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Chemical Dispersion Among Apollo 15 Olivine-Normative Mare Basalts

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dc.contributor.author Ryder, Graham
dc.contributor.author Steele, Alison
dc.coverage.spatial Moon
dc.date.accessioned 2020-06-18T21:13:31Z
dc.date.available 2020-06-18T21:13:31Z
dc.date.issued 1988
dc.identifier.uri https://hdl.handle.net/20.500.11753/1594
dc.description.abstract New analyses of Apollo 15 olivine-normative mare basalts for major and minor elements combined with a synthesis of all published data for them provide no support for the hypothesis that the coarser-grained varieties (olivine microgabbros) consist of two chemical groups. Instead, analyses of the coarse and fine basalts are consistent with their being a single group. The dominant control is that of olivine. The magnitude of olivine fractionation required is great enough to suggest that substantial olivine separation rather than merely short-range unmixing is required. The few coarse picritic basalt samples (feldspathic peridotites) appear to be olivine cumulates from the same parent magma. en
dc.format.extent Pages 273-282
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Lunar and Planetary Institute en
dc.relation.ispartof Proceedings of the Eighteenth Lunar and Planetary Science Conference
dc.relation.ispartofseries LPI contribution ; no. 637
dc.subject Lunar surface samples en
dc.subject Lunar petrology en
dc.title Chemical Dispersion Among Apollo 15 Olivine-Normative Mare Basalts en
dc.type Book chapter en


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