Fault Type
This scheme specifies terms used to summarise the overall character of faults (ie, a summary of movement type and orientation) as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group. Although the terms in this vocabulary are in common usage with definitions in standard texts or glossaries like Neuendorf et al. (2005), the definitions here attempt to establish unambiguous criteria to distinguish the categories, and are thus listed with this vocabulary as the source. By extension, this vocabulary includes all concepts in this conceptScheme, as well as concepts in any previous versions of the scheme. Designed for use in the faultType property in GeoSciML ShearDisplacementStructure elements.
This file contains the 2016 SKOS-RDF version of the CGI Fault Type vocabulary. Compilation and review in MS Excel spreadsheet, converted to MS Excel for SKOS generation using SKOS_for_GA_from_XLS_2016.03.xslt
2010-02-11 Add narrower relationship links by adding skos:narrower link in Protege, defining skos:narrower as inverse of skos:broader, calculating with Pellet reasoner to add inferred axioms, and using 'file/Export inferred axioms as ontology' in Protege.
2010-11-27 SMR update URN to http URI, create version 201202
2012-02-07 SMR update URI to replace numeric final token with English-language string as in original URN scheme.
2012-10-22 SJDC adjust ConceptScheme and Collection individuals, and Concept membership, to match Best Practice emerging from ISO Ontology work. Add some version metadata.
2012-11-24 SMR Update to 201211 version; add collection entity, check all pref labels are lower case, remove owl:NamedIndividual and Owl:Thing rdf:types.
2016-10-19 OLR regenerate SKOS-RDF file as part of migration to new vocabulary server. No changes to terms from the previous 2012 version.
2016-10-19
CGI Geoscience Terminology Working Group
A regional-scale, large displacement, low-angle normal fault.
detachment fault
this vocabulary
Fault with right-lateral strike-parallel displacement component of slip vector more than 10 times the dip-parallel component of the slip vector at at least one location along the fault, and right-lateral displacement over more than half the mapped trace of the fault.
dextral strike slip fault
this vocabulary
A fault whose two sides have approached each other substantially in the direction perpendicular to the fault.
extraction fault
Froitzheim, N., Pleuger, J. & Nagel, T.J., 2006. Extraction faults. Journal of Structural Geology v28, pp. 1388-1395.
A discrete surface, or zone of discrete surfaces, with some thickness, separating two rock masses across which one mass has slid past the other and characterized by brittle deformation.
fault
this vocabulary
Fault that dips at least 45 degrees over more than half of its recognized extent, for which slip or separation is not explicitly specified.
high angle fault
this vocabulary
Fault that dips at least 45 degrees over more than half of the recognized extent of the fault with the hanging wall displaced from a structurally higher position relative to footwall rocks.
high angle normal fault
this vocabulary
Reverse fault that dips at least 45 degrees over more than half of its recognized extent, for which slip or separation is not explicitly specified.
high angle reverse
this vocabulary
Fault that dips less than 10 degrees over more than half the recognized extent of the fault.
horizontal fault
GGIC vocabularies working group (Australia)
High angle fault with slip vector that has ratio of strike-parallel to dip-parallel displacement between 10 to 1 and 1 to 10 at at least one location along the mapped trace, with left-lateral strike-parallel component and normal dip-parallel component over at least half the mapped trace of the fault.
left normal fault
this vocabulary
High angle fault with slip vector that has ratio of strike-parallel to dip-parallel displacement between 10 to 1 and 1 to 10 at at least one location along the mapped trace, with left-lateral strike-parallel component and reverse dip-parallel component over at least half the mapped trace of the fault.
left reverse fault
this vocabulary
Fault that dips less than 45 degrees over more than half of the recognized extent of the fault.
low angle fault
this vocabulary
Fault that dips less than 45 degrees over more than half of the recognized extent of the fault with the hanging wall displaced from a structurally higher position relative to footwall rocks.
low angle normal fault
this vocabulary
An extraction fault with some displacement within the fault plane.
mixed extraction fault
Froitzheim, N., Pleuger, J. & Nagel, T.J., 2006. Extraction faults. Journal of Structural Geology v28, pp. 1388-1395.
Fault with dip-parallel displacement component of slip vector more than 10 times the strike-parallel component of the slip vector over more than half recognized extent of the fault, and for which the fault dips consistently in the same direction, and for which the hanging wall has been displaced down relative to the footwall.
normal fault
this vocabulary
Fault with slip vector that has ratio of strike-parallel to dip-parallel displacement between 10 to 1 and 1 to 10 at at least one location along the mapped trace of the fault.
oblique slip fault
this vocabulary
An extraction fault with no discernible displacement within the fault plane.
pure extraction fault
Froitzheim, N., Pleuger, J. & Nagel, T.J., 2006. Extraction faults. Journal of Structural Geology v28, pp. 1388-1395.
Fault with dip-parallel displacement component of slip vector more than 10 times the strike-parallel component of the slip vector at at least one location along the mapped trace of the fault, and the fault dips consistently in the same direction with the hanging wall displaced up relative to the footwall over at least half the mapped trace of the fault.
reverse fault
this vocabulary
High angle fault with slip vector that has ratio of strike-parallel to dip-parallel displacement between 10 to 1 and 1 to 10 at at least one location along the mapped trace, with right-lateral strike-parallel component and normal dip-parallel component of slip over at least half the mapped trace of the fault
right normal fault
this vocabulary
High angle fault with slip vector that has ratio of strike-parallel to dip-parallel displacement between 10 to 1 and 1 to 10 at at least one location along the mapped trace, with a right-lateral strike-parallel component and reverse dip-parallel component of slip over at least half the mapped trace of the fault.
right reverse fault
this vocabulary
A fault on which there is increasing offset or separation along the strike from an initial point of no offset, with the opposite sense of offset in the opposite direction.
scissor fault
Neuendorf et al 2005
Fault with left-lateral strike-parallel displacement component of slip vector more than 10 times the dip-parallel component of the slip vector at at least one location along the fault, and left-lateral displacement over more than half the mapped trace of the fault.
sinistral strike slip fault
this vocabulary
Fault with strike-parallel displacement component of slip vector more than 10 times the dip-parallel component of the slip vector at at least one location along the mapped trace of the fault.
strike slip fault
this vocabulary
Fault that dips less than 45 degrees over more than half of the recognized extent of the fault, with a hanging wall displaced from a structurally deeper position relative to footwall rocks.
thrust fault
this vocabulary
A strike slip fault in which the fault plane dips at least 45 degrees over more than half of the recognized extent of the fault.
wrench fault
GGIC vocabularies working group (Australia)
Fault Type - All Concepts