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Source rock maturation owing to igneous intrusion in rifted margin petroleum systems

Muirhead, D. K ; Bowden, S. A ; Parnell, J ; Schofield, N

Journal of the Geological Society, 2017-11, Vol.174 (6), p.979-987 [Periódico revisado por pares]

Oxford: Geological Society of London

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Título:
Source rock maturation owing to igneous intrusion in rifted margin petroleum systems
Autor: Muirhead, D. K ; Bowden, S. A ; Parnell, J ; Schofield, N
Assuntos: Analytical methods ; aureoles ; Basins ; Birsay Bay ; Carboniferous ; chromatograms ; continental margin ; Devonian ; Economic geology ; energy sources ; Europe ; Geochemistry ; Great Britain ; Hebrides ; Highland region Scotland ; host rocks ; hydrocarbons ; Igneous intrusions ; Igneous rocks ; Inner Hebrides ; Interactions ; Intrusion ; intrusions ; Inverness-shire Scotland ; ion chromatograms ; Isle of Skye ; Jurassic ; Maturation ; maturity ; Mesozoic ; Midland Valley ; Natural gas ; organic compounds ; Orkney Islands ; Paleozoic ; Petroleum ; plate tectonics ; Raman spectra ; rifting ; Rock ; Rocks ; Scotland ; Sedimentary basins ; Sediments ; source rocks ; spectra ; Spectroscopic techniques ; Spectroscopy ; Staffin Bay ; structural controls ; temperature ; Temperature effects ; thermal alteration ; thermal history ; thermal maturity ; thermal regime ; United Kingdom ; Volcanic activity ; Volcanism ; Western Europe
É parte de: Journal of the Geological Society, 2017-11, Vol.174 (6), p.979-987
Descrição: Intrusive and extrusive volcanism is a common feature associated with many sedimentary basins formed along rifted margins. As a result, igneous intrusions are often found in potential hydrocarbon-producing source rock horizons. Although direct thermal effects on source rocks have been studied in detail, few studies have dealt with understanding the thermal effects on source rocks across a range of different thermal histories prior to intrusion. The metamorphic aureoles of three intrusions have been characterized for source rock maturation using organic geochemistry and Raman spectroscopy. Results show that a unique combination of organic geochemical and Raman spectroscopic techniques adds further insight to intrusion and host rock interactions, with an effective oil window and extended gas window located in the aureole of an immature and mature source rock respectively. Such varied and potentially beneficial geochemical responses further the need to re-evaluate source rock intervals in rifted margin basins.
Editor: Oxford: Geological Society of London
Idioma: Inglês

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Source rock maturation owing to igneous intrusion in rifted margin petroleum systems

Muirhead, D. K ; Bowden, S. A ; Parnell, J ; Schofield, N

Oxford: Geological Society of London

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