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  • 1
    Call number: 10.1144/SP494 (e-book)
    In: Special publications / the Geological Society, London, No. 494
    Description / Table of Contents: A cross-border approach to exploration, appraisal and development is important in mature basins such as the North Sea, where the ‘low hanging fruit’ have long gone. This approach emphasizes the need to see the basin as one geological entity, in order to maximize economic recovery and prepare the area for the energy transition. This volume offers an up-to-date, ‘geology-without-borders’ view of the stratigraphy, sedimentology, tectonics and oil-and-gas exploration trends of the entire North Sea basin, along with the challenges associated with differences in data continuity and nomenclature across median lines. This volume includes overviews of cross-border play statistics, lithostratigraphic naming conventions and exploration performance through to new facies models for cross-border areas. As such, this volume will be a valuable reference for every geoscientist working in the North Sea for years to come.
    Type of Medium: 12
    Pages: 1 Online-Ressource (vi, 504 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 978-1-78620-457-8 , 9781786204578
    ISSN: 0305-8719
    Series Statement: Special publications / the Geological Society, London No. 494
    Language: English
    Note: Contents Acknowledgements Archer, S. G., Kombrink, H., Patruno, S., Chiarella, D., Jackson, C. A.-L. and Howell, J. A. / Cross-border petroleum geology in the North Sea: an introduction General North Sea Patruno, S., Kombrink, H. and Archer, S. G. / Cross-border stratigraphy of the Northern, Central and Southern North Sea: a comparative tectono-stratigraphic megasequence synthesis Kombrink, H. and Patruno, S. / The integration of public domain lithostratigraphic data into a series of cross-border North Sea well-penetration maps Quirk, D. G. and Archer, S. G. / Exploration play statistics in the Southern North Sea region of The Netherlands and UK Quirk, D. G. and Archer, S. G. / Exploration play statistics in the central–northern North Sea region of UK–Norway–Denmark Roberts, P., Jordan, O., Steen, Ø., Leppard, C., Janssen, J. S., Baudia, E., Ramm, A. and Helgesen, G. / One North Sea fairway analysis: revealing opportunities through data integration across scales Myers, K., Rouillard, P. and Zanella, E. / Exploration performance in the UK and Norwegian North Sea Quirk, D. G., Underhill, J. R., Gluyas, J. G., Howe, M. J., Wilson, H. A. M. and Anderson, S. A / low-carbon future for The North Sea Basin Paleozoic Boscolo Gallo, A., Kilhams, B., de Keijzer, M. and Nicolai, C. / Can thin coals be resolved in seismic data? An example of the challenges for Carboniferous (Visean to Westphalian) source-rock definition across the Elbow Spit Platform (Netherlands) and the Mid North Sea High (UK) through well synthetic modelling Doornenbal, J. C., Kombrink, H., Bouroullec, R., Dalman, R. A. F., De Bruin, G., Geel, C. R., Houben, A. J. P., Jaarsma, B., Juez-Larré, J., Kortekaas, M., Mijnlieff, H. F., Nelskamp, S., Pharaoh, T. C., Ten Veen, J. H., Ter Borgh, M., Van Ojik, K., Verreussel, R. M. C. H., Verweij, J. M. and Vis, G.-J. / New insights on subsurface energy resources in the Southern North Sea Basin area Daniels, S. E., Tucker, M. E., Mawson, M. J., Holdsworth, R. E., Long, J. J., Gluyas, J. G. and Jones, R. R. / Nature and origin of collapse breccias in the Zechstein of NE England: local observations with cross-border petroleum exploration and production significance, across the North Sea Scisciani, V., Patruno, S., D’Intino, N. and Esestime, P. / Paleozoic basin reactivation and inversion of the underexplored Northern North Sea platforms: a cross-border approach Mesozoic Archer, S. G., McKie, T., Andrews, S. D., Wilkins, A. D., Hutchison, M., Young-Ziolkowski, N., Osunde, C., Matheson, J., Thackrey, S., Lang, M., Sola, B., Mouritzen, C., Perrell, C., Greenwood, M., Mauritzen, E. and