Browsing by Author "McSween, Harry Y., Jr."

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Dacite formation on Vesta: Partial melting of the eucritic crust

Hahn, Timothy M., Jr.; Lunning, Nicole G.; McSween, Harry Y., Jr.; Bodnar, Robert J.; Taylor, Lawrence A. (2017)

The Dominion Range 2010 howardite pairing group contains an evolved lithic clast of dacite composition. The dacite contains an assemblage of plagioclase, quartz, and augite, with minor pigeonite, troilite, ilmenite, FeNi ...
HED Meteorites and Their Relationship to the Geology of Vesta and the Dawn Mission

McSween, Harry Y., Jr.; Mittlefehldt, David W.; Beck, Andrew W.; Mayne, Rhiannon G.; McCoy, Timothy J. (2011)

Howardite-eucrite-diogenite (HED) meteorites, thought to be derived from 4 Vesta, provide the best sampling available for any differentiated asteroid. However, deviations in oxygen isotopic composition from a common ...
In situ laser ablation ICP-MS analyses of dimict diogenites: Further evidence for harzburgitic and orthopyroxenitic lithologies

Beck, Andrew W.; McSween, Harry Y., Jr.; Bodnar, Robert J. (2013)

Trace element concentrations in pyroxene, plagioclase, and olivine were measured in five diogenite breccias previously identified as containing distinct harzburgitic (ol+opx) and orthopyroxenitic (opx) lithologies (dimict). ...

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