ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] Corals, which may be dated back to about 500,000 yr BP by the uranium desequilibrium method, may be used to determine dates outside the range of 14C measurements. These corals also reflect sea level variations associated with temperature. Variations of foraminiferal associations5 or their isotopic ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/226631a0
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