Tenepalli, S. / Triassic mudstones of the Central North Sea: cross-border characterization, correlation and their palaeoclimatic significance Gray, E., Hartley, A. and Howell, J. / The influence of stratigraphy and facies distribution on reservoir quality and production performance in the Triassic Skagerrak Formation of the UK and Norwegian Central North Sea Orre, L. T. E. and Folkestad, A. / Depositional environments of the Early to Middle Triassic northern North Sea in a syn-rift to a post-rift setting Galluccio, L., Foote, N., Bertouche, M., Kostic, B. and James, A. / Preliminary assessment of dolomite stringers in the Upper Jurassic Farsund Formation as a potential unconventional hydrocarbon reservoir Cenozoic Pernin, N., Feuilleaubois, L., Bird, T. and Reiser, C. / Identifying and de-risking near-field opportunities through reliable pre-stack broadband attributes: examples from the Paleocene North Sea (UK–Norway) injectites play Karstens, J., Müller, P., Berndt, C. and Patruno, S. / Deep-seated focused fluid migration as indicator for hydrocarbon leads in the East Shetland Platform, North Sea Province Medvedev, S., Hartz, E. H., Schmid, D. W., Zakariassen, E. and Varhaug, P. / Influence of glaciations on North Sea petroleum systems Index
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  • 2
    Call number: 10.1144/SP495 (e-book)
    In: Special publications / the Geological Society, London, No. 495
    Description / Table of Contents: This volume offers an up-to-date ‘geology-without-borders’ view of the stratigraphy, sedimentology, tectonics and oil-and-gas exploration trends of the entire Atlantic Margin and Barents Sea basin. The challenges associated with data continuity and nomenclature differences across median lines are discussed and mitigated. Examples of under-exploited cross-border plays and discoveries are discussed.
    Type of Medium: 12
    Pages: vi, 320 Seiten , Illustrationen, Diagramme, Karten
    ISBN: 978-1-78620-458-5 , 9781786204585
    ISSN: 0305-8719
    Series Statement: Special publications / the Geological Society, London No. 495
    Language: English
    Note: Contents Acknowledgements Legend for the cover image Chiarella, D., Archer, S. G., Howell, J. A., Jackson, C. A.-L., Kombrink, H. and Patruno, S. / Cross-border subsurface geology in the Atlantic Margin and the Barents Sea: an introduction Tectonic evolution Libak, A., Torabi, A. and Alaei, B. / Normal fault geometric attribute variations with lithology: examples from the Norwegian Barents Sea Anell, I., Indrevær, K. and Serck, C. S. / Influence of structural highs on Triassic deposition on the western Barents Shelf Kristensen, T. B., Rotevatn, A., Marvik, M., Henstra, G. A., Gawthorpe, R. L. and Ravnås, R. / Quantitative analysis of fault-and-fold growth in a transtensional basin: the Sørvestsnaget Basin, Western Barents Sea Trice, R., Hiorth, C. and Holdsworth, R. / Fractured basement play development on the UK and Norwegian rifted margins Millett, J. M., Manton, B. M., Zastrozhnov, D., Planke, S., Maharjan, D., Bellwald, B., Gernigon, L., Faleide, J. I., Jolley, D. W., Walker, F., Abdelmalak, M. M., Jerram, D. A., Myklebust, R., Kjølhamar, B. E., Halliday, J. and Birch-Hawkins, A. / Basin structure and prospectivity of the NE Atlantic volcanic rifted margin: cross-border examples from the Faroe–Shetland, Møre and Southern Vøring basins Stratigraphic, sedimentological and reservoir characterization Jones, G. E. D., Welbon, A. I. F., Mohammadlou, H., Sakharov, A., Ford, J., Needham, T. and Ottesen, C. / Complex stratigraphic fill of a small, confined syn-rift basin: an Upper Jurassic example from offshore mid-Norway Chiarella, D. and Joel, D. / Stratigraphic and sedimentological characterization of the Late Cretaceous post-rift intra Lange Sandstones of the Gimsan Basin and Grinda Graben (Halten Terrace, Norwegian Sea) Walker, F., Schofield, N., Millett, J., Jolley, D., Hole, M. and Stewart, M. / Paleogene volcanic rocks in the northern Faroe–Shetland