The NE Atlantic margin; implications of late Mesozoic and Cenozoic events for hydrocarbon prospectivity

Doré, A. G.; Lundin, Erik; Birkeland, Ø.; Eliassen, P. E.; Jensen, L. N.

doi:10.1144/petgeo.3.2.117

Cited by 82 publications

(34 citation statements)

References 32 publications

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“…In contrast, the Bivrost Lineament is well expressed in the basement structure but lacks an outboard fracture zone according to the interpretation of Olesen et al (2007), who relate a previously proposed Bivrost Fracture Zone to data artefacts. Doré et al (1997) suggest that the transfer zones are likely linked to the structural heritage of the region.…”

Section: Mid-norwegian Continental Marginmentioning

confidence: 99%

A review of the NE Atlantic conjugate margins based on seismic refraction data

Funck

Gaina

Geissler

et al. 2016

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The NE Atlantic region evolved through several rift episodes, leading to break-up in the Eocene that was associated with voluminous magmatism along the conjugate margins of East Greenland and NW Europe. Existing seismic refraction data provide good constraints on the overall tectonic development of the margins, despite data gaps at the NE Greenland shear margin and the southern Jan Mayen microcontinent. The maximum thickness of the initial oceanic crust is 40 km at the Greenland-Iceland-Faroe Ridge, but decreases with increasing distance to the Iceland plume. High-velocity lower crust interpreted as magmatic underplating or sill intrusions is observed along most margins but disappears north of the East Greenland Ridge and the Lofoten margin, with the exception of the Vestbakken Volcanic Province at the SW Barents Sea margin. South of the narrow Lofoten margin, the European side is characterized by wide margins. The opposite trend is seen in Greenland, with a wide margin in the NE and narrow margins elsewhere. The thin crust beneath the basins is generally underlain by rocks with velocities of .7 km s 21 interpreted as serpentinized mantle in the Porcupine and southern Rockall basins; while off Norway, alternative interpretations such as eclogite bodies and underplating are also discussed.Gold Open Access: This article is published under the terms of the CC-BY 3.0 license.

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Section: Mid-norwegian Continental Marginmentioning

confidence: 99%

A review of the NE Atlantic conjugate margins based on seismic refraction data

Funck

Gaina

Geissler

et al. 2016

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“…1). The basin is a major Cretaceous-Tertiary depocentre (Dore´et al, 1997) and contains a series of NE-trending sub-basins (Fig. 2) formed by a complex tectonic history involving multiple phases of extension and volcanism (Carr and Scotchman, 2003).…”

Section: Geological Setting and Depositional Environmentmentioning

confidence: 99%

“…Factors that influenced sand distribution and trap formation in the Tertiary deposits include (Ebdon et al, 1995): (1) depositional limits of the Early Tertiary submarine fans were influenced by the underlying syn-rift, fault-block topography, which was accentuated by differential compaction of the thick, intervening Late Cretaceous mudstones, (2) fan deposition was initially aggradational (during the Paleocene), followed by periods of progradation (post Paleocene), (3) intra-Paleocene tectonic events contributed to slope instability and the emplacement of large gravity slides, (4) the dominant northwesterly dip in the Late Paleocene and younger successions reflects regional thermal subsidence, which is mirrored by an oppositely dipping slope on the northwestern side of the basin, and (5) Late Tertiary structural inversion (Boldreel and Andersen, 1994;Dore´et al, 1997), which was marked by two regionally significant compressional events (Early Oligocene and Late Miocene).…”

Section: Geological Setting and Depositional Environmentmentioning

confidence: 99%

Diagenesis and reservoir quality evolution of palaeocene deep-water, marine sandstones, the Shetland-Faroes Basin, British continental shelf

