ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] It has been suggested that the circum-Antarctic current first became operative during either the late Oligocene1 about 30 Myr BP, the Middle Oligocene2,3, or the Lower Oligocene4. The first two suggestions were based apparently on interpretations of a late Palaeogene regional unconformity in the ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/252371a0