Isotopic analysis of basaltic fragments from lunar breccia 14321 - Chronology and petrogenesis of pre-Imbrium mare volcanism

Details Isotopic analysis of basaltic fragments from lunar breccia 14321 - Chronology and petrogenesis of pre-Imbrium mare volcanism Isotopic analysis of basaltic fragments from lunar breccia 14321 - Chronology and petrogenesis of pre-Imbrium mare volcanism

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987gecoa..51.3241d&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 51, Dec. 1987, p. 3241-3254.

Computer Science

21

Basalt, Breccia, Chemical Analysis, Isotopes, Lunar Maria, Apollo 14 Flight, Volcanoes, Moon, Samples, Lunar, Isotopes, Basalt, Breccias, 14321, Chronology, Petrogenesis, Maria, Volcanism, Apollo 14, Isochron Age, Aluminum, Clasts, Trace Elements, Abundance, Chemistry, Classification, Origin, Abundance, Isotopic Ratios, Formation, Crystallization Age, Analysis, Procedure, Technique, Concentration, Rubidium, Strontium, Samarium, Laboratory Studies, Neodymium

Scientific paper

Internal (mineral) Rb-Sr isochrons were determined for six Apollo 14 mare basalts of lunar breccia 14321. The ages of these fragments, which represent the time of crystallization of the respective mafic lavas, range from about 4.05 to 4.24, and, possibly, to 4.33 Ga and are among the oldest dates reported for mare basalts. For three of the fragments, internal Sm-Nd isochron data were collected and initial Nd isotopic composition was determined. The results are discussed with reference to the original source of these different basaltic fragments.

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