The question of excess lead in meteorites

Details The question of excess lead in meteorites The question of excess lead in meteorites

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981geokh.....1091o&link_type=abstract

Geokhimiia, Aug. 1981, p. 1091-1102. In Russian.

Computer Science

Chondrites, Lead Isotopes, Meteoritic Composition, Radioactive Age Determination, Uranium Isotopes, Chemical Evolution, Least Squares Method, Regression Analysis

Scientific paper

The reasons for the unusually high U-Pb ages of meteorites are examined. A model is proposed for the evolution of uranium-lead isotope systems that contain captured lead of two types: primary and excess. It is established that a three-coordinate system makes it possible to calculate the age of objects governed by this model without prior assumptions about the isotopic compositions of the primary and excess lead. The Allende meteorite is used in establishing the model's validity.

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