ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The Big Cedar Ridge (BCR) fossil flora consists of three-dimensional organic films preserved in the basal 10-20 cm of a 4-5-m-thick bentonitic tuff. When discovered, the tuff had been mapped as part of the Paleocene Fort Union Formation5, but 40Ar/39Ar analysis of single crystals of euhedral ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/363342a0
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