Denudation and uplift history of the Jameson Land basin, East Greenland—constrained from maturity and apatite fission track data

Mathiesen, Anders; Bidstrup, Torben; Christiansen, Flemming G.

doi:10.1016/s0921-8181(00)00013-8

Cited by 46 publications

(55 citation statements)

References 37 publications

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“…This led to the extrusion of a thick volcanic series, dominantly subaerial lava flows, of which more than 2 km are still exposed in the Geikie Plateau south of Jameson Land today (Larsen et al 1989;Brooks 2011). This volcanic package thins towards the north, and reached a thickness of c. 1 km in the study area, but is now completely eroded there (Mathiesen et al 2000). The sedimentary rocks of the Jameson Land Basin are cross-cut by WNW-ESEtrending dykes (Fig.…”

Section: Volcanic History Of East Greenland and The Jameson Land Basinmentioning

confidence: 92%

“…This section was at an approximate depth of 3 km at the time of magma emplacement of the Jameson Land Suite, constrained by burial history curves based on a variety of data (e.g. Larsen & Marcussen 1992;Mathiesen et al 2000;Hansen et al 2001). The section is at a scale comparable with that for typical offshore seismic data, but includes data from extensive outcrop work including six logs, and at the decimetre scale in the virtual outcrop model (Eide et al 2016).…”

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confidence: 99%

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Basin-scale architecture of deeply emplaced sill complexes: Jameson Land, East Greenland

Eide

Schofield

Jerram

et al. 2016

JGS

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Igneous sills are common components in rifted sedimentary basins globally. Much work has focused on intrusions emplaced at relatively shallow palaeodepths (0 -1.5 km). However, owing to constraints of seismic reflection imaging and limited field exposures, intrusions emplaced at deeper palaeodepths (>1.5 km) within sedimentary basins are not as well understood in regard to their emplacement mechanisms and host-rock interactions. Results from a world-class, seismic-scale outcrop of intruded Jurassic sedimentary rocks in East Greenland are presented here. Igneous intrusions and their host rocks have been studied in the field and utilizing a 22 km long 'virtual outcrop' acquired using helicopter-mounted lidar. The results suggest that the geometries of the deeply emplaced sills (c. 3 km) are dominantly controlled by host-rock lithology, sedimentology and cementation state. Sills favour mudstones and even exploit centimetre-scale mudstone-draped dune-foresets in otherwise homogeneous sandstones. Sills in poorly cemented intervals show clear ductile structures, in contrast to sills in cemented units, which show only brittle emplacement structures. The studied host rock is remarkably undeformed despite intrusion. Volumetric expansion caused by the intrusions is almost exclusively accommodated by vertical jack-up of the overburden, on a 1:1 ratio, implying that intrusions may play a significant role in uplift of a basin if emplaced at deep basinal levels.

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Section: Volcanic History Of East Greenland and The Jameson Land Basinmentioning

confidence: 92%

mentioning

confidence: 99%

Basin-scale architecture of deeply emplaced sill complexes: Jameson Land, East Greenland

Eide

Schofield

Jerram

et al. 2016

JGS

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“…Callot, Geoffroy & Brun, 2002). The locations of hypothetical triple junctions at the CE Greenland margin have been estimated from Early Palaeogene magmatism and uplifts in the area (Larsen & Watt, 1985;Nielsen, 1987;Mathiesen, Bidstrup & Christiansen, 2000;Callot, Geoffroy & Brun, 2002;Peate, Larsen & Lesher, 2003) and from triple junction localities as suggested by Burke & Dewey (1973); Karson & Brooks (1999) and Tegner et al (2008). This vast area was characterized by Early Palaeogene episodic igneous activity and frequent migration of magmatic centres (Larsen & Watt, 1985;Peate, Larsen & Lesher, 2003), and at least three separate rifting events have been recorded for this region, some of which occurred far inland (Nielsen, 1987;Olesen et al 2007).…”

Section: The Spatial Distribution Of Known and Inferred Magmatic Centmentioning

confidence: 99%

The onset of the North Atlantic Igneous Province in a rifting perspective

et al. 2009

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The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Abstract -The processes that led to the onset and evolution of the North Atlantic Igneous Province (NAIP) have been a theme of debate in the past decades. A popular theory has been that the impingement on the lower lithosphere of a hot mantle plume (the 'Ancestral Iceland' plume) initiated the first voluminous outbursts of lava and initiated rifting in the North Atlantic area in Early Palaeogene times. Here we review previous studies in order to set the NAIP magmatism in a time-space context. We suggest that global plate reorganizations and lithospheric extension across old orogenic fronts and/or suture zones, aided by other processes in the mantle (e.g. local or regional scale upwellings prior to and during the final Early Eocene rifting), played a role in the generation of the igneous products recorded in the NAIP for this period. These events gave rise to the extensive Paleocene and Eocene igneous rocks in W Greenland, NW Britain and at the conjugate E Greenland-NW European margins. Many of the relatively large magmatic centres of the NAIP were associated with transient and geographically confined doming in Early Paleocene times prior to the final break-up of the North Atlantic area.

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“…From Scoresby Sund up to the western Jan Mayen fracture zone, the areal extent of this region is approximately 27 500 km 2 . Mathiesen et al (2000) estimate that 2 km of basaltic lava flows covered the Jameson Land Basin and were subsequently eroded away. High velocity lower crust observed by Weigel et al (1995) could be the intrusive counterpart to the eroded basalts.…”

Section: Spatial Distribution Of Volcanismmentioning

confidence: 99%

Regional distribution of volcanism within the North Atlantic Igneous Province

Horni

Hopper

Blischke

et al. 2017

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An overview of the distribution of volcanic facies units was compiled over the North Atlantic region. The new maps establish the pattern of volcanism associated with breakup and the initiation of seafloor spreading over the main part of the North Atlantic Igneous Province (NAIP). The maps include new analysis of the Faroe-Shetlands region that allows for a consistent volcanic facies map to be constructed over the entire eastern margin of the North Atlantic for the first time. A key result is that the various conjugate margin segments show a number of asymmetric patterns that are interpreted to result in part from pre-existing crustal and lithospheric structures. The compilation further shows that while the lateral extent of volcanism extends equally far to the south of the Iceland hot spot as it does to the north, the volume of material emplaced to the south is nearly double of that to the north. This suggests that a possible southward deflection of the Iceland mantle plume is a long-lived phenomenon originating during or shortly after impact of the plume.

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Denudation and uplift history of the Jameson Land basin, East Greenland—constrained from maturity and apatite fission track data

Cited by 46 publications

References 37 publications

Basin-scale architecture of deeply emplaced sill complexes: Jameson Land, East Greenland

Basin-scale architecture of deeply emplaced sill complexes: Jameson Land, East Greenland

The onset of the North Atlantic Igneous Province in a rifting perspective

Regional distribution of volcanism within the North Atlantic Igneous Province

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