Unraveling the evolution of chondrite parent asteroids by precise U-Pb dating and thermal modeling
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Amelin, Yuri; Ghosh, Amitabha; Rotenberg, E
Description
U-Th-Pb isotopic data are reported for mineral fractions, individual chondrules and fractions of chondrule fragments from the equilibrated ordinary chondrite Richardton (H5). Chondrules and milligram-sized fractions of pyroxene-rich chondrule fragments contain highly radiogenic Pb and concordant or nearly concordant U-Th-Pb isotopic systems, and are suitable for precise Pb-Pb age determinations. Olivine and sulfide have low U concentrations and contain less radiogenic Pb. The ages of individual...[Show more]
Collections | ANU Research Publications |
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Date published: | 2005 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/36330 |
Source: | Geochimica et Cosmochimica Acta |
DOI: | 10.1016/j.gca.2004.05.047 |
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01_Amelin_Unraveling_the_evolution_of_2005.pdf | 1.57 MB | Adobe PDF | Request a copy |
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