Sample Petrographic Description
Sample Number | DOM 03181 |
Newsletter | 29,1 |
Location | Dominion Range |
Field Number | 14349 |
Dimensions (cm) | 18.0 x 15.5 x 13.0 |
Weight (g) | 5363.90 |
Original Classification | L3 Chondrite |
Updated Classification | L3.5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-37;Ferrosilite (mol%): 1-5 | |
Weathering | |
B/C | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
The exterior of this ordinary chondrite has black fusion crust on some surfaces. Areas without fusion crust are brown and gray with a coarse grained texture. Abundant light colored inclusions are present. The interior is gray with some oxidation and rusty areas. Light colored mm sized inclusions are visible. | |
Thin Section Description (,2) - Tim McCoy, Linda Welzenbach | |
The section exhibits numerous well-defined chondrules (up to 1.5 mm) in a black matrix of fine-grained silicates, metal and troilite. Polysynthetically twinned pyroxene is extremely abundant and glass is preserved in a few chondrules. Silicates are unequilibrated; olivines range from Fa1-37 and pyroxenes from Fs1-5. The meteorite is an L3 chondrite and may be of moderately low subtype (estimated subtype 3.5). | |
Reclassification Notes (AMN 29,1) | |
Classification updated to L3.5, as announced in AMN vol. 29, no. 1. |
Antarctic Meteorite Images for Sample DOM 03181 | ||||
Lab Photo(s) : | ||||
References for Sample DOM03181 | |
Bonal, L., Quirico, E., Flandinet, L., Montagnac, G., 2016, Thermal history of type 3 chondrites from the Antarctic meteorite collection determined by Raman spectroscopy of their polyaromatic carbonaceous matter. Geochimica et Cosmochimica Acta, 189, 312-337. | |
RELAB, , Reflectance Experiment Lab , catalogue of samples. |