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Organic matter in Silurian rocks from the Chernov uplift |
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| Institution: | (1) School of Geosciences, University of Sydney, Sydney, NSW, 2006, Australia;(2) Water and Environment Business Unit, Sinclair Knight Merz, 263, Adelaide Terrace, Perth, WA, 6000, Australia;(3) Australian Centre for Astrobiology, Department of Earth and Planetary Sciences, Macquarie University, Sydney, NSW, 2109, Australia;(4) Present address: School of Chemistry, University of Sydney, Sydney, NSW, 2006, Australia |
| Abstract: | This study presents data on the composition of organic matter from the Late Silurian sediments of the Chernov uplift. These sediments are characterized by low Corg contents, which may reach 1–3% in individual layers. A relatively high thermal maturity of organic matter is confirmed by polycyclic biomarker distributions and Rock-Eval pyrolyisis data. Despite its higher thermal maturity level (T max = 456°C), kerogen in carbonaceous shales from the Padymeityvis River exhibits good preservation of long-chain n-alkyl structures, which are readily identified in the 13C NMR spectra and by the molecular analysis of the kerogen pyrolysis products. |
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