Mostrar el registro sencillo del ítem
dc.contributor.author
Paredes, José M.
dc.contributor.author
Foix, Nicolas
dc.contributor.author
Guerstein, Gladys Raquel
dc.contributor.author
Guler, Maria Veronica
dc.contributor.author
Irigoyen, Martin
dc.contributor.author
Moscoso, Pablo
dc.contributor.author
Giordano, Sergio
dc.date.available
2016-07-13T20:50:48Z
dc.date.issued
2015-08-18
dc.identifier.citation
Paredes, José M.; Foix, Nicolas; Guerstein, Gladys Raquel; Guler, Maria Veronica; Irigoyen, Martin; et al.; A late Eocene-early Oligocene transgressive event in the Golfo San Jorge basin: palynological results and stratigraphic implications; Elsevier; Journal of South American Earth Sciences; 63; 18-8-2015; 293-309
dc.identifier.issn
0895-9811
dc.identifier.uri
http://hdl.handle.net/11336/6491
dc.description.abstract
A new Cenozoic dataset in the subsurface of the South Flank of the Golfo San Jorge Basin (Santa Cruz province) allowed to identify a non-previously recognized transgressive event of late Eocene to early Oligocene age. Below of a marine succession containing a dinoflagellate cyst assemblage that characterizes the C/G palynological zone of the Chenque Formation (early Miocene), a 80–110 m thick marine succession contains a palynological assemblage integrated by Gelatia inflata, Diphyes colligerum and Reticulatosphaera actinocoronata supporting the occurrence of a marine incursion in the basin during the Eocene–Oligocene transition (EOT). The new lithostratigraphic unit - here defined as El Huemul Formation – covers in sharp contact to the Sarmiento Formation, and become thinner from East to West; the unit has been identified in about 1800 well logs covering up to 3500 km2, and its subsurface distribution exceed the boundaries of the study area. The El Huemul Formation consists of a thin lag of glauconitic sandstones with fining-upward log motif, followed by a mudstone-dominated succession that coarsening-upward to sandstones, evidencing a full T-R cycle. Preservation of the El Huemul Formation in the subsurface of the South Flank has been favored by the reactivation of WNW-ESE late Cretaceous normal faults, and by the generation of N–S striking normal faults of Paleocene-Eocene age. Flexural loading associated to igneous intrusions of Paleocene?- middle Eocene age also promoted the increase of subsidence in the South Flank of the basin prior to the transgression.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/embargoedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
El Huemul Formation
dc.subject
Pre-Patagoniense Transgression.
dc.subject
Late Eocene to Early Oligocene Dinoflagellate Cysts
dc.subject
Golfo San Jorge Basin, Patagonia
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
A late Eocene-early Oligocene transgressive event in the Golfo San Jorge basin: palynological results and stratigraphic implications
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-07-12T15:20:07Z
dc.journal.volume
63
dc.journal.pagination
293-309
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Paredes, José M.. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
dc.description.fil
Fil: Foix, Nicolas. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Comodoro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Guerstein, Gladys Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
dc.description.fil
Fil: Guler, Maria Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
dc.description.fil
Fil: Irigoyen, Martin. SINOPEC ARGENTINA, Exploration and Production, Inc.; Argentina
dc.description.fil
Fil: Moscoso, Pablo. SINOPEC ARGENTINA, Exploration and Production, Inc.; Argentina
dc.description.fil
Fil: Giordano, Sergio. SINOPEC ARGENTINA, Exploration and Production, Inc.; Argentina
dc.journal.title
Journal of South American Earth Sciences
dc.rights.embargoDate
2017-09-01
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2015.08.009
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jsames.2015.08.009
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981115300468
Archivos asociados