Other
Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1355s&link_type=abstract
Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 355.
Other
Lunar Maria, Basalt, Lunar Mantle, Magma, Lithium, Beryllium, Astronomical Models, Trace Elements, Titanium, Ytterbium
Scientific paper
We have used light lithophile elements (Li, Be), in conjunction with other trace elements, to model the sources of the low-Ti mare basalts. In contrast to high-Ti mare basalt sources, which contain from 0.8 to 1.5 percent trapped residual magma ocean liquid, low-Ti mare basalt sources appear to be relatively devoid of this incompatible-element-enriched trapped liquid (less than 0.5 percent). Source modelling indicates that the low-Ti basalts were melted from sources formed after 82-94 percent crystallization of an early moonwide magma ocean, in contrast to high-Ti basalts which were formed from more evolved magma ocean cumulates (after about 95 percent crystallization). All mare basalts were melted from the uppermost 20 percent of the magma ocean cumulate pile, whereas volcanic glass beads could have come from the lower mantle.
Neal Chris R.
Snyder Glenn A.
Taylor Lawrence A.
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