Geological development of the Northeast Greenland Shelf

Hamann, Niels Erik; Whittaker, R. C.; Stemmerik, Lars

doi:10.1144/0060887

Cited by 81 publications

(143 citation statements)

References 32 publications

(3 reference statements)

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“…2). On the NE Greenland margin, the succession is interpreted to be present offshore on the Store Koldewey Platform and in the Danmarkshavn Basin based on seismic data (Hamann et al 2005), and possible Permian -Triassic strata in the Thetis Basin are speculatively suggested by Dinkelman et al (2010) and Jackson et al (2012) (Figs 2 & 12a). Rocks of Late Triassic age have been sampled on the East Greenland Ridge (Nielsen et al 2014) (Fig.…”

Section: Permian -Triassic Stratigraphy Of the Ne Atlantic Marginsmentioning

confidence: 87%

An overview of the Upper Palaeozoic–Mesozoic stratigraphy of the NE Atlantic region

Stoker

Stewart

Shannon

et al. 2016

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This study describes the distribution and stratigraphic range of the Upper PalaeozoicMesozoic succession in the NE Atlantic region, and is correlated between conjugate margins and along the axis of the NE Atlantic rift system. The stratigraphic framework has yielded important new constraints on the timing and nature of sedimentary basin development in the NE Atlantic, with implications for rifting and the break-up of the Pangaean supercontinent. From a regional perspective, the Permian-Triassic succession records a northwards transition from an arid interior to a passively subsiding, mixed carbonate -siliciclastic shelf margin. A Late Permian-earliest Triassic rift pulse has regional expression in the stratigraphic record. A fragmentary paralic to shallowmarine Lower Jurassic succession reflects Early Jurassic thermal subsidence and mild extensional tectonism; this was interrupted by widespread Mid-Jurassic uplift and erosion, and followed by an intense phase of Late Jurassic rifting in some (but not all) parts of the NE Atlantic region. The Cretaceous succession is dominated by thick basinal-marine deposits, which accumulated within and along a broad zone of extension and subsidence between Rockall and NE Greenland. There is no evidence for a substantive and continuous rift system along the proto-NE Atlantic until the Late Cretaceous.Gold Open Access: This article is published under the terms of the CC-BY 3.0 license.

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Section: Permian -Triassic Stratigraphy Of the Ne Atlantic Marginsmentioning

confidence: 87%

An overview of the Upper Palaeozoic–Mesozoic stratigraphy of the NE Atlantic region

Stoker

Stewart

Shannon

et al. 2016

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“…Doré & Lundin 1996;Japsen & Chalmers 2000;Lundin & Doré 2002;Ritchie et al 2003;Gomez & Verges 2005;Doré et al 2008;Stoker et al 2010;Tuitt et al 2010;Japsen et al 2012;Yamato et al 2013;Døss-ing et al 2016). Cenozoic compressional domes have been described on the Vøring, Faroe -Shetland and Hatton margins, in the Rockall Basin (for a short summary see Kimbell et al 2016), and in the NE Greenland margin (Price & Whitham 1997;Hamann et al 2005). Few distinct phases of compressional dome formation along the west European margin are identified for post-break-up times in the NE Atlantic: Early and Mid-Eocene, Mid-EoceneOligocene and Mid-Miocene (e.g.…”

Section: Subduction In the Pacific And Mediterranean Realms And The mentioning

confidence: 99%

Break-up and seafloor spreading domains in the NE Atlantic

Gaina

Nasuti

Kimbell

et al. 2017

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An updated magnetic anomaly grid of the NE Atlantic and an improved database of magnetic anomaly and fracture zone identifications allow the kinematic history of this region to be revisited. At break-up time, continental rupture occurred parallel to the Mesozoic rift axes in the south, but obliquely to the previous rifting trend in the north, probably due to the proximity of the Iceland plume at 57-54 Ma.The new oceanic lithosphere age grid is based on 30 isochrons (C) from C24n old (53.93 Ma) to C1n old (0.78 Ma), and documents ridge reorganizations in the SE Lofoten Basin, the Jan Mayen Fracture Zone region, in Iceland and offshore Faroe Islands. Updated continent -ocean boundaries, including the Jan Mayen microcontinent, and detailed kinematics of the EocenePresent Greenland-Eurasia relative motions are included in this model.Variations in the subduction regime in the NE Pacific could have caused the sudden northwards motion of Greenland and subsequent Eurekan deformation. These events caused seafloor spreading changes in the neighbouring Labrador Sea and a decrease in spreading rates in the NE Atlantic. Boundaries between major oceanic crustal domains were formed when the European Plate changed its absolute motion direction, probably caused by successive adjustments along its southern boundary.

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“…Between the Jan Mayen Fracture Zone and the Greenland/Senja fracture zones, the East Greenland shelf widens northwards (Hamann et al 2005), while the shelf off Norway with the Vøring and Lofoten margins narrows (Fig. 1).…”

Section: Geological Settingmentioning

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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Geological development of the Northeast Greenland Shelf

Cited by 81 publications

References 32 publications

An overview of the Upper Palaeozoic–Mesozoic stratigraphy of the NE Atlantic region

An overview of the Upper Palaeozoic–Mesozoic stratigraphy of the NE Atlantic region

Break-up and seafloor spreading domains in the NE Atlantic

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

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