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dc.contributor.author
Perucca, Laura Patricia A.
dc.contributor.author
Rothis, Luis Martin
dc.contributor.author
Bezerra, Francisco Hilario
dc.contributor.author
Vargas, Nicolás
dc.contributor.author
Lima, Jean
dc.date.available
2016-07-22T18:45:29Z
dc.date.issued
2015-10
dc.identifier.citation
Perucca, Laura Patricia A.; Rothis, Luis Martin; Bezerra, Francisco Hilario; Vargas, Nicolás; Lima, Jean; Late Quaternary evolution of the La Cantera Fault System (Central Precordillera, Argentina): A morphotectonic and paleoseismic analysis; Elsevier; Tectonophysics; 661; 10-2015; 200-209
dc.identifier.issn
0040-1951
dc.identifier.uri
http://hdl.handle.net/11336/6640
dc.description.abstract
The La Cantera Fault System (LCFS) is the most active Quaternary structure in the Central Precordillera of SanJuan, in central-western Argentina; the system extends for 47 km along the intermountain valley that separatesthe Sierra de La Cantera and La Invernada, north of the San Juan River. The average fault trend is 20°; it dips atangles varying between 15° and 30° W in the northern section, to approximately 40° W in the central section,and up to 60° W in the southern section. The fault affects Holocene to recent alluvium deposits in the westernpiedmont of the Sierra de La Cantera and is defined by a series of landforms found in compressive tectonicenvironments, including simple and compound counterslope fault scarps, staircased alluvial terraces, sagponds, flexural scarps, aligned springs, broom-shaped drainage patterns, river diversions, beheaded channels,changes in incision depths, sinuosity and a river gradient along channels. Trench investigations indicated thatat least three events occurred in the past 1.1?10.1 ky. The topographic profiles of the selected channels andinterfluves cutting across the northern and central trace of the fault were analyzed using a Stonex Vector GPS differentialsystem to establish the relationship between the topography and slope of the rivers. This morphometricanalysis of scarps indicates that active tectonics have played an essential role in controlling the drainage patternin the piedmont, leading the rivers to adjust to these slope variations. Based on the analyzed geomorphologic,stratigraphic and structural characteristics, the LCFS is considered to be a relevant seismogenic source in the intraplateportion of southern South America, with a recurrence interval of at least 2000 ± 500 years for moderatemagnitude earthquakes during the last 11,000 years.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Neotectonics
dc.subject
Thrust
dc.subject
Paleosismicity
dc.subject
Holocene
dc.subject.classification
Geología
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Late Quaternary evolution of the La Cantera Fault System (Central Precordillera, Argentina): A morphotectonic and paleoseismic analysis
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-07-22T13:45:13Z
dc.journal.volume
661
dc.journal.pagination
200-209
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Perucca, Laura Patricia A.. Universidad Nacional de San Juan. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Geologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Juan. Centro de Investigaciones de la Geosfera y Biosfera; Argentina
dc.description.fil
Fil: Rothis, Luis Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Juan. Centro de Investigaciones de la Geosfera y Biosfera; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Fisicas y Naturales; Argentina
dc.description.fil
Fil: Bezerra, Francisco Hilario. Universidade Federal do Rio Grande do Norte; Brasil
dc.description.fil
Fil: Vargas, Nicolás. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Fisicas y Naturales; Argentina
dc.description.fil
Fil: Lima, Jean. Universidade Federal do Rio Grande do Norte; Brasil
dc.journal.title
Tectonophysics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040195115004692
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tecto.2015.08.041
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.tecto.2015.08.041


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