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Cavour meteorite, Beadle Co., South Dakota, USA

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Latitude & Longitude (WGS84): 44° 13' 17'' North , 98° 3' 33'' West
Latitude & Longitude (decimal): 44.22139,-98.05917
Non-native locality type:Meteorite
Köppen climate type:Dfa : Hot-summer humid continental climate


Ordinary chondrite, brecciated (H6,br.)
Found, 1938;26.21 kg, 9 stones.

An odd shaped 3.6 kg meteoritic stone was found on a farm SW of Cavour. After identification as a meteorite in 1941, several other additional, usually highly oxidized fragments were found. Olivine composition (Fa19) is characteristic of the H (high iron) ordinary chondrites geochemical group. A relatively short cosmic ray exposure age (~2.7 Ma) has been reported.

Main mass (2 stones) has been with the United States National Museum in Washington 8.459 kg ; An additional 3.634 kg is with University of New Mexico with smaller masses elsewhere. [2012 Data].

Mineral List


7 valid minerals.

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References

Mason, B. (1963) Olivine in ordinary chondrites. Geochimica et Cosmochimica Acta 27(9): 1011-1023. (Sept. 2013).

Van Schmus, W.R. & Ribbe, P.H. (1968) The composition and structural state of feldspar from chondritic meteorites: Geochimica et Cosmochimica Acta 32(12): 1327-1342. (Dec 1968).

Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.

Graham, A. L., Bevan, A. W. R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson.

Graf, T. & Marti, K. (1995) Collisional History of H Chondrites: Journal of Geophysical Research 100 (E10): 247-263. (Oct 1995).

Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.

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