Results 161 to 170 of about 888 (186)

A New Tectonic Model for the Contact Relationships of Mesozoic and Cenozoic Domains in the Principal Cordillera, Central Chile (33°–34°S)

Tectonics
Abstract The origin of the contact between Cenozoic rocks of the Western Principal Cordillera (WPC) and Mesozoic rocks of the Eastern Principal Cordillera (EPC) in the Chilean Andes at 33°–34°S has been debated for several years. Most authors interpret this boundary as a regional‐scale inverted fault that, during the early Miocene ...
Diego Alejandro Kietzmann, Alfonso Encinas, VÍCTOR A Valencia   +2 more
exaly   +3 more sources

Architecture, Kinematics, and Tectonic Evolution of the Principal Cordillera of the Andes in Central Chile (∼33.5°S): Insights From Detrital Zircon U‐Pb Geochronology and Seismotectonics Implications

Tectonics, 2021
AbstractWe assess the role of inherited structures on the Meso‐Cenozoic tectonic evolution of the main Andean Cordillera in central Chile (33°30′S‐34°S). Based on extensive field mapping, U‐Pb geochronology and palinspastic restorations along the Yeso and Volcán river valleys, we propose a tectono‐stratigraphic model for the evolution of a hybrid fold ...
Verónica Mardones, Matías Peña, Sebastián Pairoa, Jean‐Baptiste Ammirati, Mathieu Leisen   +4 more
openaire   +1 more source

Late Paleozoic to Early Jurassic tectonic development of the high Andean Principal Cordillera, El Indio Region, Chile (29–30°S)

Journal of South American Earth Sciences, 1999
Abstract Regional mapping (1:50,000) and U-Pb and K-Ar geochronology in the El Indio region refines the knowledge of the distribution, lithostratigraphy, and age of the sedimentary, volcanic, and intrusive rocks that comprise the regionally extensive Pastos Blancos Group which is equivalent to the Choiyoi Group of the Argentine Frontal Cordillera ...
Mark W. Martin, Jorge Clavero R, Constantino Mpodozis M   +2 more
openaire   +1 more source

Measuring the topography and motion of rock glaciers in the Cordillera Principal, Argentina

2018
GPS and digital photogrammetry were used to obtain topographic and motion data for the El Altar, QDM, and Los Azules Rock Glaciers in the High Dry Andes of Argentina. A total of 21 survey stations (8 at El Altar, 3 at QDM, and 10 at Los Azules) were monitored between AD 2010 and 2017 at various intervals as allowed by funding and weather conditions at ...
openaire   +2 more sources

Edad, litofacies y caracterización estructural del volcanismo Mioceno en la Cordillera Principal de Mendoza (33°S)

2022
Fil: Fennell, Lucas Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales.
Scazziota, Mauro, Fernández Paz, Lucía, Iannelli, Sofía, Fennell, Lucas Martín, Folguera Telichevsky, Andres, Litvak, Vanesa Dafne   +5 more
openaire   +1 more source

Geología y metalogénesis de la mineralización de hierro asociada al skarn de Vegas Peladas, SO de Mendoza, Cordillera Principal

2019
La comparación entre los skarns de Vegas Peladas y el skarn de Hierro Indio localizado también en el SO de Mendoza, permitió establecer que ambos presentan alteraciones en las rocas ígneas y sedimentarias y mineralización de hierro similares a las establecidas para los depósitos de Fe en skarn cálcicos.
openaire   +2 more sources

Características composicionales del volcanismo Jurásico tardío de la Cordillera Principal Argentino-Chilena (33-35°S)

Fil: Rossel, Pablo.
Fernández Paz, Lucía, Acevedo, Eliana Belén, Greco, Carina Liliana, Encinas, Alfonso, Rossel, Pablo, Litvak, Vanesa Dafne, Folguera Telichevsky, Andres   +6 more
openaire   +1 more source

Sobre los hombros de gigantes: la sección clásica del río Cuevas revisitada, Cordillera Principal de Mendoza

Fil: Martos, Federico Exequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotópica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales.
Fennell, Lucas Martín, Martos, Federico Exequiel, Peluffo, Nicolas Alejandro, Acevedo, Eliana Belén, Fernández Paz, Lucía, Morel, Luciano, Scazziota, Mauro, Naipauer, Maximiliano, Hauser, Natalia, Litvak, Vanesa Dafne, Folguera Telichevsky, Andres   +10 more
openaire   +1 more source

Las rocas volcánicas del Mioceno Temprano en la región de Altar, Cordillera Principal de San Juan, Argentina: Petrogénesis y geotectónica

2011
Fil: Franchini, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle.
Maydagán, Laura, Franchini, Marta Beatriz, Chiaradia, Massimo, Sato, Ana Maria, Llambias, Eduardo Jorge, Pons, María Josefina   +5 more
openaire   +1 more source

Unraveling tectonic inversion and wrench deformation in the Eastern Cordillera (Northern Andes) with paleomagnetic and AMS data

Tectonophysics, 2022
John Geissman, Giovanny Jiménez, German Bayona   +2 more
exaly