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A broader classification of damage zones

A broader classification of damage zones
A broader classification of damage zones
Damage zones have previously been classified in terms of their positions at fault tips, walls or areas of linkage, with the latter being described in terms of sub-parallel and synchronously active faults. We broaden the idea of linkage to include structures around the intersections of non-parallel and/or non-synchronous faults. These interaction damage zones can be divided into approaching damage zones, where the faults kinematically interact but are not physically connected, and intersection damage zones, where the faults either abut or cross-cut. The damage zone concept is applied to other settings in which strain or displacement variations are taken up by a range of structures, such as at fault bends. It is recommended that a prefix can be added to a wide range of damage zones, to describe the locations in which they formed, e.g., approaching, intersection and fault bend damage zone. Such interpretations are commonly based on limited knowledge of the 3D geometries of the structures, such as from exposure surfaces, and there may be spatial variations. For example, approaching faults and related damage seen in outcrop may be intersecting elsewhere on the fault planes.

Dilation in intersection damage zones can represent narrow and localised channels for fluid flow, and such dilation can be influenced by post-faulting stress patterns.
0191-8141
179-192
Peacock, D.C.P.
54097ee9-4ba1-4691-836e-f72482e76160
Dimmen, V.
db0c5f4b-f0f5-4dd9-b2a3-55e2baf4181d
Sanderson, David
5653bc11-b905-4985-8c16-c655b2170ba9
Rotevatn, A.
17a64f3b-b65c-4d25-9455-fe5c3539e38d
Peacock, D.C.P.
54097ee9-4ba1-4691-836e-f72482e76160
Dimmen, V.
db0c5f4b-f0f5-4dd9-b2a3-55e2baf4181d
Sanderson, David
5653bc11-b905-4985-8c16-c655b2170ba9
Rotevatn, A.
17a64f3b-b65c-4d25-9455-fe5c3539e38d

Peacock, D.C.P., Dimmen, V., Sanderson, David and Rotevatn, A. (2017) A broader classification of damage zones. Journal of Structural Geology, 102, 179-192. (doi:10.1016/j.jsg.2017.08.004).

Record type: Article

Abstract

Damage zones have previously been classified in terms of their positions at fault tips, walls or areas of linkage, with the latter being described in terms of sub-parallel and synchronously active faults. We broaden the idea of linkage to include structures around the intersections of non-parallel and/or non-synchronous faults. These interaction damage zones can be divided into approaching damage zones, where the faults kinematically interact but are not physically connected, and intersection damage zones, where the faults either abut or cross-cut. The damage zone concept is applied to other settings in which strain or displacement variations are taken up by a range of structures, such as at fault bends. It is recommended that a prefix can be added to a wide range of damage zones, to describe the locations in which they formed, e.g., approaching, intersection and fault bend damage zone. Such interpretations are commonly based on limited knowledge of the 3D geometries of the structures, such as from exposure surfaces, and there may be spatial variations. For example, approaching faults and related damage seen in outcrop may be intersecting elsewhere on the fault planes.

Dilation in intersection damage zones can represent narrow and localised channels for fluid flow, and such dilation can be influenced by post-faulting stress patterns.

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More information

Accepted/In Press date: 6 August 2017
e-pub ahead of print date: 9 August 2017
Published date: 2017

Identifiers

Local EPrints ID: 418018
URI: http://eprints.soton.ac.uk/id/eprint/418018
ISSN: 0191-8141
PURE UUID: 2994c025-0981-4c81-9eba-ed7e5ad81c4a
ORCID for David Sanderson: ORCID iD orcid.org/0000-0002-2144-3527

Catalogue record

Date deposited: 20 Feb 2018 17:31
Last modified: 16 Mar 2024 03:57

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Contributors

Author: D.C.P. Peacock
Author: V. Dimmen
Author: David Sanderson ORCID iD
Author: A. Rotevatn

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