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Alkyl substituted cyclic ethers in 2,300 M yr old Transvaal algal stromatoliteTwo cyclic ethers have been identified for the first time from insoluble polymer-like kerogen in a Precambrian rock by ozonolysis, gas chromatography, and mass spectrometry. The ethers are 2-n-propyl-3-methyltetrahydrofuran and 2-n-propyltetrahydropyran. These compounds could prove to be the oldest indigenous biochemical fossils. The sample was obtained 750 m stratigraphically above the base of the Transvaal Sequence from an outcrop approximately 315 km north-east of Johannesburg, South Africa.
Document ID
19750052323
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Zumberge, J. E.
Nagy, B.
(Arizona, University Tucson, Ariz., United States)
Date Acquired
August 8, 2013
Publication Date
June 26, 1975
Publication Information
Publication: Nature
Volume: 255
Subject Category
Geophysics
Accession Number
75A36395
Distribution Limits
Public
Copyright
Other

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