Iodine-129/Xenon-129 Age of Magnetite from the Orgueil Meteorite
- 4 May 1973
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 180 (4085) , 489-491
- https://doi.org/10.1126/science.180.4085.489
Abstract
Magnetite from the Orgueil C1 chondrite is only 2.0 ± 2.4 million years older by the iodine-xenon method than the next oldest meteorite, the Karoonda C4 chondrite. This age ties the primitive C1 chondrites to the extensive iodine-xenon chronology of normal chrondrites. If Karoonda and Orgueil magnetite formed from similar material, then the age difference is an upper limit to the formation time of these meteorites—and by customary extension, the solar system. Condensation, chondrule formation, accretion, and metamorphism of the Karoonda parent body all seem to have been completed within a few million years.Keywords
This publication has 25 references indexed in Scilit:
- 129I and244Pu abundances in white inclusions of the Allende meteoriteEarth and Planetary Science Letters, 1972
- Some observations on the nature of magnetite in the Orgueil meteoriteEarth and Planetary Science Letters, 1970
- Nucleochronologies and the Mean Age of the ElementsThe Astrophysical Journal, 1970
- IXe dating: Evidence for cold assembly of an unequilibrated chondriteEarth and Planetary Science Letters, 1970
- La magnetite en plaquettes des meteorites carbonees d'alais, ivuna et orgueilEarth and Planetary Science Letters, 1967
- Chondrites: Their metallic minerals, thermal histories, and parent planetsIcarus, 1967
- Chondrules: Suggestion Concerning the OriginScience, 1966
- Genesis of chondritic meteoritesReviews of Geophysics, 1966
- Ambient Xenon : A Key to the History of MeteoritesNature, 1962
- The formation of the sun and planetsIcarus, 1962