Basin and Møre Marginal High: understanding lava field stratigraphy Klausen, T. G., Müller, R., Poyatos-Moré, M., Olaussen, S. and Stueland, E. / Tectonic, provenance and sedimentological controls on reservoir characteristics in the Upper Triassic–Middle Jurassic Realgrunnen Subgroup, SW Barents Sea Riis, F. and Wolff, A. / Use of pore pressure data from the Norwegian Continental Shelf to characterize fluid-flow processes in geological timescales Hunt, G. A., Williams, R., Charnock, M. A., Moss, A., Meltveit, J. and Florescu, D. / Geological and petrophysical applications of imaging infrared spectroscopy for mineralogical analysis of core and cuttings: examples from the North Sea, Norwegian Sea and Barents Sea Index
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  • 3
    Call number: 9/M 07.0421(494)
    In: Special publications / the Geological Society, London, No. 494
    Description / Table of Contents: A cross-border approach to exploration, appraisal and development is important in mature basins such as the North Sea, where the ‘low hanging fruit’ have long gone. This approach emphasizes the need to see the basin as one geological entity, in order to maximize economic recovery and prepare the area for the energy transition. This volume offers an up-to-date, ‘geology-without-borders’ view of the stratigraphy, sedimentology, tectonics and oil-and-gas exploration trends of the entire North Sea basin, along with the challenges associated with differences in data continuity and nomenclature across median lines. This volume includes overviews of cross-border play statistics, lithostratigraphic naming conventions and exploration performance through to new facies models for cross-border areas. As such, this volume will be a valuable reference for every geoscientist working in the North Sea for years to come.
    Type of Medium: Monograph available for loan
    Pages: vi, 504 Seiten , Illustrationen, Diagramme, Karten
    ISBN: 978-1-78620-457-8 , 9781786204578
    ISSN: 0305-8719
    Series Statement: Special publications / the Geological Society, London No. 494
    Language: English
    Note: Contents Acknowledgements Archer, S. G., Kombrink, H., Patruno, S., Chiarella, D., Jackson, C. A.-L. and Howell, J. A. / Cross-border petroleum geology in the North Sea: an introduction General North Sea Patruno, S., Kombrink, H. and Archer, S. G. / Cross-border stratigraphy of the Northern, Central and Southern North Sea: a comparative tectono-stratigraphic megasequence synthesis Kombrink, H. and Patruno, S. / The integration of public domain lithostratigraphic data into a series of cross-border North Sea well-penetration maps Quirk, D. G. and Archer, S. G. / Exploration play statistics in the Southern North Sea region of The Netherlands and UK Quirk, D. G. and Archer, S. G. / Exploration play statistics in the central–northern North Sea region of UK–Norway–Denmark Roberts, P., Jordan, O., Steen, Ø., Leppard, C., Janssen, J. S., Baudia, E., Ramm, A. and Helgesen, G. / One North Sea fairway analysis: revealing opportunities through data integration across scales Myers, K., Rouillard, P. and Zanella, E. / Exploration performance in the UK and Norwegian North Sea Quirk, D. G., Underhill, J. R., Gluyas, J. G., Howe, M. J., Wilson, H. A. M. and Anderson, S. A / low-carbon future for The North Sea Basin Paleozoic Boscolo Gallo, A., Kilhams, B., de Keijzer, M. and Nicolai, C. / Can thin coals be resolved in seismic data? An example of the challenges for Carboniferous (Visean to Westphalian) source-rock definition across the Elbow Spit Platform (Netherlands) and the Mid North Sea High (UK) through well synthetic modelling Doornenbal, J. C., Kombrink, H., Bouroullec, R., Dalman, R. A. F., De Bruin, G., Geel, C. R., Houben, A. J. P., Jaarsma, B., Juez-Larré, J., Kortekaas, M., Mijnlieff, H. F., Nelskamp, S., Pharaoh, T. C., Ten Veen, J. H., Ter Borgh, M., Van Ojik, K., Verreussel, R. M. C. H., Verweij, J. M. and Vis, G.