Sample Petrographic Description
Sample Number | LAP 10030 |
Newsletter | 34,2 |
Location | LaPaz Ice Field |
Field Number | 22310 |
Dimensions (cm) | 4.0 x 3.6 x 2.5 |
Weight (g) | 50.75 |
Original Classification | CK5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 35 | |
Weathering | |
A/B | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
75% of the exterior has fractured brown/black fusion crust. Areas devoid of fusion crust reveal a gray matrix. This interior is gray with abundant darker inclusions; some have a crystalline appearance. | |
Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach, Nicole Lunning | |
The section consists of large (up to 2 mm), poorly-defined chondrules in a matrix of light colored coarser-grained silicates, sulfides and abundant magnetite. The meteorite is slightly weathered. Olivine is Fa34. The meteorite is a CK5 chondrite. |
Antarctic Meteorite Images for Sample LAP 10030 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAP 10030 | ||||
Thin Section Photo(s) : | ||||
References for Sample LAP10030 | |
Hiroi, T., Ohtsuka, K., Howard, K.T., Robertson, K.R., and Milliken, R.E., Kaiden, H., Imae, N., Misawa, K., Kojima, H., Sasakia, S., Matsuokaa, M., Nakamura, T., Bish, D.L., 2021, UV-visible-infrared spectral survey of Antarctic carbonaceous chondrite chips. Polar Science, 29, 100723, https://doi.org/10.1016/j.polar.2021.100723. | |
Wasson, J. T., Isa, J., Rubin, A. E., 2013, Compositional and petrographic similarities of CV and CK chondrites: A single group with variations in textures and volatile concentrations attributable to impact heating, crushing and oxidation. Geochimica et Cosmochimica Acta, 108, 1-May-13, 45-62, ISSN 0016-7037, http://dx.doi.org/10.1016/j.gca.2013.01.011. | |
RELAB, , Reflectance Experiment Lab , catalogue of samples. |