Elsevier

Icarus

Volume 165, Issue 1, September 2003, Pages 215-218
Icarus

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Quantified mineralogical evidence for a common origin of 1929 Kollaa with 4 Vesta and the HED meteorites

https://doi.org/10.1016/S0019-1035(03)00149-0 Get rights and content

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.

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Acknowledgments

We thank D. Mittlefehldt for providing the files for Fig. 3, and W. Golisch and D. Griep for their help at the IRTF. This research has been supported by the NAS/NRC Research Associateship Program (MSK), NASA Planetary Astronomy Grant NAG5-12445 (MSK), NASA Planetary Geology & Geophysics Grants NAG5-11540 (MSK) and NAG5-10345 (MJG), NASA Exobiology Grant NAG5-7598 (MJG), and the NASA Planetary Astronomy Program (FV).

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