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Isotopic Hg in an Allende carbon-rich residue (1990)

Jovanovic, S. ; Reed, G. W., Jr.

In: Other Sources

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Publication Date: 2011-08-19

Description: A carbon-rich residue from Allende subjected to stepwise heating yielded two isotopically resolvable types of Hg: one with an (Hg-196)/(Hg-202) concentration ratio the same as terrestrial (monitor) Hg; the other enriched in Hg-196 relative to Hg-202 by about 60 percent. Hg with the 202 isotope enriched relative to 196, as is found in bulk Allende, was not observed. Whether the result of mass fractionation or nucleosynthesis, the distinct types of Hg entered different carrier phases and were not thermally mobilized since the accretion of the Allende parent body.

Keywords: LUNAR AND PLANETARY EXPLORATION

Type: Meteoritics (ISSN 0026-1114); 25; 345

Format: text

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