-J. / New insights on subsurface energy resources in the Southern North Sea Basin area Daniels, S. E., Tucker, M. E., Mawson, M. J., Holdsworth, R. E., Long, J. J., Gluyas, J. G. and Jones, R. R. / Nature and origin of collapse breccias in the Zechstein of NE England: local observations with cross-border petroleum exploration and production significance, across the North Sea Scisciani, V., Patruno, S., D’Intino, N. and Esestime, P. / Paleozoic basin reactivation and inversion of the underexplored Northern North Sea platforms: a cross-border approach Mesozoic Archer, S. G., McKie, T., Andrews, S. D., Wilkins, A. D., Hutchison, M., Young-Ziolkowski, N., Osunde, C., Matheson, J., Thackrey, S., Lang, M., Sola, B., Mouritzen, C., Perrell, C., Greenwood, M., Mauritzen, E. and Tenepalli, S. / Triassic mudstones of the Central North Sea: cross-border characterization, correlation and their palaeoclimatic significance Gray, E., Hartley, A. and Howell, J. / The influence of stratigraphy and facies distribution on reservoir quality and production performance in the Triassic Skagerrak Formation of the UK and Norwegian Central North Sea Orre, L. T. E. and Folkestad, A. / Depositional environments of the Early to Middle Triassic northern North Sea in a syn-rift to a post-rift setting Galluccio, L., Foote, N., Bertouche, M., Kostic, B. and James, A. / Preliminary assessment of dolomite stringers in the Upper Jurassic Farsund Formation as a potential unconventional hydrocarbon reservoir Cenozoic Pernin, N., Feuilleaubois, L., Bird, T. and Reiser, C. / Identifying and de-risking near-field opportunities through reliable pre-stack broadband attributes: examples from the Paleocene North Sea (UK–Norway) injectites play Karstens, J., Müller, P., Berndt, C. and Patruno, S. / Deep-seated focused fluid migration as indicator for hydrocarbon leads in the East Shetland Platform, North Sea Province Medvedev, S., Hartz, E. H., Schmid, D. W., Zakariassen, E. and Varhaug, P. / Influence of glaciations on North Sea petroleum systems Index
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  • 4
    Call number: 9/M 07.0421(495)
    In: Special publications / the Geological Society, London, No. 495
    Description / Table of Contents: This volume offers an up-to-date ‘geology-without-borders’ view of the stratigraphy, sedimentology, tectonics and oil-and-gas exploration trends of the entire Atlantic Margin and Barents Sea basin. The challenges associated with data continuity and nomenclature differences across median lines are discussed and mitigated. Examples of under-exploited cross-border plays and discoveries are discussed.
    Type of Medium: Monograph available for loan
    Pages: vi, 320 Seiten , Illustrationen, Diagramme, Karten
    ISBN: 978-1-78620-458-5 , 9781786204585
    ISSN: 0305-8719
    Series Statement: Special publications / the Geological Society, London No. 495
    Language: English
    Note: Contents Acknowledgements Legend for the cover image Chiarella, D., Archer, S. G., Howell, J. A., Jackson, C. A.-L., Kombrink, H. and Patruno, S. / Cross-border subsurface geology in the Atlantic Margin and the Barents Sea: an introduction Tectonic evolution Libak, A., Torabi, A. and Alaei, B. / Normal fault geometric attribute variations with lithology: examples from the Norwegian Barents Sea Anell, I., Indrevær, K. and Serck, C. S. / Influence of structural highs on Triassic deposition on the western Barents Shelf Kristensen, T. B., Rotevatn, A., Marvik, M., Henstra, G. A., Gawthorpe, R. L. and Ravnås, R. / Quantitative analysis of fault-and-fold growth in a transtensional basin: the Sørvestsnaget Basin, Western Barents Sea Trice, R., Hiorth, C. and Holdsworth, R. / Fractured basement play development on the UK and Norwegian rifted margins Millett, J. M., Manton, B. M., Zastrozhnov, D., Planke, S., Maharjan, D., Bellwald, B., Gernigon, L., Faleide, J. I., Jolley, D. W., Walker, F., Abdelmalak, M. M., Jerram, D. A., Myklebust, R., Kjølhamar, B. E., Halliday, J. and Birch-Hawkins, A. / Basin structure and prospectivity