The age of the Stillwater complex - A comparison of U-Pb zircon and Sm-Nd isochron systematics

Details The age of the Stillwater complex - A comparison of U-Pb zircon and Sm-Nd isochron systematics The age of the Stillwater complex - A comparison of U-Pb zircon and Sm-Nd isochron systematics

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981gecoa..45.1961n&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 45, Oct. 1981, p. 1961-1963. Research supported by the Ontario Geological Survey.

Mathematics

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1

Geochronology, Lead Isotopes, Meteoritic Composition, Radioactive Age Determination, Uranium Isotopes, Error Analysis, Neodymium Isotopes, Samarium Isotopes

Scientific paper

A zircon U-Pb age of 2713 + or - 3 Myr confirms the age obtained from the same sample of zircon from the Stillwater chill zone. The age is compared with Sm-Nd mineral and whole-rock isochron ages of 2701 + or - 8 Myr, and the agreement to within 0.4% indicates that the lambda(147) = 0.00654 x 10 to the -9th per year value is less than 0.8% too large, thus enabling more correct geological syntheses to be made when working out detailed absolute age stratigraphies using precise data from both syntheses.

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