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Stable Ni isotopes and Be-10 and Al-26 in metallic spheroids from Meteor Crater, ArizonaThe Canyon Diablo spheroids, which are found around Meteor Crater, Arizona, are nickel-enriched objects with diameters from less than 0.1 to several mm. Previous studies have suggested that the enrichment of nickel resulted either from shock-melting of S-rich areas followed by solidification of the liquids under strongly non-equilibrium conditions at rapid cooling rates during flight outward from the crater or from the selective oxidation of iron. Isotopic studies are an effective tool for constraining the degree of open-system evaporation experienced by a system. The purpose of this study was to see whether Ni isotopes had been fractionated by volatilization during spheroid formation. In addition, the cosmogenic nuclides Be-10 and Al-26 were measured to try to estimate the depths in the parent meteorite from which the spheroids came.
Document ID
19940016416
Document Type
Conference Paper
Authors
Xue, S. (Rutgers Univ. New Brunswick, NJ, United States)
Herzog, G. F. (Rutgers Univ. New Brunswick, NJ, United States)
Hall, G. S. (Rutgers Univ. New Brunswick, NJ, United States)
Klein, J. (Pennsylvania Univ. Philadelphia., United States)
Middleton, R. (Pennsylvania Univ. Philadelphia., United States)
Juenemann, D. (Pennsylvania Univ. Philadelphia., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 3: N-Z
Subject Category
GEOPHYSICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19940015909Analytic PrimaryWorkshop on the Martian Northern Plains: Sedimentological, Periglacial, and Paleoclimatic Evolution19940016163Analytic PrimaryTwenty-Fourth Lunar and Planetary Science Conference. Part 3: N-Z