Deformation studies in the Irish Caledonides
Deformation studies in the Irish Caledonides
An interpretation of the major structure of parts of the Irish Caledonides is made, based on the results of mapping of the main early penetrative fabrics. Interpretation of major changes in fabric are attributed to strain variation, and models are developed to explain these changes. The regional nappe structures in the Dalradian rocks have been modified by (1) D2 slide zones, and (2) a D4 sinistral shear zone adjacent to the Main Donegal Granite in NW Donegal. In N Mayo the major structure is interpreted in terms of a steep dextral E-W shear zone modifying the early formed nappe pile. The strain history adjacent to the Iapetus suture in central Ireland is described and a wide zone of non-axial planar cleavage discussed. In SE Ireland the regional strain pattern is modified in the tectonic aureole of the Leinster Granite.
289-302
Sanderson, D.J.
5653bc11-b905-4985-8c16-c655b2170ba9
Andrews, J.R.
2623f1f0-774a-4c9e-9ece-099b955dad84
Phillips, W.E.A.
76b1fb41-1c9a-4214-bcce-4cbd4ec93ee6
Hutton, D.H.W.
73264bff-8ffc-442e-a568-3f2ca6c6e4bb
1980
Sanderson, D.J.
5653bc11-b905-4985-8c16-c655b2170ba9
Andrews, J.R.
2623f1f0-774a-4c9e-9ece-099b955dad84
Phillips, W.E.A.
76b1fb41-1c9a-4214-bcce-4cbd4ec93ee6
Hutton, D.H.W.
73264bff-8ffc-442e-a568-3f2ca6c6e4bb
Sanderson, D.J., Andrews, J.R., Phillips, W.E.A. and Hutton, D.H.W.
(1980)
Deformation studies in the Irish Caledonides.
Journal of the Geological Society, 137 (3), .
(doi:10.1144/gsjgs.137.3.0289).
Abstract
An interpretation of the major structure of parts of the Irish Caledonides is made, based on the results of mapping of the main early penetrative fabrics. Interpretation of major changes in fabric are attributed to strain variation, and models are developed to explain these changes. The regional nappe structures in the Dalradian rocks have been modified by (1) D2 slide zones, and (2) a D4 sinistral shear zone adjacent to the Main Donegal Granite in NW Donegal. In N Mayo the major structure is interpreted in terms of a steep dextral E-W shear zone modifying the early formed nappe pile. The strain history adjacent to the Iapetus suture in central Ireland is described and a wide zone of non-axial planar cleavage discussed. In SE Ireland the regional strain pattern is modified in the tectonic aureole of the Leinster Granite.
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Published date: 1980
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Local EPrints ID: 76165
URI: http://eprints.soton.ac.uk/id/eprint/76165
ISSN: 0016-7649
PURE UUID: be287f77-5f36-43b5-a885-b6965d12fac6
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:53
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Author:
J.R. Andrews
Author:
W.E.A. Phillips
Author:
D.H.W. Hutton
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