Results 21 to 30 of about 151,062 (248)
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 +7 more
wiley +1 more source
Tourmalinites from the Eastern Sierras Pampeanas, Argentina
Ore Geology Reviews, 2004 Abstract In the eastern Sierras Pampeanas, Central Argentina, tourmalinites and coticules are found in close association with stratabound scheelite deposits in metamorphic terranes. In Sierra Grande (Agua de Ramon and Ambul districts) and Sierra de Altautina, tourmalinites are associated with stratabound scheelite deposits related to ...
S.M. Tourn +3 more
openaire +1 more source
Detrital-zircon geochronology and provenance of the Ocloyic synorogenic clastic wedge, and Ordovician accretion of the Argentine Precordillera terrane [PDF]
, 2015 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 collision process is a Middle?
Astini, Ricardo Alfredo +3 more
core +1 more source
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 +4 more
wiley +1 more source
Estudios Geologicos, 1992 La Formación Chango Real (sierras de Culampajá y Papachacra) es parte del magmatismo paleozoico de las Sierras Pampeanas noroccidentales (NW de la Argentina).
J. E. Lazarte
doaj +1 more source
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 +1 more
doaj +1 more source
Tectonic overview of the West Gondwana margin [PDF]
, 2008 The oceanic southern margin of Gondwana, from southern South America through South Africa, West Antarctica, New Zealand (in its pre break-up position), and Victoria Land to Eastern Australia is one of the longest and longest-lived active continental ...
Pankhurst, Robert J., Vaughan, Alan P.M.
core +1 more source
Tectonics, Volume 41, Issue 6, June 2022., 2022 Abstract Cordilleran orogens are complex tectonic systems, strongly influenced by lithospheric deformation and exhumation. However, in the type region of the Central Andes, the timing and mechanisms of deformation and mountain building remain poorly constrained, especially for the high‐elevation Puna Plateau of NW Argentina.
Mitchell McMillan +4 more
wiley +1 more source
Estudios Geologicos, 2005 Las sierras de Velasco, Copacabana y Paimán, en el ambiente de Sierras Pampeanas, están constituidas principalmente por cuerpos plutónicos del Paleozoico inferior, relacionados con el ciclo Famatiniano (Granitos Huaco, Antinaco y Paimán) y por rocas ...
J. P. López +3 more
doaj +1 more source
One kilometre-thick ultramylonite, Sierra de Quilmes, Sierras Pampeanas, NW Argentina
Journal of Structural Geology, 2015 Abstract We describe a 1 km-thick ultramylonite forming the high strain base of the >3.5 km-thick El Pichao shear zone in the Sierra de Quilmes. This shear zone thrusted granulite facies migmatites onto amphibolite facies rocks during the 470 Ma Famatinian orogeny.
M.A. Finch +4 more
openaire +3 more sources