|Basic information||Name: Catalina 001|
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2009
Mass: 4.68 kg
This is 1 of 583 approved meteorites classified as L3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
|Comments:||Approved 21 May 2016|
Writeup from MB 105:
Catalina 001 25°6.000’S, 69°45.500’W
Find: Dec 2009
Classification: Ordinary chondrite (L3)
History: E. Christensen and M. Warner found eight similar looking stones within a restricted area on a deflated gravel plain in the Antofagasta region of Chile.
Physical characteristics: The largest stone (842 g) is ~30% fusion crusted and exhibits well-developed regmaglypts. None of the other stones preserve fusion crust. The sawn surfaces of each stone look identical showing a sea of chondrules supported by abundant dark matrix, with only minor patches of iron staining. Magnetic susceptibility varies from log χ (× 10-9 m3/kg) = 4.78 to 4.82 (n=8).
Petrography: (L. Garvie, ASU) Five thin sections from five stones were examined. The sections are all similar and show an abundance of chondrules and chondrules fragments supported by dark matrix. Sharply defined chondrules from 0.1 to 2 mm, with a few to 6 mm. Matrix contains an abundance of sulfide and metal, which is occasionally concentrated at chondrules rims. In ultrathin sections the matrix is green in plane-polarized light and largely isotropic under crossed polars. Glass is common in chondrules ranging from clear (and isotropic) to partly devitrified.
Geochemistry: (L. Garvie, ASU) Microprobe analyses show olivine and pyroxene of variable compositions. Olivine, Fa0.92-40.91. Cr2O3 in olivine shows a maximum at 0.05 wt%, with a range of values to 0.4 wt%. Pyroxene Fs2.32-34.29Wo0.16-16.6. Oxygen isotopes: (R. Tanaka and D. Rumble, OkaU), (mean of two replicates: δ17O=3.655; δ18O=5.151; Δ17O=0.941 per mil).
Classification: The oxygen isotopes are consistent with the L ordinary chondrite group and the probe data with petrologic type 3.4.
Specimens: ASU holds 115.97 g (in six pieces) and five thin sections.
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
OkaU: Institute for Study of the Earth's Interior, Okayama University, Misasa Tottori 682-0193, Japan (institutional address)
|References:||Published in Meteoritical Bulletin, no. 105, in preparation (2016)|
This is 1 of 909 approved meteorites from Antofagasta, Chile (plus 1 impact crater)
This is 1 of 934 approved meteorites from Chile (plus 9 unapproved names) (plus 1 impact crater)
Direct link to this page