Toward consistent chronology in the early solar system:: High-resolution 53Mn-53Cr chronometry for chondrules

被引:34
作者
Yin, Qing-Zhu
Jacobsen, Benjamin
Moynier, Frederic
Hutcheon, Ian D.
机构
[1] Univ Calif Davis, Dept Geol, Davis, CA 95616 USA
[2] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Livermore, CA 94551 USA
关键词
astrochemistry; minor planets; asteroids; nuclear reactions; nucleosynthesis; abundances; planetary systems : protoplanetary disks; solar system : formation; ISOTOPE SYSTEMATICS; MN-53; AGE;
D O I
10.1086/519282
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
New high-precision Mn-53-Cr-53 data obtained for chondrules extracted from a primitive ordinary chondrite, Chainpur (LL3.4), define an initial Mn-53/Mn-55 ratio of. As a result of this downward revision from an earlier higher value of (9.4 +/- 1.7) x 10(-6) for the same meteorite (Nyquist et al. 2001), together with Al-26-(26) Mg and Pb-207-Pb-206 systems emerges in the early solar system.
引用
收藏
页码:L43 / L46
页数:4
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