ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] SAMPLES of a volcanic tuff (Leakey I A) and of pumice lumps in a calcareous matrix (Leakey II) were sent to us by Mr Richard Leakey in July 1969 for an age determination feasibility study. Even if samples of pyroclastic rocks are completely fresh and otherwise suitable for potassium?argon age ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/226226a0
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