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Separation of Uranium and Thorium for 230Th-U Dating of Submarine Hydrothermal Sulfides
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238U/235U variaciones en meteoritos: 247Cm existente y implicaciones para la datación Pb-Pb

G A Brennecka1, S Weyer, M Wadhwa

  • 1School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA. brennecka@asu.edu

Science (New York, N.Y.)
|January 2, 2010
PubMed
Resumen

La proporción de isótopos de uranio en los meteoritos no es constante, lo que desafía la precisión de los cálculos de la edad del sistema solar. Las variaciones en las inclusiones ricas en calcio y aluminio sugieren que los métodos de datación pueden sobreestimar las edades en millones de años.

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