Identification of carotane breakdown products in the 1.64 billion year old Barney Creek Formation, McArthur Basin, northern Australia
Some of the oldest, indisputably indigenous, and thermally exceptionally well preserved biomarkers occur in the uppermost sections of the 1.64billion year old (Ga) Barney Creek Formation (BCF) of the McArthur Basin in northern Australia. These rocks preserve more than 22 different C40 carotenoid derivatives, including the saturated hydrocarbons β-carotane, γ-carotane and lycopane. However, in deeper sections of the BCF, saturated carotenoid derivatives were not detected. To determine whether...[Show more]
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