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dc.contributor.author
Hoke, Gregory D.
dc.contributor.author
Graber, Nathan R.
dc.contributor.author
Mescua, Jose Francisco
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Giambiagi, Laura Beatriz
dc.contributor.author
Fitzgerald, Paul G.
dc.contributor.author
Metcalf, James R.
dc.date.available
2023-01-03T18:03:59Z
dc.date.issued
2015-02
dc.identifier.citation
Hoke, Gregory D.; Graber, Nathan R.; Mescua, Jose Francisco; Giambiagi, Laura Beatriz; Fitzgerald, Paul G.; et al.; Near pure surface uplift of the Argentine Frontal Cordillera: Insights from (U-Th)/He thermochronometry and geomorphic analysis; Geological Society Publications House; Geological Society of London Special Publication; 399; 2-2015; 383-399
dc.identifier.issn
0305-8719
dc.identifier.uri
http://hdl.handle.net/11336/183212
dc.description.abstract
Apatite (U-Th)/He thermochronology from palaeosurface-bounded vertical transects collected in deeply incised river valleys with >2 km of relief, as well as geomorphic analysis, are used to examine the timing of uplift of the Frontal Cordillera and its relation to the evolution of the proximal portions of the Andean foreland between 32° and 34°S latitude. The results of apatite (U- Th)/He (AHe) analyses are complex. However, the data show positive age-elevation trends, with higher elevation samples yielding older AHe ages than samples at lower elevation. Slope breaks occur at c. 25 Ma in both profiles, separating very slow cooling and or residence within a partial retention zone (slope of c. 10 m/Myr) at the highest elevations from a slope of c. 60-100 m/ Myr cooling rate at lower elevations. The older AHe ages suggest either (1) minimal burial of the Frontal Cordillera and/or (2) significant pre-middle Miocene local relief. Geomorphic analysis of the adjacent, east-draining Río Mendoza and Río Tunuyán catchments reveals a glacial imprint to the landscape at elevations above 3000 m, including greater channel steepness and lower profile concavities developed during glacial erosion. Detailed analysis of headwall heights provides evidence of ongoing rock uplift along the entire eastern flank of the Frontal Cordillera and in the eastern flank of the Principal Cordillera south of the slab dip transition.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Geological Society Publications House
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
LOW TEMPERATURE GEOCHRNOLOGY
dc.subject
TOPOGRAPHIC UPLIFT
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FRONTAL CORDILLERA
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PALEOSURFACES
dc.subject.classification
Geología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Near pure surface uplift of the Argentine Frontal Cordillera: Insights from (U-Th)/He thermochronometry and geomorphic 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
2022-12-27T18:13:19Z
dc.journal.volume
399
dc.journal.pagination
383-399
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Hoke, Gregory D.. Syracuse University; Estados Unidos
dc.description.fil
Fil: Graber, Nathan R.. Syracuse University; Estados Unidos
dc.description.fil
Fil: Mescua, Jose Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Giambiagi, Laura Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Fitzgerald, Paul G.. Syracuse University; Estados Unidos
dc.description.fil
Fil: Metcalf, James R.. Syracuse University; Estados Unidos. State University of Colorado at Boulder; Estados Unidos
dc.journal.title
Geological Society of London Special Publication
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.lyellcollection.org/doi/10.1144/SP399.4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1144/SP399.4
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