Sample Petrographic Description
Sample Number | GRA 06130 |
Newsletter | 30,2 |
Location | Graves Nunataks |
Field Number | 17935 |
Dimensions (cm) | 4.0 x 3.0 x 2.25 |
Weight (g) | 13.64 |
Original Classification | CV3 Chondrite |
Updated Classification | CV 3.7 Chondrite Oxidized A |
Pairing | GRA 06101; GRA 06130; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-32;Ferrosilite (mol%): 0-2 | |
Weathering | |
Be | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
Fusion crust covers 10% of the exterior which has a ropy, purplish black color. The interior is a black matrix with gray and white chondrules/clasts. | |
Thin Section Description (,2) - Tim McCoy, Linda Welzenbach | |
The section exhibits large chondrules (up to 3 mm) and CAIs in a dark matrix. Olivines range from Fa1-32 and pyroxenes from Fs0-2. The meteorite is an unequilibrated carbonaceous chondrite, probably a CV3. | |
Reclassification Notes (AMN 46,1) | |
Reclassification and pairing based on Raman spectroscopy (petrologic type 3.7), and on Ni content of metal and sulfide and magnetic susceptibility (Oxidized A). Details are reported in Righter et al. (2022); doi: 10.1111/maps.13932. |
Antarctic Meteorite Images for Sample GRA 06130 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample GRA 06130 | ||||
Thin Section Photo(s) : | ||||
References for Sample GRA06130 | |
Bonal, L., Gattacceca, J., Garenne, A., Eschrig, J., Rochette, P., and Ruggiu, L.K., 2020, Water and heat: New constraints on the evolution of the CV chondrite parent body. Geochimica et Cosmochimica Acta, 276, 363–383. | |
Gattacceca, J., Bonal, L., Sonzogni, C., and Longerey, J., 2020, CV Chondrites: More than one parent body. Earth and Planetary Science Letters, 547, 116467, doi: 10.1016/j.epsi2020.116467. | |
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. |