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Uranium lead dating age of earth

This service is more advanced with JavaScript available, learn more at http: Contributions to Mineralogy and Petrology. The paper presents lead isotope data from samples from Phanerozoic lead-bearing ore occurrences in Central Europe, particularly from the Southern part of the former German Democratic Republic. The data are interpreted in terms of Amov's dynamic model of continuous lead isotope evolution. The relationships between thoro-genic and urano-genic model ages and the source of lead in different regional units are discussed.
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Uran-Blei-Datierung

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Uran-Blei-Datierung – Wikipedia

Die Uran-Blei-Datierung ist eine absolute Datierungsmethode , bei der die radioaktiven Zerfallsreihen von Uran ausgenutzt werden, um Proben zu datieren. Mit dieser Methode werden z. Das Alter des Sonnensystems wurde mittels dieser Datierungsmethode, angewandt auf die vermutlich ältesten in unserem Sonnensystem entstandenen Mineralien, den Calcium-Aluminium-reichen Einschlüssen in Meteoriten, auf 4, Milliarden Jahre bestimmt. Es gibt zwei Zerfallsreihen, die jeweils bei Uran-Isotopen beginnen und über mehrere Zwischenschritte bei Blei -Isotopen enden:. Die verschiedenen instabilen Zerfallsprodukte in diesen Reihen sind viel kurzlebiger als das jeweilige Uran-Isotop am Anfang der Reihe. Für die Altersbestimmung spielen daher nur die Halbwertszeiten der Uran-Isotope eine wesentliche Rolle. Nach dem Zerfallsgesetz gilt:.
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This service is more advanced with JavaScript available, learn more at http: Contributions to Mineralogy and Petrology. Based on regular arrays in a U-Pb diagram of data points of zircons from polymetamorphic rocks of the Alps quantitative models are developed that include several episodic lead losses, continuous lead losses during discrete periods and combinations of both.
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