of the NE Atlantic volcanic rifted margin: cross-border examples from the Faroe–Shetland, Møre and Southern Vøring basins Stratigraphic, sedimentological and reservoir characterization Jones, G. E. D., Welbon, A. I. F., Mohammadlou, H., Sakharov, A., Ford, J., Needham, T. and Ottesen, C. / Complex stratigraphic fill of a small, confined syn-rift basin: an Upper Jurassic example from offshore mid-Norway Chiarella, D. and Joel, D. / Stratigraphic and sedimentological characterization of the Late Cretaceous post-rift intra Lange Sandstones of the Gimsan Basin and Grinda Graben (Halten Terrace, Norwegian Sea) Walker, F., Schofield, N., Millett, J., Jolley, D., Hole, M. and Stewart, M. / Paleogene volcanic rocks in the northern Faroe–Shetland Basin and Møre Marginal High: understanding lava field stratigraphy Klausen, T. G., Müller, R., Poyatos-Moré, M., Olaussen, S. and Stueland, E. / Tectonic, provenance and sedimentological controls on reservoir characteristics in the Upper Triassic–Middle Jurassic Realgrunnen Subgroup, SW Barents Sea Riis, F. and Wolff, A. / Use of pore pressure data from the Norwegian Continental Shelf to characterize fluid-flow processes in geological timescales Hunt, G. A., Williams, R., Charnock, M. A., Moss, A., Meltveit, J. and Florescu, D. / Geological and petrophysical applications of imaging infrared spectroscopy for mineralogical analysis of core and cuttings: examples from the North Sea, Norwegian Sea and Barents Sea Index
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  • 5
    Keywords: North Sea ; stratigraphy ; sedimentology ; tectonics ; oil exploration ; gas exploration
    Description / Table of Contents: 13 September 2019 --- Depositional environments of the Early to Middle Triassic northern North Sea in a syn-rift to a post-rift setting / Linn T. E. Orre and Atle Folkestad / Geological Society, London, Special Publications, 494, 13 September 2019, https://doi.org/10.1144/SP494-2019-64 --- 6 September 2019 --- Identifying and de-risking near-field opportunities through reliable pre-stack broadband attributes: examples from the Paleocene North Sea (UK–Norway) injectites play / Noémie Pernin, Laurent Feuilleaubois, Tim Bird and Cyrille Reiser / Geological Society, London, Special Publications, 494, 6 September 2019, https://doi.org/10.1144/SP494-2019-11 --- 30 August 2019 --- Deep-seated focused fluid migration as indicator for hydrocarbon leads in the East Shetland Platform, North Sea Province / Jens Karstens, Philipp Müller, Christian Berndt and Stefano Patruno / Geological Society, London, Special Publications, 494, 30 August 2019, https://doi.org/10.1144/SP494-2019-26 --- 22 August 2019 --- One North Sea fairway analysis: revealing opportunities through data integration across scales / Paul Roberts, Oliver Jordan, Øyvind Steen, Christopher Leppard, Jose Salvadores Janssen, Emmanuelle Baudia, Alice Ramm and Geir Helgesen / Geological Society, London, Special Publications, 494, 22 August 2019, https://doi.org/10.1144/SP494-2019-5 --- New insights on subsurface energy resources in the Southern North Sea Basin area / J. C. Doornenbal, H. Kombrink, R. Bouroullec, R. A. F. Dalman, G. De Bruin, C. R. Geel, A. J. P. Houben, B. Jaarsma, J. Juez-Larré, M. Kortekaas, H. F. Mijnlieff, S. Nelskamp, T. C. Pharaoh, J. H. Ten Veen, M. Ter Borgh, K. Van Ojik, R. M. C. H. Verreussel, J. M. Verweij and G.-J. Vis / Geological Society, London, Special Publications, 494, 22 August 2019, https://doi.org/10.1144/SP494-2018-178 --- 19 August 2019 --- Preliminary assessment of dolomite stringers in the Upper Jurassic Farsund Formation as a potential unconventional hydrocarbon reservoir / Laura Galluccio, Nicolas Foote, Meriem Bertouche, Boris Kostic and Andrea James / Geological Society, London, Special Publications, 494, 19 August 2019, https://doi.org/10.1144/SP494-2018-184 --- Influence of glaciations on North Sea petroleum systems / Sergei Medvedev, Ebbe H. Hartz, Daniel W. Schmid, Erik Zakariassen and Per Varhaug / Geological Society, London, Special Publications, 494, 19 August 2019, https://doi.org/10.1144/SP494-2018-183 --- 17 July 2019 --- Exploration Performance in the UK and Norwegian North Sea / Keith Myers, Pierrick Rouillard and Edwige Zanella / Geological Society, London, Special Publications, 494, https://doi.org/10.1144/SP494-2018-193
