The isoprenoid hydrocarbons, phytane (C(20)H(42)) and pristane (C(19)H(40)), are present in the oil seeping from the Precambrian Nonesuch formation at the White Pine Mine, Michigan. Gas-liquid chromatography and mass spectrometry provide the isolation and identification procedures.

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http://dx.doi.org/10.1126/science.145.3629.263DOI Listing

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