Ubiquity of hydrocarbons in nature: Aliphatic hydrocarbons in weathered limestone

Details Ubiquity of hydrocarbons in nature: Aliphatic hydrocarbons in weathered limestone Ubiquity of hydrocarbons in nature: Aliphatic hydrocarbons in weathered limestone

Sep 1972

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972gecoa..36..953n&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 36, Issue 9, pp.953-959

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Scientific paper

The aliphatic hydrocarbons in two specimens of limestone (one from Texas and the other from Italy) which were weathered in place as parts of building structures have been investigated using gas chromatography and gas chromatography-mass spectrometry. The hydrocarbons in 1. (i) the limestone from Texas and 2. (ii) algae cultured from this limestone have similar distributions, i.e. the predominating hydrocarbon in both cases is n -C 17 , thus indicating that most of the aliphatic hydrocarbons in the limestone may be derived from recent algal growth. The hydrocarbons in the limestone from Italy, in which n -C 17 is a maximum but which also include relatively large amounts of pristane, phytane and other aliphatic hydrocarbons, appear to be a mixture of in situ biogenically derived hydrocarbons and extraneously derived fossil hydrocarbons.

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