The British Siluro-Devonian palaeofield, the Great Glen Fault and analytical methods in palaeomagnetism: comments on a paper by K.M.Storetvedt et al.

Trond Torsvik, Allan Trench, Mark Smethurst

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8 Citations (Scopus)

Abstract

Late Silurian-early Devonian palaeomagnetic poles throughout the British Isles lie in a coherent group about 1°S and 314°E (A95 = 9.6°). The clustering of these poles, which are derived from 11 individual studies of Siluro-Devonian rocks of all the major tectonic elements of Britain, carries two important tectonic implications:

(1) the British sector of the Iapetus Ocean, recognizable from Ordovician poles, had closed by late Silurian times; and

(2) any postulated mega-shear, whether related to Acadian or Hercynian deformation, is below the limit of palaeomagnetic resolution.

The collective rejection of all Siluro-Devonian results by Storetvedt et al. (1990a, b) is demonstrated to be unfounded.
Original languageEnglish
Pages (from-to)467-473
Number of pages7
JournalGeophysical Journal International
Volume105
Issue number2
DOIs
Publication statusPublished - 1991
Externally publishedYes

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Great Glen Fault
paleomagnetism
Poles
analytical method
poles
Tectonics
Silurian
tectonics
Iapetus
Iapetus Ocean
Acadian
rejection
Ordovician
oceans
sectors
Rocks
rocks
shear
rock

Cite this

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abstract = "Late Silurian-early Devonian palaeomagnetic poles throughout the British Isles lie in a coherent group about 1°S and 314°E (A95 = 9.6°). The clustering of these poles, which are derived from 11 individual studies of Siluro-Devonian rocks of all the major tectonic elements of Britain, carries two important tectonic implications:(1) the British sector of the Iapetus Ocean, recognizable from Ordovician poles, had closed by late Silurian times; and(2) any postulated mega-shear, whether related to Acadian or Hercynian deformation, is below the limit of palaeomagnetic resolution.The collective rejection of all Siluro-Devonian results by Storetvedt et al. (1990a, b) is demonstrated to be unfounded.",
author = "Trond Torsvik and Allan Trench and Mark Smethurst",
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T1 - The British Siluro-Devonian palaeofield, the Great Glen Fault and analytical methods in palaeomagnetism: comments on a paper by K.M.Storetvedt et al.

AU - Torsvik, Trond

AU - Trench, Allan

AU - Smethurst, Mark

PY - 1991

Y1 - 1991

N2 - Late Silurian-early Devonian palaeomagnetic poles throughout the British Isles lie in a coherent group about 1°S and 314°E (A95 = 9.6°). The clustering of these poles, which are derived from 11 individual studies of Siluro-Devonian rocks of all the major tectonic elements of Britain, carries two important tectonic implications:(1) the British sector of the Iapetus Ocean, recognizable from Ordovician poles, had closed by late Silurian times; and(2) any postulated mega-shear, whether related to Acadian or Hercynian deformation, is below the limit of palaeomagnetic resolution.The collective rejection of all Siluro-Devonian results by Storetvedt et al. (1990a, b) is demonstrated to be unfounded.

AB - Late Silurian-early Devonian palaeomagnetic poles throughout the British Isles lie in a coherent group about 1°S and 314°E (A95 = 9.6°). The clustering of these poles, which are derived from 11 individual studies of Siluro-Devonian rocks of all the major tectonic elements of Britain, carries two important tectonic implications:(1) the British sector of the Iapetus Ocean, recognizable from Ordovician poles, had closed by late Silurian times; and(2) any postulated mega-shear, whether related to Acadian or Hercynian deformation, is below the limit of palaeomagnetic resolution.The collective rejection of all Siluro-Devonian results by Storetvedt et al. (1990a, b) is demonstrated to be unfounded.

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DO - 10.1111/j.1365-246X.1991.tb06725.x

M3 - Article

VL - 105

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EP - 473

JO - Geophysical Journal International

JF - Geophysical Journal International

SN - 0956-540X

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