Abstract / Description of output
Oil-bearing fluid inclusions trapped within authigenic K-feldspar in Late Jurassic reservoirs throughout the UK Atlantic margin are evidence for an early oil migration event from Late Jurassic source rocks in the Faeroe-Shetland Basin. Previous compound-specific isotope studies confirm the hydrocarbon provenance. Temperature-composition-time data show that the Late Jurassic source rocks were oil mature 113 +/- 3.5 Ma (2 sigma). This new (40)/Ar/Ar-39 atithigenic K-feldspar age shows that the Late Jurassic source rocks were oil mature 30-40 m.y. prior to current estimates.
Original language | English |
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Pages (from-to) | 75-78 |
Number of pages | 4 |
Journal | Geology |
Volume | 38 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2010 |