Other
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985lpsc...15..365d&link_type=abstract
(Lunar and Planetary Institute, NASA, American Geophysical Union, et al., Lunar and Planetary Science Conference, 15th, Houston,
Other
19
Apollo 14 Flight, Basalt, Kreep, Lunar Soil, Petrology, Rare Earth Elements, Abundance, Breccia, Chemical Composition, Crystallization, Lunar Maria, Melting, Pyroxenes, Moon, Samples, Lunar, Apollo 14, Aluminum, Maria, Basalts, Kreep, 14321, Lanthanum, Samarium, Ytterbium, Major Elements, Composition, Petrography, Mineralogy, Rare Earth Elements, Abundance, Comparisons, Melting, Magma, Crystallization, Procedure
Scientific paper
Thirty-six aluminous mare basalt fragments from breccia 14321 and other Apollo 14 basalts are statistically divided into two broad groups, comprising five subgroups, using La, Sm, and Yb data. Major element compositions, petrographic characteristics, and mineral compositions are similar for the five groups. However, there is an eight-fold increase in REE abundances from Group 5 to Group 1, with Group 1 having a REE pattern similar to KREEP. Groups 1 to 3 may be related by partial melting of a source similar to that proposed by Unruh et al. (1984) for feldspathic basalt 12038. However, Groups 4 and 5 cannot be as closely matched by larger degrees of partial melting of this source. Groups 1 to 4 could also be produced by assimilation of a KREEP component by a magma similar in composition to Group 5. Such a magma can be produced by partial melting of an olivine-orthopyroxene source that crystallized from a magma with chondritic relative REE abundances.
Dickinson Tamara
Hughes Scott S.
Jeffrey Taylor G.
Keil Klaus
Schmitt Roman A.
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