Mansurbeg

Morad

Salem

et al. 2008

Marine and Petroleum Geology

176

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“…Modern insights into plate tectonic evolution, structural development, sedimentology, paleoceanography, and geochemistry of strata of late Mesozoic age along the Norwegian shelf, including sediments of commercial importance, are owing to these investigations (Brekke, Dahlgren, Nyland, & Magnus, 1999;Langrock et al, 2003b;Lipinski, Warning, & Brumsack, 2003;Mutterlose et al, 2003;Smelror, Dypvik, & Mørk, 2001;Swientek & Ricken, 2001). Finegrained sediments of Late Jurassic to Early Cretaceous age occur along the eastern margin of the Norwegian-Greenland-Seaway and adjacent marginal seas (Å rhus, 1991;Doré, 1991;Doré, Lundin, Birkeland, Eliassen, & Jensen, 1997;Bugge et al, 2002;Langrock, Stein, Lipinski, & Brumsack, 2003a,b;Leith et al, 1990;Mutterlose et al, 2003;Smelror et al, 1994;Wagner & Hölemann, 1995;Worsley et al, 1988). Drilling also recovered sediments that are exceptionally rich in organic carbon and provide moderate to very good source rock potential for liquid and gaseous petroleum.…”

Section: Introductionmentioning

confidence: 99%

Origin of marine petroleum source rocks from the Late Jurassic to Early Cretaceous Norwegian Greenland Seaway—evidence for stagnation and upwelling

Langrock

Stein

2004

Marine and Petroleum Geology

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Forty samples were selected from Late Jurassic to early Cretaceous black shales of IKU sites 6307/07-U-02 and 6814/04-U-02, located on the mid-Norwegian shelf, for a detailed maceral analysis. The penetrated rocks include the Spekk and Hekkingen formations, which represent major potential petroleum source rocks in the region. It was our first objective to reveal the type of organic material that has produced the source rock potential of these sediments. The results suggest that black shale formation has occurred in two different paleoceanographic settings, i.e. in a "high-productive" and an "anoxic/stagnant" environment, which was supported by inorganic and sedimentological data. In addition, new data for estimating sedimentation rates (SR) gave impulse for using accumulation rates to access the authentic organic carbon flux to the sediment.Organic carbon accumulation rates are relatively low but similar to mid-Cretaceous black shales from other ocean areas (average 10 -300 mg/cm 2 /ka). Supported by redox-sensitive Re/Mo ratios, SR/TOC relationships, and paleoproductivity estimates we suggest that black shale formation in the Spekk Formation has followed largely the conditions of the "stagnation model", whereas the Hekkingen Formation is likely an example for the "productivity model".4. Origin of marine petroleum source rocks ... IntroductionThe geological understanding of the middle and upper Norwegian shelf (Fig. 4-1) has been improved largely by prospective and explorative operations during the 1980s and early 1990s and is summarized in drilling reports and subsequent papers, e.g. by Skarbø et al. (1988), Worsley et al. (1988), Hansen et al. (1991), Leith et al. (1990), Jongepier et al. (1996. Modern insights in plate tectonic evolution, structural properties, sedimentology, paleoceanography, and geochemistry of late Mesozoic strata along the Norwegian shelf, including sediments of commercial importance, are owing to these investigations (e.g. Brekke et al., 1999; Smelror et al., 2001; Swientek and Ricken, 2002; Lipinski et al., 2003; Langrock et al., in press; Mutterlose et al., 2003). Late Jurassic to Early Cretaceous fine-grained sediments crop up along the eastern margin of the Norwegian-Greenland-Seaway and adjacent marginal seas (Smelror et al., 1994; Leith et al., 1990; Worsley et al., 1988; Århus et al., 1991; Wagner and Hölemann, 1995; Doré, 1991; Doré et al., 1997; Bugge et al., 2002; Mutterlose et al., 2003; Langrock et al., 2003).Drilling also recovered sediments that are exceptionally rich in organic carbon and provide moderate to very good source rock potential for liquid and gaseous petroleum. We investigated sediments from the mid-Norwegian shelf (Fig. 4-1) that represent major potential petroleum source rocks in the region. The cores are characterized by two major lithological units, including the Spekk and Hekkingen formations (Fig. 4-2). A thick sequence of dark-colored, organic carbon-rich claystones (i.e. black shales) with subordinate silty or calcareous intercalation...

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The NE Atlantic margin; implications of late Mesozoic and Cenozoic events for hydrocarbon prospectivity

Cited by 82 publications

References 32 publications

A review of the NE Atlantic conjugate margins based on seismic refraction data

A review of the NE Atlantic conjugate margins based on seismic refraction data

Diagenesis and reservoir quality evolution of palaeocene deep-water, marine sandstones, the Shetland-Faroes Basin, British continental shelf

Origin of marine petroleum source rocks from the Late Jurassic to Early Cretaceous Norwegian Greenland Seaway—evidence for stagnation and upwelling

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