ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Samples of the C4 shrub Atriplex confertifolia recovered from packrat middens in the western United States provide a record of changes in the 13C/12C ratio (δ13C) of atmospheric carbon dioxide. During the last ice age, atmospheric CO2 ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/357461a0