ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] On the basis of measurements of carbon isotopes on rocks of various ages, early models assumed that the mean S13C (carbonate) values were constant3"6. In recent years, however, descriptions of secular variation of S13C values in carbonate rocks during the Mesozoic7'8 and Cenozoic9*10 have ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/297389a0