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S.B. Nielsen

Dynamics of Mid-Palaeocene North Atlantic rifting linked with European intra-plate deformations

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Dynamics of Mid-Palaeocene North Atlantic rifting linked with European intra-plate deformations. / Nielsen, Søren B.; Stephenson, Randell; Thomsen, Erik.

In: Nature, Vol. 450, No. 7172, 13.12.2007, p. 1071-1074.

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@article{c79c5e499e5645dea55264a2bbbf1493,
title = "Dynamics of Mid-Palaeocene North Atlantic rifting linked with European intra-plate deformations",
abstract = "The process of continental break-up provides a large-scale experiment that can be used to test causal relations between plate tectonics and the dynamics of the Earth's deep mantle. Detailed diagnostic information on the timing and dynamics of such events, which are not resolved by plate kinematic reconstructions, can be obtained from the response of the interior of adjacent continental plates to stress changes generated by plate boundary processes. Here we demonstrate a causal relationship between North Atlantic continental rifting at '62 Myr ago and an abrupt change of the intra-plate deformation style in the adjacent European continent. The rifting involved a left-lateral displacement between the North American-Greenland plate and Eurasia, which initiated the observed pause in the relative convergence of Europe and Africa. The associated stress change in the European continent was significant and explains the sudden termination of a '20-Myr-long contractional intra-plate deformation within Europe, during the late Cretaceous period to the earliest Palaeocene epoch, which was replaced by low-amplitude intra-plate stress-relaxation features. The pre-rupture tectonic stress was large enough to have been responsible for precipitating continental break-up, so there is no need to invoke a thermal mantle plume as a driving mechanism. The model explains the simultaneous timing of several diverse geological events, and shows how the intra-continental stratigraphic record can reveal the timing and dynamics of stress changes, which cannot be resolved by reconstructions based only on plate kinematics.",
author = "Nielsen, {S{\o}ren B.} and Randell Stephenson and Erik Thomsen",
year = "2007",
month = "12",
day = "13",
doi = "10.1038/nature06379",
language = "English",
volume = "450",
pages = "1071--1074",
journal = "Nature",
issn = "0028-0836",
publisher = "Nature Publishing Group",
number = "7172",

}

RIS

TY - JOUR

T1 - Dynamics of Mid-Palaeocene North Atlantic rifting linked with European intra-plate deformations

AU - Nielsen, Søren B.

AU - Stephenson, Randell

AU - Thomsen, Erik

PY - 2007/12/13

Y1 - 2007/12/13

N2 - The process of continental break-up provides a large-scale experiment that can be used to test causal relations between plate tectonics and the dynamics of the Earth's deep mantle. Detailed diagnostic information on the timing and dynamics of such events, which are not resolved by plate kinematic reconstructions, can be obtained from the response of the interior of adjacent continental plates to stress changes generated by plate boundary processes. Here we demonstrate a causal relationship between North Atlantic continental rifting at '62 Myr ago and an abrupt change of the intra-plate deformation style in the adjacent European continent. The rifting involved a left-lateral displacement between the North American-Greenland plate and Eurasia, which initiated the observed pause in the relative convergence of Europe and Africa. The associated stress change in the European continent was significant and explains the sudden termination of a '20-Myr-long contractional intra-plate deformation within Europe, during the late Cretaceous period to the earliest Palaeocene epoch, which was replaced by low-amplitude intra-plate stress-relaxation features. The pre-rupture tectonic stress was large enough to have been responsible for precipitating continental break-up, so there is no need to invoke a thermal mantle plume as a driving mechanism. The model explains the simultaneous timing of several diverse geological events, and shows how the intra-continental stratigraphic record can reveal the timing and dynamics of stress changes, which cannot be resolved by reconstructions based only on plate kinematics.

AB - The process of continental break-up provides a large-scale experiment that can be used to test causal relations between plate tectonics and the dynamics of the Earth's deep mantle. Detailed diagnostic information on the timing and dynamics of such events, which are not resolved by plate kinematic reconstructions, can be obtained from the response of the interior of adjacent continental plates to stress changes generated by plate boundary processes. Here we demonstrate a causal relationship between North Atlantic continental rifting at '62 Myr ago and an abrupt change of the intra-plate deformation style in the adjacent European continent. The rifting involved a left-lateral displacement between the North American-Greenland plate and Eurasia, which initiated the observed pause in the relative convergence of Europe and Africa. The associated stress change in the European continent was significant and explains the sudden termination of a '20-Myr-long contractional intra-plate deformation within Europe, during the late Cretaceous period to the earliest Palaeocene epoch, which was replaced by low-amplitude intra-plate stress-relaxation features. The pre-rupture tectonic stress was large enough to have been responsible for precipitating continental break-up, so there is no need to invoke a thermal mantle plume as a driving mechanism. The model explains the simultaneous timing of several diverse geological events, and shows how the intra-continental stratigraphic record can reveal the timing and dynamics of stress changes, which cannot be resolved by reconstructions based only on plate kinematics.

UR - http://www.scopus.com/inward/record.url?scp=37249089089&partnerID=8YFLogxK

U2 - 10.1038/nature06379

DO - 10.1038/nature06379

M3 - Journal article

C2 - 18075591

AN - SCOPUS:37249089089

VL - 450

SP - 1071

EP - 1074

JO - Nature

JF - Nature

SN - 0028-0836

IS - 7172

ER -