¹Jack Wisdom
Meteoritics & Planetary Science (in Press) Link to Article [DOI: 10.1111/maps.12876]
¹Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
Published by arrangement with John Wiley & Sons

Meteorites are delivered from the asteroid belt by way of chaotic zones (Wisdom 1985a). The dominant sources are believed to be the chaotic zones associated with the ν6 secular resonance, the 3:1 mean motion resonance, and the 5:2 mean motion resonance. Though the meteorite transport process has been previously studied, those studies have limitations. Here I reassess the meteorite transport process with fewer limitations. Prior studies have not been able to reproduce the afternoon excess (the fact that approximately twice as many meteorites fall in the afternoon as in the morning) and suggested that the afternoon excess is an observational artifact; here it is shown that the afternoon excess is in fact consistent with the transport of meteorites by way of chaotic zones in the asteroid belt. By studying models with and without the inner planets it is found that the inner planets significantly speed up the transport of meteorites.

^1,2Vesselin Dekov, ³Pierre Rochette, ³Jérôme Gattacceca
Meteoritics & Planetary Science (in Press) Link to Article [DOI: 10.1111/maps.12879]
¹Tokyo University of Marine Science and Technology, Tokyo, Japan
²Department of Marine Geosciences, IFREMER, Centre de Brest, Plouzané, France
³Aix-Marseille Univ, CNRS, IRD, Coll France, CEREGE, Aix-en-Provence, France
Published by arrangement with John Wiley & Sons

We present a summary of the mineralogy, mineral chemistry, and magnetic characteristics of all the five Bulgarian meteorite falls. We report the first mineralogical descriptions, chemical analyses, and magnetic measurements of the Konevo (1931) and Silistra (1917) meteorites. We classify Konevo as LL5, and Silistra as an ungrouped achondrite with HED affinities. Pavel (1966; previously classified as an H5) is reclassified as H3-anomalous. We also provide precise mineralogy and mineral chemistry of the Virba meteorite (1873, L6), and more details on the mineral chemistry of Gumoschnik (1904, H5).