Lyell Collection
Geological Society, London, Special Publications
Lyell Centre  |   Lyell Collection  |   Subscriptions   |   Geological Society  |   Email alerts  |   Online bookshop  |   Help

Keywords:
Author:
Advanced search>>
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Murphy, N. J.
Right arrow Articles by Armstrong, J. P.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Geological Society, London, Special Publications; 1995; v. 93; p. 193-207;
DOI: 10.1144/GSL.SP.1995.093.01.14
© 1995 Geological Society of London

Toarcian source rock potential in the North Celtic Sea Basin, offshore Ireland

N. J. Murphy1, M. J. Sauer2 & J. P. Armstrong2

1 Petroleum Affairs Division, Department of Transport, Energy and Communications, Beggars Bush, Haddington Road, Dublin 4, Ireland
2 James Armstrong and Associates, 30 Linden Walk, Prestatyn, Clwyd LL19 9EB, UK

Conditions favourable to the development and preservation of rich oil-prone source rocks are demonstrated for the uppermost Lower Jurassic stage, the Toarcian, in the Irish Sector of the North Celtic Sea Basin (and adjacent South Celtic Sea Basin), located offshore to the south of Ireland. An integrated approach, involving geological and geochemical data and techniques, has permitted the quantification of source rock potential. Wireline log responses in conjunction with existing geochemical analyses have defined net thickness, quality and richness for potential source beds. Up to 450 ft of very good to rich source rocks, capable of generating liquid hydrocarbons, are calculated for marine claystones of Early and Middle-Late Toarcian age. The thickest and best quality source rocks are predicted to occur in Toarcian depocentres, mostly situated along the axis of the North Celtic Sea Basin. One-dimensional burial history modelling suggests that substantial quantities of hydrocarbons were expelled from basinal areas towards the end of the Cretaceous.





This article has been cited by other articles:


Home page
 Geological Society, London, Special PublicationsHome page
A. G. Dore, D. V. Corcoran, and I. C. Scotchman
Prediction of the hydrocarbon system in exhumed basins, and application to the NW European margin
Geological Society, London, Special Publications, 2002; 196: 401 - 429.
[Abstract] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
I. C. Scotchman
Petroleum geochemistry of the Lower and Middle Jurassic in Atlantic margin basins of Ireland and the UK
Geological Society, London, Special Publications, 2001; 188: 31 - 60.
[Abstract] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
J. M. O'Sullivan
The geology and geophysics of the SW Kinsale gas accumulation
Geological Society, London, Special Publications, 2001; 188: 189 - 199.
[Abstract] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
S. Johnston, A. G. Dore, and A. M. Spencer
The Mesozoic evolution of the southern North Atlantic region and its relationship to basin development in the south Porcupine Basin, offshore Ireland
Geological Society, London, Special Publications, 2001; 188: 237 - 263.
[Abstract] [PDF]