    Edition: online first
    Language: English
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  • 6
    Keywords: Atlantic Margin ; Barents Sea ; stratigraphy ; sedimentology ; tectonics ; oil exploration ; gas exploration
    Description / Table of Contents: 12 September 2019 --- Influence of structural highs on Triassic deposition on the western Barents Shelf / I. Anell, K. Indrevær and C. S. Serck / Geological Society, London, Special Publications, 495, 12 September 2019, https://doi.org/10.1144/SP495-2018-76 --- 27 August 2019 --- Tectonic, provenance and sedimentological controls on reservoir characteristics in the Upper Triassic–Middle Jurassic Realgrunnen Subgroup, SW Barents Sea / Tore Grane Klausen, Reidar Müller, Miquel Poyatos-Moré, Snorre Olaussen and Eirik Stueland / Geological Society, London, Special Publications, 495, 27 August 2019, https://doi.org/10.1144/SP495-2018-165 --- 14 August 2019 --- Normal fault geometric attribute variations with lithology: examples from the Norwegian Barents Sea / A. Libak, A. Torabi and B. Alaei / Geological Society, London, Special Publications, 495, 30 July 2019, https://doi.org/10.1144/SP495-2018-164 --- 19 July 2019 --- Fractured basement play development on the UK and Norwegian rifted margins / Robert Trice, Cecilie Hiorth and Robert Holdsworth / Geological Society, London, Special Publications, 495, https://doi.org/10.1144/SP495-1
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    Language: English
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  • 7
    Publication Date: 2016-06-09
    Description: The section of Gorgo a Cerbara in Italy has been proposed as the Global Stratotype Section and Point (GSSP) for the Barremian/Aptian boundary (Lower Cretaceous). This section displays the transition between the white pelagic limestones of the Maiolica Formation (Tithonian–lowermost Aptian) and the polychrome marls of the Marne a Fucoidi Formation (Aptian–Albian). The Oceanic Anoxic Event 1a (OAE 1a) anoxic horizon (Selli Level) is located in the latter formation. Here, we report for the first time a palynostratigraphical assessment of this key section, with a very high resolution in the Selli Level. Palynomorph groups recorded include acritarchs, microforaminiferal test linings, 58 dinoflagellate cysts, 44 sporomorph taxa, and freshwater fungal and algal bodies. These include such biostratigraphical markers as Rhynchodiniopsis aptiana and Odontochitina operculata among the dinoflagellate cysts and Afropollis cf. jardinus among sporomorphs. Biostratigraphical events recognised allow comparisons with previously studied successions in other similar areas (e.g. Cismon apticore in the Southern Alps, Italy). The distribution of taxa recorded in the Gorgo a Cerbara section is generally consistent with published data, but several differences between the assemblages recorded in the Cismon apticore and in this study were noted. The best global markers for the Barremian/Aptian boundary are represented by the disappearance of R. aptiana and by the appearance of O. operculata , but in this section these occurred 0.65–1.35 Myr after the magnetostratigraphically defined boundary, within the Selli Level. The angiosperm pollen A . cf. jardinus is recorded only within the Selli Level (from 1.4 to 1.6 Myr after the Barremian/Aptian boundary), consistent with an Early Aptian age. A cluster of 10 extremely short-ranging dinoflagellate cyst excursion taxa appear in this section coincident with the Nannoconid Crisis event and its associated thermal peak, ca. 10–20 kyr before the onset of the OAE 1a. Several short-ranging Pteridophyta spore species are found only within the Selli Level itself.
