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dc.contributor.author
Hain, M. P.  
dc.contributor.author
Strecker, M. R.  
dc.contributor.author
Bookhagen, B.  
dc.contributor.author
Alonso, Ricardo Narciso  
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Pingel, H.  
dc.contributor.author
Schmitt, A. K.  
dc.date.available
2017-02-17T20:27:55Z  
dc.date.issued
2011-04  
dc.identifier.citation
Hain, M. P.; Strecker, M. R.; Bookhagen, B.; Alonso, Ricardo Narciso; Pingel, H.; et al.; Neogene to Quaternary broken foreland formation and sedimentation dynamics in the Andes of NW Argentina (25°S); American Geophysical Union; Tectonics; 30; 2; 4-2011; 1-27  
dc.identifier.uri
http://hdl.handle.net/11336/13171  
dc.description.abstract
The northwest Argentine Andes constitute a premier natural laboratory to assess the complex interactions between isolated uplifts, orographic precipitation gradients, and related erosion and sedimentation patterns. Here we present new stratigraphic observations and age information from intermontane basin sediments to elucidate the Neogene to Quaternary shortening history and associated sediment dynamics of the broken Salta foreland. This part of the Andean orogen, which comprises an array of basement-cored range uplifts, is located at ∼25°S and lies to the east of the arid intraorogenic Altiplano/Puna plateau. In the Salta foreland, spatially and temporally disparate range uplift along steeply dipping inherited faults has resulted in foreland compartmentalization with steep basin-to-basin precipitation gradients. Sediment architecture and facies associations record a three-phase (∼10, ∼5, and <2 Ma), east directed, yet unsystematic evolution of shortening, foreland fragmentation, and ensuing changes in precipitation and sediment transport. The provenance signatures of these deposits reflect the trapping of sediments in the intermontane basins of the Andean hinterland, as well as the evolution of a severed fluvial network. Present-day moisture supply to the hinterland is determined by range relief and basin elevation. The conspiring effects of range uplift and low rainfall help the entrapment and long-term storage of sediments, ultimately raising basin elevation in the hinterland, which may amplify aridification in the orogen interior.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Geophysical Union  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Neogene  
dc.subject
Foreland Formation  
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Sedimentatio Dynamics  
dc.subject
Andes  
dc.subject.classification
Geología  
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Ciencias de la Tierra y relacionadas con el Medio Ambiente  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Neogene to Quaternary broken foreland formation and sedimentation dynamics in the Andes of NW Argentina (25°S)  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-02-15T14:54:37Z  
dc.identifier.eissn
1944-9194  
dc.journal.volume
30  
dc.journal.number
2  
dc.journal.pagination
1-27  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Washington DC  
dc.description.fil
Fil: Hain, M. P.. Universitat Potsdam; Alemania. University of Princeton; Estados Unidos  
dc.description.fil
Fil: Strecker, M. R.. Universitat Potsdam; Alemania  
dc.description.fil
Fil: Bookhagen, B.. University of California; Estados Unidos  
dc.description.fil
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta; Argentina  
dc.description.fil
Fil: Pingel, H.. Universitat Potsdam; Alemania  
dc.description.fil
Fil: Schmitt, A. K.. University of California; Estados Unidos  
dc.journal.title
Tectonics  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1029/2010TC002703  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1029/2010TC002703/abstract