Mostrar el registro sencillo del ítem
dc.contributor.author
Davila, Federico Miguel
dc.contributor.author
Avila, Pilar
dc.contributor.author
Martina, Federico
dc.date.available
2021-02-04T20:19:52Z
dc.date.issued
2019-08
dc.identifier.citation
Davila, Federico Miguel; Avila, Pilar; Martina, Federico; Relative contributions of tectonics and dynamic topography to the Mesozoic-Cenozoic subsidence of southern Patagonia; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 93; 8-2019; 412-423
dc.identifier.issn
0895-9811
dc.identifier.uri
http://hdl.handle.net/11336/124875
dc.description.abstract
Sedimentary basins result from a complex interaction between mantle, crustal and surficial erosional-driven processes, which act at different time and spatial scales. While shortening and crustal loading drive flexural subsidence toward the foreland, stretching produces normal faulting and graben depocenters. In this contribution we analyze the Mesozoic-Cenozoic subsidence history of southern Patagonia, using backstripping from sixty eight oil well data and outcrops, distributed in the Santa Cruz and Chubut provinces, Argentina, in the Golfo San Jorge and Austral basins. These data are compared with three flexural analyses from six regional balanced cross sections along the southern Patagonian Cordillera, a stretching-thermal model (McKenzie)assuming lateral extension changes, five dynamic topography models localized in the core of the basins and a paleotopographic analysis derived from a paleolithospheric thickness approach (basalt geochemistry). The comparison between stratigraphic observations (backstripping in this case)and subsidence models provide us a residual subsidence value in southern Patagonia. These values are compared with dynamic topography and paleotopographic computations. No additional subcrustal forces are needed to explain the sedimentary accommodation during the Jurassic-early Cretaceous (extensional basin stage). However, from the late Cretaceous to the early Neogene, the foreland stages do require additional processes to account for the subsidence or uplift events. We reassert, like in our previous contributions, that subcrustal forces (lithospheric mantle thickness changes and asthenospheric flows)worked together with flexural accommodation to create a sedimentary basin, occasionally provoking drastic paleoenvironmental and landscape changes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BASIN SUBSIDENCE ANALYSIS
dc.subject
DYNAMIC TOPOGRAPHY
dc.subject
PATAGONIA
dc.subject
RESIDUAL TOPOGRAPHY
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
Relative contributions of tectonics and dynamic topography to the Mesozoic-Cenozoic subsidence of southern Patagonia
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-25T16:11:49Z
dc.journal.volume
93
dc.journal.pagination
412-423
dc.journal.pais
Países Bajos
dc.journal.ciudad
Ámsterdam
dc.description.fil
Fil: Davila, Federico Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
dc.description.fil
Fil: Avila, Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
dc.description.fil
Fil: Martina, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
dc.journal.title
Journal of South American Earth Sciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jsames.2019.05.010
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0895981118305017
Archivos asociados