Measurements of Cl-36 in Antarctic meteorites and Antarctic ice using a Van de Graaff accelerator

Details Measurements of Cl-36 in Antarctic meteorites and Antarctic ice using a Van de Graaff accelerator Measurements of Cl-36 in Antarctic meteorites and Antarctic ice using a Van de Graaff accelerator

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979e%26psl..45..285n&link_type=abstract

Earth and Planetary Science Letters, vol. 45, no. 2, Nov. 1979, p. 285-292. NSF-supported research;

Computer Science

20

Antarctic Regions, Chlorine, Geochronology, Land Ice, Meteoritic Composition, Radiogenic Materials, Chemical Composition, Cosmic Rays, Mass Spectroscopy, Radioactive Age Determination, Van De Graaff Accelerators, Meteorites, Antarctic Meteorites, Ice, Chlorine 36, Isotopes, Ions, Van De Graaff Accelerator, Mass Spectrometry, Techniques, Models, Irradiation, Alha77002, Alha76008, Yamato-7301, Yamato-7304, Terrestrial Ages, Allan Hills Meteorites, Yamato Meteorites, Data, Experiments, Bruderheim Meteorite, Ch

Scientific paper

The paper presents measurements of cosmic-ray produced (Cl-36) in Antarctic meteorites and ice using a Van de Graaff accelerator as an ultrasensitive mass spectrometer. Results from this ion counting technique are used to support a two-stage irradiation model for the Yamato-7301 and Allan Hills-76008 meteorites and to show a long terrestrial age for Allan Hills-77002. Yamato-7304 has a terrestrial age of less than 0.1 m.y., and the (Cl-36) content of the Antarctic ice sample from the Yamato mountain is consistent with levels expected in currently depositing snow implying that the age of the ice cap at this site is less than on (Cl-36) half-life.

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