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Quantified mineralogical evidence for a common origin of 1929 Kollaa with 4 Vesta and the HED meteorites |
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| Authors: | Michael S Kelley Faith Vilas Paul A Abell |
| Institution: | a NASA Johnson Space Center, Mail Code SR, Houston, TX 77058, USA b Department of Space Studies, University of North Dakota, Grand Forks, ND 58202-9008, USA c Department of Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA |
| Abstract: | In this paper, we present the first correlation of derived mineral abundances of V-class Asteroid 1929 Kollaa, 4 Vesta, and the HED meteorites. We demonstrate that 1929 Kollaa has a basaltic composition consistent with an origin within the crustal layer of 4 Vesta, and show a plausible genetic connection between Kollaa and the cumulate eucrite meteorites. These data support the proposed delivery mechanism of HED meteorites to the Earth from Vesta, and provide the first mineralogical constraint derived from the observation of a small V-class, Vesta family asteroid on the crustal thickness of 4 Vesta. |
| Keywords: | Asteroids Vesta Surfaces asteroids Asteroids composition Spectroscopy |
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