Results 21 to 30 of about 1,719 (120)

Análisis del contacto entre las formaciones Vinchina y Toro Negro (Sierra de los Colorados, provincia de La Rioja, Argentina), sus implicancias tectónicas

open access: yesLatin American Journal of Sedimentology and Basin Analysis, 2021
En este trabajo se analiza la expresión estratigráfica y significado geológico de la superficie que separa a las formaciones Vinchina (Mioceno) y Toro Negro (Mioceno Tardío-Plioceno), las que afloran conformando la Sierra de Los Colorados (oeste de la ...
Carlos O. Limarino   +2 more
doaj   +2 more sources

Biostratigraphic significance of the latest Cambrian-earliest Ordovician agnostoid trilobites from Northwestern Argentina [PDF]

open access: yes, 2003
The biostratigraphic significance of the latest Cambrian-earliest Ordovician trilobite agnostoids from northwestern Argentina is summarized. A characterization of the faunas recognized below and above the Cambrian-Ordovician boundary is presented on the ...
Tortello, M. F.
core   +4 more sources

Teledetección aplicada al mapeo geomorfológico de los volcanes de la cuenca alta del río Chaschuil, provincia de Catamarca, Argentina

open access: yesTecnura, 2019
Contexto: La cuenca alta del río Chaschuil se encuentra en las provincias geomorfológicas de codillera Frontal y sistema de Famatina, se extiende desde el límite superior de la cuenca, a los 26° 45' 6,35" de latitud S y 68° 2'22 15" de longitud O, hasta ...
Serra Malvina   +2 more
doaj   +1 more source

Biogenic and physical sedimentary structures in latest Cambrian-earliest Ordovician mudrock facies (Famatina Range, Northwestern Argentina) [PDF]

open access: yes, 2003
Lamination is a common feature in shales and other mud-dominated rocks. When combined with other geological evidence, the diverse lamination types can provide important information about sedimentary processes and depositional environments.
Esteban, S.B.
core   +3 more sources

An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin) [PDF]

open access: yes, 2008
Late Floian conodonts are recorded from a thin limestone lens intercalated in the lower part of the San José Formation at the Carcel Puncco section (Inambari River), Eastern Cordillera of Peru.
Albanesi, G. L.,   +4 more
core   +2 more sources

Internal framework and geochemistry of the Carboniferous Huaco granite pluton, Sierra de Velasco, NW Argentina [PDF]

open access: yes, 2018
The A-type Huaco granite pluton of the Velasco range (Sierras Pampeanas of northwest Argentina) is formed by three coeval granitic facies and contains subordinate coeval-to-late facies, as well as enclaves, dikes and stocks that show different temporal ...
Grosse, Pablo   +3 more
core   +2 more sources

Geología del Segmento Chaschuil - Las Angosturas entre los 27° y 28° LS: petrología y estratigrafía del norte del sistema de Famatina, Catamarca

open access: yes, 2021
Fil: Tibaldi, Alina María. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Ciencias de la Tierra, Biodiversidad y Ambiente - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba.
Cristofolini, Eber Ariel   +8 more
openaire   +2 more sources

La Horqueta Shear Zone, Sierra de Velasco, NW Argentina: petrography, geochemistry, structures and tectonic significance [PDF]

open access: yes, 2007
La Faja de Deformación La Horqueta (FDLH) es la sexta faja de cizalla reconocida en la sierra de Velasco, Sierras Pampeanas, NO de Argentina. Esta faja separa dos tipos de metagranitoides de características petrográficas y geoquímicas contrastadas ...
Grosse, Pablo   +2 more
core   +1 more source

Tremadocian Graptolite-Conodont Biostratigraphy of the South American Gondwana margin (Eastern Cordillera, NW Argentina) [PDF]

open access: yes, 2005
The Tremadocian graptolite and conodont faunas of the Gondwana Margin recorded at the Eastern Cordillera (EC) of Salta and Jujuy provinces (northwestern Argentina) are studied.
Albanesi, G. L.,   +3 more
core   +2 more sources

Internal anatomy of an erg sequence from the aeolian-fluvial system of the De La Cuesta Formation (Paganzo Basin, northwestern Argentina) [PDF]

open access: yes, 2010
Permian red beds of the De La Cuesta Formation in the Sierra de Narváez (Paganzo Basin, northwestern Argentina) are essentially composed of sandstones associated with mudstones and subordinate conglomerates.
Colombo Piñol, Ferran   +2 more
core   +4 more sources

Home - About - Disclaimer - Privacy