Show simple item record

dc.contributor.author García, Victoria Josefina
dc.contributor.author Rubinstein, Claudia Viviana
dc.date.available 2018-09-13T15:54:57Z
dc.date.issued 2015-02
dc.identifier.citation García, Victoria Josefina; Rubinstein, Claudia Viviana; New biostratigraphic proposal for the lower palaeozoic tucunuco group (San Juan precordillera, Argentina) based on marine and terrestrial palynomorphs; Asociacion Paleontologica Argentina; Ameghiniana; 52; 2; 2-2015; 265-285
dc.identifier.issn 1851-8044
dc.identifier.uri http://hdl.handle.net/11336/59512
dc.description.abstract This is an exhaustive analysis of the palynomorph assemblages, organic-walled marine phytoplankton and miospores from the Tucunuco Group. This group includes the La Chilca and Los Espejos formations and is exposed in the Central Precordillera of San Juan. Four localities were included in this study, i.e., Río Jáchal, Río de las Chacritas, Cerro La Chilca and Quebrada Ancha. Previous data concerning several fossil groups, such as graptolites, conodonts and brachiopods, suggest a mainly Llandovery-Wenlock? age for the La Chilca Formation and a Wenlock to locally Lochkovian age for the Los Espejos Formation. Marine palynomorphs are predominant in the two formations in all the studied sections. Although terrestrial palynomorphs are the minor component, trilete spores are abundant, diverse and biostatigraphically relevant in the Los Espejos Formation. Correlations using marine palynomorph assemblages and miospore biozones recognized worldwide allow constraining the age of the two stratigraphic units. Based on marine phytoplankton, the middle-upper part of the La Chilca Formation is assigned to the Wenlock. In the Los Espejos Formation, palynomorph assemblages allow the recognition, from the base to the top, of the Wenlock with doubts, the Ludlow, and the Pridolí. The Lochkovian has been documented exclusively in the northern part of the basin. This confirms the presence of the Silurian/Devonian boundary in the upper part of the Los Espejos Formation. A north-south correlation panel of the studied sections is presented.
dc.format application/pdf
dc.language.iso eng
dc.publisher Asociacion Paleontologica Argentina
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject ARGENTINIAN PRECORDILLERA
dc.subject BIOSTRATIGRAPHY
dc.subject DEVONIAN
dc.subject MIOSPORES
dc.subject ORGANIC-WALLED PHYTOPLANKTON
dc.subject SILURIAN
dc.subject TUCUNUCO GROUP
dc.subject.classification Meteorología y Ciencias Atmosféricas
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title New biostratigraphic proposal for the lower palaeozoic tucunuco group (San Juan precordillera, Argentina) based on marine and terrestrial palynomorphs
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-08-28T19:04:45Z
dc.journal.volume 52
dc.journal.number 2
dc.journal.pagination 265-285
dc.journal.pais Argentina
dc.journal.ciudad Buenos Aires
dc.description.fil Fil: García, Victoria Josefina. 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: Rubinstein, Claudia Viviana. 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.journal.title Ameghiniana
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.5710/AMGH.14.12.2014.2813
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/10.5710/AMGH.14.12.2014.2813
dc.conicet.fuente individual


Archivos asociados

Icon
Blocked Acceso no disponible

This item appears in the following Collection(s)

Show simple item record

info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)