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Mostrando ítems 1-10 de 59
Sea level fluctuations and forced regressions in the Silurian basin in the Precordillera of Western Argentina
(Taylor & Francis Ltd, 2006-12)
Silurian strata, as part of an Upper Ordovician to Lower Devonian siliciclastic succession, are widely distributed in the Central Precordillera of Western Argentina, but they are scarce in the Eastern Precordillera, and ...
Detrital-zircon geochronology and provenance of the Ocloyic synorogenic clastic wedge, and Ordovician accretion of the Argentine Precordillera terrane
(Geological Society of America, 2015-10)
The Precordillera terrane in northwestern Argentina is interpreted to be anexotic (Laurentian) continental fragment that was accreted to western Gondwanaduring the Ordovician. One prominent manifestation of the subductionand ...
Faulting and erosion in the Argentine Precordillera during changes in subduction regime: Reconciling bedrock cooling and detrital records
(Elsevier Science, 2015-12)
The Argentine Precordillera is an archetypal retroarc fold-and-thrust belt that records tectonics associated with changing subduction regimes. The interactions between exhumation and faulting in the Precordillera were ...
Palynological record of the Silurian/Devonian boundary in the Argentine Precordillera, western Gondwana
(E Schweizerbartsche Verlags, 2014-10)
The palynological assemblages of the upper part of the Los Espejos Formation and the lower part of the Talacasto Formation, in the northern outcrops of San Juan Precordillera, Argentina, were studied. This section spans ...
Middle Ordovician conodonts and graptolites at Los Cauquenes range, central Precordillera of San Juan, Argentina
(Asociación Paleontológica Argentina, 2013-07)
The Ordovician System is superbly represented in the Precordillera of western Argentina, at the Andean foothills. During the Middle Ordovician, an important paleogeographical rearrangement of depocenters and source areas ...
Extensional tectonics and gravitational collapse in an Ordovician passive margin: The Western Argentine Precordillera
(Elsevier Science, 2008-03)
The paper describes ubiquitous extensional structures developed in a passive margin of Ordovician age in the Argentine Precordillera. These extensional structures include normal faults and boudinaged sequences. In some ...
Cambrian-Ordovician conodonts from slump deposits of the Argentine Precordillera: new insights into its passive margin development
(Cambridge University Press, 2016-10)
The Los Sombreros Formation represents the western continental margin slope deposits of the Argentine Precordillera, a sub-terrane accreted to Gondwana as part of the Cuyania Terrane in early Palaeozoic times. The age of ...
Middle Darriwilian conodont zones in the uppermost San Juan limestone and the lower member of the Las Aguaditas formation, central Precordillera of San Juan, Argentina
(Asociación Paleontológica Argentina, 2013-07)
The geological province of Precordillera is located in western Argentina. It extends 450 km meridionally and 110 km from east to west (Fig. 1) (Furque and Cuerda, 1979). The Lower Paleozoic stratigraphy is characterized ...
Systematic, morphometric and palaeobiogeographic study of Blainia gregaria Walcott, 1916 (Trilobite, Ptychopariida): Middle Cambrian of the Precordillera of western Argentina
(Wiley, 2012-01-13)
The ptychoparioid trilobite Blainia gregaria Walcott, 1916 is described for the first time from the late middle Cambrian (Series 3) of the Argentine Precordillera. It occurs commonly in the upper part of La Laja Formation, ...
Upper ordovician (Sandbian) bryozoan fauna from argentine precordillera
(Paleontological Society, 2012-09)
A stenolaemate bryozoan fauna containing 20 species belonging to 18 genera is described from the Las Plantas and Las Aguaditas formations (Upper Ordovician, Sandbian) in San Juan Province, Precordillera of Western Argentina. ...