ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Several organic-carbon-rich sediment samples of Quaternary to Pliocene age from the Peruvian upwelling area19 and a bituminous shale of Messinian age (upper Miocene) from the Vena del Gesso basin (located in the northern Apennines20) were extracted. Gas chromatographic analyses with dual flame ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/341640a0
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