Results 41 to 50 of about 213 (157)

Construcciones temporales en la arqueología del sector serrano de la provincia de Córdoba (Argentina): una revisión de usos en los últimos 140 años de investigaciones arqueológicas

Arqueologia
La arqueología de la provincia de Córdoba, especialmente del sector meridional de las Sierras Pampeanas Australes, ha sido foco de investigaciones arqueológicas durante al menos los últimos 140 años.
Humberto Aguilar, Camila Brizuela, Julian Mignino, M. Paula Weihmüller   +3 more
doaj   +1 more source

Estratigrafía de las áreas cumbrales de las Sierras Pampeanas de Córdoba: geocronología, modelo regional, paleoambiente y paleoclima en una región poco conocida de Argentina

Revista Mexicana de Ciencias Geológicas, 2018
El sistema de Sierras Pampeanas Orientales se extiende en un am- plio sector del centro-oeste de la Argentina conformando el antepaís andino central y posee superficies de aplanamiento de origen erosivo en las áreas cumbrales, denominadas “pampas de ...
Jerónimo Matías Krapovickas, Adan Alejo Tauber   +1 more
doaj   +1 more source

A 300 kyr record of past hydroclimate change from alluvial fans in the southern Central Andes

Earth Surface Processes and Landforms, Volume 50, Issue 1, January 2025.
We dated alluvial‐fan deposits at the Sierra de Aconquija in northwestern Argentina. The alluvial fans aggraded and incised in phase with known hydroclimate changes throughout the last ~300 kyr. Abstract Alluvial fans are hypothesised to record signals of past hydroclimate changes in their depositional chronologies and slopes.
Mitch K. D'Arcy, Taylor F. Schildgen, Stéphane Bonnet, Walter Duesing, Stefanie Tofelde, Duna C. Roda‐Boluda, Hella Wittmann, Jürgen Mey, Andrew S. Murray, Ricardo N. Alonso, Manfred R. Strecker   +10 more
wiley   +1 more source

Creep on the Argentine Precordillera Décollement Following the 2015 Illapel, Chile, Earthquake: Implications for Andean Seismotectonics

Geophysical Research Letters, Volume 51, Issue 19, 16 October 2024.
Abstract The Central and South‐Central Andes form a “two‐sided” mountain belt bounded by distinct zones of convergence in the forearc and backarc flanks. Previous geodetic interseismic deformation studies found that the forearc to backarc velocity field is better explained when elastic models allow reverse aseismic slip on the Andes eastern‐flank ...
M. A. Figueroa, F. S. Sobrero, D. D. Gómez, R. Smalley Jr., M. G. Bevis, W. A. Griffith, D. J. Caccamise II, E. C. Kendrick   +7 more
wiley   +1 more source

Structural Inheritance in the Eastern Cordillera, NW Argentina: Low‐Temperature Thermochronology of the Cianzo Basin

Tectonics, Volume 43, Issue 6, June 2024.
Abstract The present‐day deformation style of the Eastern Cordillera in NW Argentina is strongly influenced by the inversion of pre‐existing Paleozoic and Mesozoic structures. In particular, the extensional faults and lithological contrasts resulting from the Cretaceous–Paleogene Salta Rift phase form heterogeneities that were preferentially ...
Willemijn S. M. T. van Kooten, Michele Vallati, Edward R. Sobel, Cecilia E. del Papa, Patricio Payrola, Daniel Starck, Alejandro Bande, Maria F. Wayar Córdoba, Ayelén T. Lapiana, Johannes Glodny   +9 more
wiley   +1 more source

Entre montes, arroyos y cerros: una aproximación comparativa a la diversidad morfológica, técnica y espacial de los grabados rupestres del sur de Santiago del Estero, Argentina

Arqueologia
En este trabajo se analizan comparativamente seis sitios con grabados rupestres ubicados en las sierras de Ambargasta y Ramírez de Velasco, al sur de Santiago del Estero.
Natalia Carden, Catriel Leon
doaj   +1 more source

Caracterización petrológica y geoquímica de las rocas plutónicas de la Sierra de La Aguada, Provincia de San Luis, Argentina: Implicaciones genéticas con el arco magmático Famatiniano

Estudios Geologicos, 2017
El presente trabajo expone una síntesis de la geología que comprende al complejo cristalino que constituye la Sierra de La Aguada, provincia de San Luis, Argentina, desde un enfoque basado en las relaciones de campo, los rasgos petrológico-estructurales ...
E. Cristofolini, M. Barzola, J. Otamendi, A. Tibaldi, A. Morosini, P. Armas, G. Camilletti   +6 more
doaj   +1 more source

Kinematic Evolution of the Santa Bárbara System in the Foreland of the Central Andes of Northwestern Argentina (26°S)

Tectonics, Volume 43, Issue 6, June 2024.
Abstract Compared to the thin‐skinned Subandean foreland fold‐and‐thrust belt of northern Argentina and Bolivia, the tectonically active morphotectonic province of the Santa Bárbara System in the Andean broken foreland of northwestern Argentina is characterized by a temporally and spatially disparate deformation style. Although there is no well‐defined
Ahmad Arnous, Victor H. García, Heiko Pingel, Laura Giambiagi, Manfred R. Strecker   +4 more
wiley   +1 more source

Sedimentation tempo in an Early Jurassic erg system: Refined chronostratigraphy and provenance of the Clarens Formation of southern Africa

Basin Research, Volume 36, Issue 3, May–June 2024.
Maximum depositional ages of the Early Jurassic Clarens Formation of southern Africa. Abstract The Clarens Formation is a widespread aeolianite deposited over southern Gondwana and represents the final phase of erg evolution in the main Karoo Basin during the Early Jurassic.
Howard V. Head, Emese M. Bordy, Robert Bolhar   +2 more
wiley   +1 more source

Implications of Flat‐Slab Subduction on Hydration, Slab Seismicity, and Arc Volcanism in the Pampean Region of Chile and Argentina

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 3, March 2024.
Abstract The Pampean flat slab in central Chile and Argentina is characterized by the inland migration and subsequent cessation of arc volcanism since the mid‐Miocene. Slab flattening also affects the distribution and number of intermediate‐depth earthquakes and the evolution of the overlying continental thermal structure.
Xiaowen Liu, Lara S. Wagner, Claire A. Currie, Mark J. Caddick   +3 more
wiley   +1 more source