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Ana Mestre,Mercedes Gallardo,María José Salas,Susana Heredia
Pág. 423 - 444
The microfossil hosted in the strata of the upper part of the San Juan Formation has been widely studied in several sections to the northward of the Argentinian Central Precordillera. In contrast, the coeval strata at the Los Baños de Talacasto section, ...
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Gustavo Gonzalez Bonorino,Felix Gonzalez Bonorino
Pág. 97 - 107
Las rocas igneas y sedimentarias del Proterozoico superior a Silurico, y sus equivalentes metamorficos, aflorantes en el oeste de Argentina y en el este de Chile entre 28° y 34°S, son aqui interpretadas como representantes de un margen continental de tip...
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Fernando Enrique Lopez,Cintia Kaufmann
Pág. 201 - 216
New data and a biostratigraphic review on Silurian graptolites of the La Chilca Formation are presented. Silurian retiolitids and monoserial graptolites are described for the first time in the lower layers of the Salto Macho Member at the Poblete Norte s...
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Florencia Moreno,Ana Mestre,Susana Heredia
Pág. 302 - 317
The calcareous microfossils present in the Ordovician and Silurian carbonate successions around the world are limited to few studies and their biological affinities and environmental preferences remain indefinite. In the carbonate Ordovician San Juan For...
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Marcos Podesta,Gustavo Ortiz,Paola Orozco,Patricia Alvarado,Facundo Fuentes
Pág. 327 - 344
The Iglesia basin, in the San Juan Province, is the northern part of a Cenozoic piggy-back basin (the Iglesia-Calingasta-Uspallata basin), located above of the active flat-slab subduction zone of western Argentina. This basin is located between two mount...
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Gustavo Correa,Pedro Raúl Gutiérrez
Pág. 316 - 332
The Tupe and Patquía formations are known for their marine, deltaic, river, and eolian deposits that record different Late Paleozoic events in the Paganzo Basin. However, in the area of the Río Francia (Province of San Juan, Argentina), these units are r...
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Matías J. Mango,Guillermo L. Albanesi
Pág. 577 - 598
This study deals with the conodont biostratigraphy from the uppermost part of La Silla Formation (9.6 m) and the overlying San Juan Formation (264.7 m), at the Cerro La Silla section, Central Precordillera of San Juan, Argentina. The 41 samples of carbon...
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Fernanda Serra,Nicolás A. Feltes,Matías Mango,Miles A. Henderson,Guillermo L. Albanesi,Gladys Ortega
Pág. 125 - 143
The Ordovician System is extensively represented in the Precordillera of San Juan Province, Argentina. At the Cerro La Chilca in the Jáchal area, the limestone of the San Juan Formation is paraconformably overlain by interbedded limestone and shale of th...
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Susana Heredia,Ana Mestre,Cintia Kaufmann,Tatiana Soria
Pág. 336 - 344
The stratigraphic record of the Pygodus serra conodont Zone in the Cuyania terrane of western Argentina is discussed in this contribution. Three well-known sections were sampled in Precordillera and the San Rafael Block. The studied successions are compo...
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Gustavo G. Voldman,Juan L. Alonso,Luis P. Fernández,Gladys Ortega,Guillermo L. Albanesi,Aldo L. Banchig,Raúl Cardó
Pág. 399 - 409
The Rinconada Formation is a mélange that crops out in the eastern margin of the Argentine Precordillera, an exotic terrane accreted to Gondwana in Ordovician times. Its gravity-driven deposits have been studied by means of conodont and graptolite biostr...
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Matías J. Mango,Guillermo L. Albanesi
Pág. 274 - 299
The present study deals with the conodont biostratigraphy from the middle and upper parts of the San Juan Formation (Lower-Middle Ordovician) exposed at the Los Gatos creek section, west of the cerro Viejo de Huaco, Central Precordillera of San Juan Prov...
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Nicolás A. Feltes, Guillermo L. Albanesi, Stig M. Bergström
Pág. 60 - 85
Middle Darriwilian to lower Sandbian conodonts were recorded from the Las Aguaditas Formation at
its type section in the Argentine Precordillera. A total of 9,974 conodont specimens were recovered from 46 carbonate
samples, which represent 68 species of ...
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Gonzalo De la Fuente-De Val, Hermann A. Mühlhauser
Pág. 8 - 17
El propósito de este trabajo fue conocer las actitudes, percepciones y preferencias de visitantes por los paisajes precordilleranos de Santiago. Se construyó y aplicó un cuestionario a visitantes y se realizaron entrevistas en distintos sitios de la prec...
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Gabriela Lara Ferrero,Laura Perucca,Martin Rothis,Ana Pantano,Mauro Saez
Pág. 145 - 160
Several parallel east verging thrusts with Quaternary tectonic activity have been identified in the eastern piedmont of Cordón de Las Osamentas, Central Precordillera of Argentina. We grouped these structures into the Maradona Fault System (MFS). The mai...
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Sebastián Oriolo,Ernesto Osvaldo Cristallini,María Silvia Japas,Daniel Leonardo Yagupsky
Pág. 20 - 35
Analogue models combining different sets of preexisting structural weaknesses were developed to understand their evolution during regional ~ENE shortening. Strain analysis of simulations was performed with the GEODEF 1.1 software, a tool that allows to q...
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Gustavo A. Correa,Maria L. Carrevedo,Pedro R. Gutierrez
Pág. 22 - 52
A sedimentological, paleontological and paleoenvironmental study of the Andapaico Formation is presented (southern sector of the Paganzo Basin, San Juan). This unit overlies with an angular unconformity the Punta Negra Formation, and has a thickness of 4...
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Gonzalo De La Fuente-de Val, Hermann A. Mühlhauser
Pág. 23 - 31
El propósito del trabajo fue conocer las actitudes, percepciones y preferencias de visitantes por los paisajes precordilleranos de Santiago. Se construyó y aplicó un cuestionario a visitantes y se realizaron entrevistas en profundidad en distintos sitios...
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Mario Vergara,Diego Morata,Rosemary Hickey-Vargas,Leopoldo Lopez-Escobar,Ingrid Beccar
Pág. 23 - 41
Upper Eocene to Middle Miocene volcanic rocks are found in the Colbún area, Linares Precordillera, central Chile (35º35'-36ºS). Based on stratigraphic characteristics, K-Ar and Ar-Ar dating, two different units are recognized: 1-a Lower Unit (Upper Eocen...
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Mario Vergara,Diego Morata,Rosemary Hickey-Vargas,Leopoldo Lopez-Escobar,Ingrid Beccar
Pág. 23 - 41
Upper Eocene to Middle Miocene volcanic rocks are found in the Colbún area, Linares Precordillera, central Chile (35º35'-36ºS). Based on stratigraphic characteristics, K-Ar and Ar-Ar dating, two different units are recognized: 1-a Lower Unit (Upper Eocen...
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Alberto H. Cominguez,Victor A. Ramos
Pág. 3 - 14
RESUMEN. Los datos de reflexion sismica profunda obtenidos por reprocesamiento de lineas de Vibroseis industriales, recolectadas por Yacimientos Petroliferos Fiscales (YPF) entre las provincias geologicas de la Precordillera y Sierras Pampeanas, permiten...
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