title: Cosmic-Ray Exposure Age of the Farmington Meteorite from Radioactive Isotopes.
abstract: The cosmic-ray exposure age of the Farmington meteorite was found to be greater than 7000 years from the ratio of the carbon-14 and argon-39 present and less than 25,000 years from the ratio of the aluminum-26 and argon-39 present. This exposure age is about an order of magnitude smaller than was estimated previously.
authors.forename: J
authors.initials: J
authors.lastname: Defelice
authors.forename: G G
authors.initials: GG
authors.lastname: Fazio
authors.forename: E L
authors.initials: EL
authors.lastname: Fireman