    Print ISSN: 0191-6122
    Electronic ISSN: 1558-9188
    Topics: Geosciences
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  • 8
    Publication Date: 2019
    Description: 〈p〉The Caledonian-Variscan orogens in Northern Europe and the Alpine-age Apennine range of Italy are classical examples of thrust belts that were developed at the expense of formerly rifted, passive continental margins that subsequently experienced various degrees of post-orogenic collapse and extension. The outer zones of orogenic belts and their adjoining foreland domains and regions where the effects of superposed deformations are mild-to-very mild, making it possible to recognise and separate structures produced at different times and to correctly establish their chronology and relationships. In this paper we integrate subsurface data (2- and 3D seismic reflection and well-logs), mainly from the North Sea, and structural field evidence, mainly from the Apennines, with the aim to reconstruct and refine the structural evolution of these two provinces that, in spite of their different ages and present-day structural framework, share repeated pulses of alternating extension and compression. The main outcome of this investigation is that in both scenarios, during repeated episodes of inversion that are a characteristic feature of the Wilson Cycle, inherited basement structures were effective in controlling stress localisation along faults affecting younger sedimentary cover rocks.〈/p〉
    Print ISSN: 0375-6440
    Electronic ISSN: 2041-4927
    Topics: Geosciences
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  • 9
    Publication Date: 2018-05-07
    Description: Thick Paleozoic successions are buried under the Greater East Shetland Platform (ESP) and Mid North Sea High (MNSH), two large underexplored platform regions flanking the structural depocentres of the North Sea. Here, newly acquired broadband seismic data are interpreted to provide a novel assessment of the regional tectonostratigraphic evolution and its influence on hydrocarbon prospectivity. Numerous working reservoir units are present over these two frontier areas, together with large Paleozoic traps. Hydrocarbon charge occurs either via a likely maximum 30–40 km lateral migration from the Jurassic/Carboniferous basinal source kitchens or, possibly, via vertical/lateral migration from deeper Devono-Carboniferous source intervals. The two regions underwent a largely similar evolution, consisting of at least eight successive switch-overs between regional compression/uplift and extension/subsidence in the last 420 myr. However, on the Greater MNSH, the lack of significant Permo-Triassic rifting probably resulted in too little subsidence for the lower Carboniferous interval to reach sufficient burial depth for gas maturation. Seep and fluid escape data suggest a working ‘deep’ source in the Greater ESP. Here, the presence of localized Permo-Triassic intra-platform grabens and half-grabens provided sufficient subsidence for the oil-prone middle Devonian unit to eventually enter the oil maturation window and faults provide easy conduits for the upwards migration of oil.
    Print ISSN: 0305-8719
    Electronic ISSN: 2041-4927
    Topics: Geosciences
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  • 10
    Publication Date: 2019
    Description: 〈span〉The geometry of basin-margin strata documents changes in water depth, slope steepness, and sedimentary facies distributions. Their stacking patterns are widely used to define shelf-edge trajectories, which reflect long-term variations in sediment supply and relative sea-level change. Here, we present a new method to reconstruct the geometries and trajectories of clinoform-bearing basin-margin successions. Our sequential decompaction technique explicitly accounts for downdip lithology variations, which are inherent to basin-margin stratigraphy. Our case studies show that preferential compaction of distal, fine-grained foresets and bottomsets results in a vertical extension of basin-margin strata and a basinward rotation of the original shelf-edge trajectory. We discuss the implications these effects have for sea-level reconstructions and for predicting the timing of sediment transfer to the basin floor.〈/span〉
    Print ISSN: 0091-7613
    Electronic ISSN: 1943-2682
    Topics: Geosciences
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