Versuch zur Datierung von Eisenmeteoriten nach der Rhenium-Osmium-Methode-Reference-Cited by-同舟云学术

Versuch zur Datierung von Eisenmeteoriten nach der Rhenium-Osmium-Methode

Published:1961-10-01 Issue:10 Volume:16 Page:1053-1058
ISSN:1865-7109
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Herr W.¹,Hoffmeister W.¹,Hirt B.²,Geiss J.²,Houtermans F. G.²

Affiliation:

1. Institut für Kernchemie der Universität Köln und Max-Planck-Institut für Chemie (Otto-Hahn-Institut), Mainz

2. Physikalisches Institut der Universität Bern

Abstract

The rhenium and osmium contents and the isotopic compositions of osmium in a number of meteorites have been measured. Os/Re ratios and 187Os/186Os ratios vary sufficiently as to make the 187Re/187Os dating-method applicable to meteorites. Also, the isotopic compositions of several samples of terrestrial common osmium have been determined, giving variations in the 187Os/186Os ratio which are larger than the terrestrial common strontium variations. The halflife of 187Re still is only tentatively known. Taking the latest value (4.3 · 1010 years), it is shown that the results are in agreement with the assumption that stone meteorites, iron meteorites and the crust of the earth have been formed about 4 to 5 AE ago.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-1961-1013/pdf

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