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Sutton meteorite, Clay Co., Nebraska, USA

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Latitude & Longitude (WGS84): 40° 36' North , 97° 52' West
Latitude & Longitude (decimal): 40.60000,-97.86667
Non-native locality type:Meteorite
Köppen climate type:Dfa : Hot-summer humid continental climate


Ordinary chondrite, (H5)
Find,1964; 7.6 kg

A Plowed-up stone was recovered. Immediate inspection reveals chondrules, chondrule fragments, and Fe-Ni metal within a largely equilibrated matrix punctuated by occasional and possibly exotic clasts. Compositionally, equilibrated olivine (Fa 18) and low Ca-orthopyroxene ('bronzite") are characteristic of the H-chondrite geochemical group. Mineralogically, the meteorite consists primarily of dominant olivine and pyroxene accompanied by minor troilite and Fe-Ni metal. Accessory chromite and very small amounts of ilmenite and copper are also reported.

A U-He age of ~1.91 Ga is reported, possibly indicative of a major collision involving an intermediate parent body (IPB) long after the original formation of its original parent body. A cosmic ray exposure (CRE) age of t ~6.8 Ma has been reported and may be indicative of a major collision 6-10 Ma ago involving a very large fraction of the current stream of H5 ordinary chondrites.

Mineral List


6 valid minerals.

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References

Mason, B. (1967) Olivine Composition in Chondrites—a supplement: Geochimica et Cosmochimica Acta 31(6):1100-1103. (June 1967).

Taylor, G.J. (1968) On the Thermal History of Chondrites: Master's Thesis: Rice University. 73 pages.

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

Taylor, G. J., Scott, E. R. D., Rubin, A. E., Maggiore, P., & Keil, K. (1982) Structure and Fragmentation of the Parent Asteroids of Ordinary Chondrites (abstract): Lunar and Planetary Science XIII: 799-800. (March 1982).

Willis, J. & Goldstein, J. I. (1982) A revision of metallographic cooling rate curves for chondrites: Lunar and Planetary Science Conference XII, Proceedings, Section 2: pp. 1135-1143: New York and Oxford, Pergamon Press.

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

Wasson, J.T. & Wang, S. (1991) The histories of ordinary chondrite parent bodies: U,Th-He age distributions. Meteoritics 26(2): 161-167. (June 1991).

Graf, Th. & Marti, K. (1995) Collisional history of H chondrites. J. Geophys. Res. (Planets) 100, 21247–21263.

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

Grady, M.M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.

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