40Ar/39Ar dating of oil generation and migration at complex continental margins

Darren F. Mark; John Parnell; Simon P. Kelley; Martin R.  Lee; Sarah C. Sherlock

doi:10.1130/G30237.1

40Ar/39Ar dating of oil generation and migration at complex continental margins

Darren F. Mark
, John Parnell
, Simon P. Kelley
, Martin R. Lee
, Sarah C. Sherlock

Geology and Geophysics

Scottish Universities Environmental Research Centre (SUERC)
Open University Milton Keynes
University of Glasgow

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

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
Pages (from-to)	75-78
Number of pages	4
Journal	Geology
Volume	38
Issue number	1
DOIs	https://doi.org/10.1130/G30237.1
Publication status	Published - Jan 2010

Keywords

UK Atlantic margin
authigenic K-feldspar
Faroe-Shetland basin
fluid-flow
thermal history
West
AR
inclusions
diffusion
events

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10.1130/G30237.1

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title = "40Ar/39Ar dating of oil generation and migration at complex continental margins",

abstract = "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.",

keywords = "UK Atlantic margin, authigenic K-feldspar, Faroe-Shetland basin, fluid-flow, thermal history, West, AR, inclusions, diffusion, events",

author = "Mark, \{Darren F.\} and John Parnell and Kelley, \{Simon P.\} and Lee, \{Martin R.\} and Sherlock, \{Sarah C.\}",

year = "2010",

month = jan,

doi = "10.1130/G30237.1",

language = "English",

volume = "38",

pages = "75--78",

journal = "Geology",

issn = "0091-7613",

publisher = "Geological Society of America",

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T1 - 40Ar/39Ar dating of oil generation and migration at complex continental margins

AU - Mark, Darren F.

AU - Parnell, John

AU - Kelley, Simon P.

AU - Lee, Martin R.

AU - Sherlock, Sarah C.

PY - 2010/1

Y1 - 2010/1

N2 - 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.

AB - 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.

KW - UK Atlantic margin

KW - authigenic K-feldspar

KW - Faroe-Shetland basin

KW - fluid-flow

KW - thermal history

KW - West

KW - AR

KW - inclusions

KW - diffusion

KW - events

U2 - 10.1130/G30237.1

DO - 10.1130/G30237.1

M3 - Article

SN - 0091-7613

VL - 38

SP - 75

EP - 78

JO - Geology

JF - Geology

IS - 1

ER -

40Ar/39Ar dating of oil generation and migration at complex continental margins

Abstract

Keywords

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