ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] In any sample, the Ar actually measured will consist of unknown proportions of a trapped magmatic and a contaminating atmospheric component, and it is possible that the trapped magmatic component may not be quantitatively retained in the glass. In what follows, 40Ara and 40Arm denote atmospheric ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/290042a0
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