ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] Preliminary studies have now demonstrated the presence of minute amounts of carbohydrate as well as proteinaceous substances in bituminous sedimentary rocks ranging in age from Ordo vician to Tertiary. The reducing environment under which these sediments accumulated, coupled with the association ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/185234a0
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