Similarities between strike-slip faults at different scales and simple age determining method for active faults
Similarities between strike-slip faults at different scales and simple age determining method for active faults
Several differently scaled strike-slip faults were examined. The faults shared many geometric features, such as secondary fractures and linkage structures (damage zones). Differences in fault style were not related to specific scale ranges. However, it was recognized that differences in style may occur in different tectonic settings (e.g. dilational/contractional relays or wall/linkage/tip zones), different locations along the master fault or different fault evolution stages. Fractal dimensions were compared for two faults (Gozo and San Andreas), which supports the idea of self-similarity. Fractal dimensions for traces of faults and fractures of damage zones were higher (D ∼1.35) than for the main fault traces (D ∼1.005) because of increased complexity due to secondary faults and fractures. Based on the statistical analysis of another fault evolution study, single event movements in earthquake faults typically have a maximum earthquake slip : rupture length ratio of approximately 10?4, although this has only been established for large earthquake faults because of limited data. Most geological faults have a much higher maximum cumulative displacement : fault length ratio; that is, approximately 10-2 to 10-1 (e.g. Gozo, ∼10-2; San Andreas, ∼10-1). The final cumulative displacement on a fault is produced by accumulation of slip along ruptures. Hence, using the available information from earthquake faults, such as earthquake slip, recurrence interval, maximum cumulative displacement and fault length, the approximate age of active faults can be estimated. The lower limit of estimated active fault age is expressed with maximum cumulative displacement, earthquake slip and recurrence interval as T ≅ (dmax/u) · I(M)
cumulative displacement, dating fault, earthquake slip, fault length, fractal dimension, scale, self-similarity, strike-slip fault
128-143
Kim, Young-Seog
5653bc11-b905-4985-8c16-c655b2170ba9
March 2004
Kim, Young-Seog
5653bc11-b905-4985-8c16-c655b2170ba9
Kim, Young-Seog
(2004)
Similarities between strike-slip faults at different scales and simple age determining method for active faults.
The Island Arc, 13 (1), .
(doi:10.1111/j.1440-1738.2003.00410.x).
Abstract
Several differently scaled strike-slip faults were examined. The faults shared many geometric features, such as secondary fractures and linkage structures (damage zones). Differences in fault style were not related to specific scale ranges. However, it was recognized that differences in style may occur in different tectonic settings (e.g. dilational/contractional relays or wall/linkage/tip zones), different locations along the master fault or different fault evolution stages. Fractal dimensions were compared for two faults (Gozo and San Andreas), which supports the idea of self-similarity. Fractal dimensions for traces of faults and fractures of damage zones were higher (D ∼1.35) than for the main fault traces (D ∼1.005) because of increased complexity due to secondary faults and fractures. Based on the statistical analysis of another fault evolution study, single event movements in earthquake faults typically have a maximum earthquake slip : rupture length ratio of approximately 10?4, although this has only been established for large earthquake faults because of limited data. Most geological faults have a much higher maximum cumulative displacement : fault length ratio; that is, approximately 10-2 to 10-1 (e.g. Gozo, ∼10-2; San Andreas, ∼10-1). The final cumulative displacement on a fault is produced by accumulation of slip along ruptures. Hence, using the available information from earthquake faults, such as earthquake slip, recurrence interval, maximum cumulative displacement and fault length, the approximate age of active faults can be estimated. The lower limit of estimated active fault age is expressed with maximum cumulative displacement, earthquake slip and recurrence interval as T ≅ (dmax/u) · I(M)
This record has no associated files available for download.
More information
e-pub ahead of print date: 16 February 2004
Published date: March 2004
Keywords:
cumulative displacement, dating fault, earthquake slip, fault length, fractal dimension, scale, self-similarity, strike-slip fault
Organisations:
Civil Engineering & the Environment
Identifiers
Local EPrints ID: 52989
URI: http://eprints.soton.ac.uk/id/eprint/52989
ISSN: 1038-4871
PURE UUID: 8a446863-450b-4d44-88c7-0ce50a3f54a3
Catalogue record
Date deposited: 17 Jul 2008
Last modified: 16 Mar 2024 03:57
Export record
Altmetrics
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
