ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] Measurements made by the lead method (see discussion of several determinations by Holmes3) and the strontium method4 show the age of pegmatites from south-eastern Manitoba as the greatest thus far measured. A like age is found by Hurley5, using helium age determinations, for an east-west orogenic ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/166149a0
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