Mesoscale strike-slip faults and damage zones at Marsalforn, Gozo Island, Malta
Mesoscale strike-slip faults and damage zones at Marsalforn, Gozo Island, Malta
Well-exposed strike-slip faults in limestones in the north-western part of Gozo show damage zones that can be grouped into three categories based on their location along faults; tip damage, linking damage and distributed damage. The predominant fracture types within damage zones include extension fractures and secondary faults. Tip damage zones usually show wedge-shaped patterns formed by antithetic faults and extension fractures, commonly accompanied by block rotation. Several fractures are combined at linking damage zones, typically with the concentration of a high intensity of fractures. Structures in distributed damage zones are typically similar to the classical Riedel shear pattern. Evolutionary and 3D models are proposed in terms of the geometries of damage zones for small displacement strike-slip fault zones. Different evolutionary routes depend on fault tip modes and locations.
strike-slip faults, damage zones, fracture types
793-812
Kim, Young-Seog
63f4740a-5cc1-4d29-a6ca-40cebad2c7a3
Peacock, D.C.P.
54097ee9-4ba1-4691-836e-f72482e76160
Sanderson, David J.
5653bc11-b905-4985-8c16-c655b2170ba9
May 2003
Kim, Young-Seog
63f4740a-5cc1-4d29-a6ca-40cebad2c7a3
Peacock, D.C.P.
54097ee9-4ba1-4691-836e-f72482e76160
Sanderson, David J.
5653bc11-b905-4985-8c16-c655b2170ba9
Kim, Young-Seog, Peacock, D.C.P. and Sanderson, David J.
(2003)
Mesoscale strike-slip faults and damage zones at Marsalforn, Gozo Island, Malta.
Journal of Structural Geology, 25 (5), .
(doi:10.1016/S0191-8141(02)00200-6).
Abstract
Well-exposed strike-slip faults in limestones in the north-western part of Gozo show damage zones that can be grouped into three categories based on their location along faults; tip damage, linking damage and distributed damage. The predominant fracture types within damage zones include extension fractures and secondary faults. Tip damage zones usually show wedge-shaped patterns formed by antithetic faults and extension fractures, commonly accompanied by block rotation. Several fractures are combined at linking damage zones, typically with the concentration of a high intensity of fractures. Structures in distributed damage zones are typically similar to the classical Riedel shear pattern. Evolutionary and 3D models are proposed in terms of the geometries of damage zones for small displacement strike-slip fault zones. Different evolutionary routes depend on fault tip modes and locations.
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Published date: May 2003
Keywords:
strike-slip faults, damage zones, fracture types
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Local EPrints ID: 52987
URI: http://eprints.soton.ac.uk/id/eprint/52987
ISSN: 0191-8141
PURE UUID: 7dacbe28-f9f8-49d1-b832-988441d38d6c
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Date deposited: 17 Jul 2008
Last modified: 16 Mar 2024 03:57
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Author:
Young-Seog Kim
Author:
D.C.P. Peacock
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