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Age of Allan Hills 82102, a meteorite found inside the ice (1989)

Bonani, G. ; Nishiizumi, K. ; Jull, A. J. T. ; [et al.]

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Publication Date: 2011-08-19

Description: The terrestrial age of a meteorite that was recovered from below the surface of Antarctic ice is reported, and it is argued that this represents a measurement of the age of the ice itself. The cosmogenic radionuclides Be-10, C-14, Al-26, Cl-36, and Mn-53 are measured in the meteorite and Be-10 and Cl-36 in the ice. A terrestrial age of 11,000 yr is obtained for the meteorite, which suggests that the snow accumulation area where it fell was only a few tens of km away.

Keywords: LUNAR AND PLANETARY EXPLORATION

Type: Nature (ISSN 0028-0836); 340; 550-552

Format: text

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