A Neoproterozoic petroleum system in the Dalradian Supergroup, Scottish Caledonides

Timothy Bata*, John Parnell

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

Neoproterozoic petroleum systems occur in several parts of the world, based on organic-rich hydrocarbon source rocks deposited during the late Neoproterozoic high sea level. The Dalradian Supergroup in Argyll, Scotland, shows evidence for coupled source rock and reservoir rock. The Easdale Slate contains organic carbon, rich enough to be a good source rock. Pore spaces of the Scarba Conglomerate are filled with oil residue. Pyrite spatially associated with the oil residue may reflect microbial sulphate reduction. Despite greenschist-facies metamorphism, the Easdale Subgroup records a hitherto unrecognized petroleum system, which adds to a global picture of late Neoproterozoic hydrocarbon generation.

Original languageEnglish
Pages (from-to)145-148
Number of pages4
JournalJournal of the Geological Society
Volume171
Issue number2
Early online date12 Dec 2013
DOIs
Publication statusPublished - Mar 2014

Keywords

  • Scotland
  • rocks
  • glaciation
  • deposition
  • insights
  • Africa
  • basins
  • pyrite
  • ocean

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