Results 21 to 30 of about 1,303 (189)

Structural and morphotectonic evolution of the Sierras Pampeanas (Argentina) constrained by a multithermochronometer approach [PDF]

, 2022
Die Sierras Pampeanas in Zentral- und Nordwestargentinien stellen ein ausgeprägtes morphotektonisches Merkmal im Bereich der flach subduzierenden Nazca Platte unter die Südamerikanische Platte zwischen ~27° S und ~33° S dar. Diese flache Subduktion wurde
Löbens, Stefan
openaire   +2 more sources

Protracted Thermal Evolution of a Migmatitic Terrane as Revealed by Multiple Geochronometers From the Retro‐Arc of the Early Paleozoic Famatinian Orogen in NW Argentina

Tectonics, Volume 42, Issue 3, March 2023., 2023
Abstract U‐Pb dates of zircon, monazite, and titanite combined with trace element composition, allows characterization of the thermal evolution of the migmatitic Agua del Sapo complex. This complex comprises Al‐rich and Ca‐rich metasedimentary rocks with a detrital zircon maximum depositional age of 550 Ma.
Pablo Farias, Roberto F. Weinberg, Alfonso Sola, Melanie Finch   +3 more
wiley   +1 more source

Cenozoic Exhumation and Deformation of the Intermontane Pastos Chicos Basin in the Southern Central Andes: Implications for the Tectonic Evolution of the Andean Plateau (Puna) and the Eastern Cordillera Between 23° and 24°S, NW Argentina

Tectonics, Volume 42, Issue 2, February 2023., 2023
Abstract The Andean Plateau of north‐western Argentina (Puna) at a mean elevation of ca. 4.2 km constitutes the southern continuation of the Altiplano; it is a compressional basin‐and‐range province comprising fault‐bounded, high‐elevation mountain ranges and largely internally drained basins with often thick sedimentary and volcaniclastic fill ...
Heiko Pingel, Anke Deeken, Isabelle Coutand, Ricardo N. Alonso, Ulrich Riller, Edward R. Sobel, John M. Cottle, Manfred R. Strecker   +7 more
wiley   +1 more source

Proterozoico y paleozoico inferior de las Sierras Pampeanas occidentales [PDF]

, 2022
Las Sierras Pampeanas constituyen la mayor unidad ígneo-metamórfica de la Argentina; las edades de sus metamorfitas y granitoides indican que evolucionaron entre el Neoproterozoico y el Paleozoico superior; desde este último a nuestros días han sido ...
Caminos, Roberto Luis, Gardini, Carlos, Dalla Salda, Luis Hugo, Toselli, Alejandro   +3 more
core  

Geomorphological evolution of the western piedmont of Cumbres Calchaquíes (Tucumán Province, NW Argentina)

Journal of Maps, 2023
The aim of this paper is to present a detailed geomorphological map of the western piedmont of Cumbres Calchaquíes (Tucumán Province, NW Argentina) bounded by the Amaicha River to the south and the administrative border with Salta Province to the north ...
María Marta Sampietro-Vattuone, José Luis Peña-Monné   +1 more
doaj   +1 more source

Constraining Andean Propagation of Exhumation at the Limit of the Eastern Cordillera, NW Argentina, Using Low‐Temperature Thermochronology in a Structural Context

Tectonics, Volume 41, Issue 8, August 2022., 2022
Abstract Within the Central Andes of NW Argentina, the spatiotemporal distribution and style of deformation is strongly influenced by pre‐Cenozoic heterogeneities, mostly related to the Salta rift extension in the Cretaceous. At the enigmatic junction of the thin‐skinned Subandean belt and the thick‐skinned Santa Barbara System, the Tilcara Range and ...
Willemijn S. M. T. van Kooten, Edward R. Sobel, Cecilia E. del Papa, Patricio Payrola, Johannes Glodny   +4 more
wiley   +1 more source

Grenvillian massif-type anorthosites in the Sierras Pampeanas [PDF]

, 2021
We report the discovery of massif-type anorthosites in the Andean basement of the Western Sierras Pampeanas of Argentina. U–Pb zircon dating (by sensitive high-resolution ion microprobe) of a cogenetic gabbronorite dyke yields ages of 1070 ± 41 Ma for ...
Casquet, César, Rapela, Carlos Washington, Dahlquist, Juan A., Saavedra, Julio, Baldo, Edgardo G., Pankhurst, Robert J., Galindo, Carmen, González Casado, J.M., Fanning, Christopher   +8 more
core  

Aproximación multiproxy a los estudios paleoambientales de la provincia de Córdoba: el Valle de Ongamira como caso

Revista del Museo de Antropologia, 2017
El objetivo general de este trabajo es el de contribuir con nueva información arqueológica que aporte a un modelo paleoecológico general para las Sierras Pampeanas Australes desde un caso de estudio: el valle de Ongamira, donde han sido planteados ...
Andrés D. Izeta, Roxana Cattaneo, Andrés Robledo, Julián Mignino   +3 more
doaj   +1 more source

Roberto Caminos (1931-1997) un geólogo regional con base petrológica: desde macro- a microescala

Revista del Museo de La Plata, 2016
Roberto Caminos (1931-1997), recibido en la Universidad de Buenos Aires, fue un notable geólogo regional. Su sólida base petrológica era apropiada para mapear terrenos ígneos y metamórficos.
Eduardo Llambías, Carlos A. Cingolani, Ana María Sato   +2 more
doaj   +1 more source

Estancia La Suiza 3 (provincia de San Luis): un estudio de la tecnología lítica [PDF]

La Zaranda de Ideas, 2009
En este trabajo se presentan los resultados obtenidos del análisis de los materiales líticos de la excavación arqueológica del sitio Estancia La Suiza 3, provincia de San Luis.
Gisela M. Sario
doaj   +1 more source