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arXiv · 1404.1245

Density, porosity and magnetic susceptibility of the Košice meteorite shower and homogeneity of its parent meteoroid

Tomáš Kohout·Karol Havrila·Juraj Tóth·Marek Husárik·Maria Gritsevich·Daniel Britt·Jiří Borovička·Pavel Spurný·Antal Igaz·Ján Svoreň·Leonard Kornoš·Peter Vereš·Július Koza·Pavol Zigo·Štefan Gajdoš·Jozef Világi·David Čapek·Zuzana Krišandová·Dušan Tomko·Jiří Šilha·Eva Schunová·Marcela Bodnárová·Diana Búzová·Tereza Krejčová
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Abstract

Bulk and grain density, porosity, and magnetic susceptibility of 67 individuals of Košice H chondrite fall were measured. The mean bulk and grain densities were determined to be 3.43 g/cm$^\text{3}$ with standard deviation (s.d.) of 0.11 g/cm$^\text{3}$ and 3.79 g/cm$^\text{3}$ with s.d. 0.07 g/cm$^\text{3}$, respectively. Porosity is in the range from 4.2 to 16.1%. The logarithm of the apparent magnetic susceptibility (in 10$^\text{-9}$ m$^\text{3}$/kg) shows narrow distribution from 5.17 to 5.49 with mean value at 5.35 with s.d. 0.08. These results indicate that all studied Košice meteorites are of the same composition down to ~g scale without presence of foreign (non-H) clasts and are similar to other H chondrites. Košice is thus a homogeneous meteorite fall derived from a homogeneous meteoroid.

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Tomáš Kohout, Karol Havrila, Juraj Tóth, Marek Husárik, Maria Gritsevich, Daniel Britt, Jiří Borovička, Pavel Spurný, Antal Igaz, Ján Svoreň, Leonard Kornoš, Peter Vereš, Július Koza, Pavol Zigo, Štefan Gajdoš, Jozef Világi, David Čapek, Zuzana Krišandová, Dušan Tomko, Jiří Šilha, Eva Schunová, Marcela Bodnárová, Diana Búzová, Tereza Krejčová. 2014-04-04. Density, porosity and magnetic susceptibility of the Košice meteorite shower and homogeneity of its parent meteoroid. https://doi.org/10.1016/j.pss.2014.02.003

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