.
Hunter W.
Parkin David W.
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