Sample Petrographic Description
| Sample Number | BUC 10939 |
| Newsletter | 36,1 |
| Location | Buckley Island |
| Field Number | 21448 |
| Dimensions (cm) | 6.0 x 4.5 x 3.5 |
| Weight (g) | 143.90 |
| Original Classification | L6 Chondrite |
| Pairing | BUC 100934; BUC 10934; BUC 10935; BUC 10937; BUC 10939; BUC 10948; BUC 10951; |
| Mineral Composition (%Fa & %Fs) | |
| Fayalite (mol%): 24;Ferrosilite (mol%): 19-20 | |
| Weathering | |
| C | |
| Fracturing | |
| C | |
| Macroscopic Description - Kathleen McBride, Cecilia Satterwhite | |
| All of the exteriors of these chondrites have shiny brown/black weathered fusion crust with oxidation haloes, rust and fractures. The interiors have a rusty black/brown matrix with oxidation, fractures and metal. | |
| Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach | |
| These sections consist of chondrules and chondrule fragments. Many of the silicates are mosaicized. In some, clasts are obvious (up to 1 cm), with melt veins present only in some sections. One obvious area of the section exhibits metal sulfide melt textures and some sections (BUC 10934, for example) exhibit metal and sulfides that appear slightly aligned into a petrofabric, with obvious fracturing in a direction perpendicular to the alignment of metal/sulfide. BUC 10939 shows sulfide mobility along abundant small fractures, with immiscibility textures evident in those veins. Olivine compositions are Fa23-24, pyroxene Fs20Wo1. These meteorites are similar enough to warrant initial pairing. The meteorites are shock blackened L6 chondrites. | |
| Antarctic Meteorite Images for Sample BUC 10939 | ||||
| Field Photo(s) : | ||||
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| Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah | ||||
| Antarctic Meteorite Images for Sample BUC 10939 | ||||
| Thin Section Photo(s) : | ||||
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