Results 21 to 30 of about 141 (105)
Estudio Palinológico de la Formación la Veteada en su Localidad Tipo (Pérmico Superior), Sierra de Famatina, la Rioja, Argentina. Granos de Polen Estriados, Plicados y Colpados [PDF]
Ameghiniana, 2014 Abstract. PALYNOLOGICAL STUDY OF LA VETEADA FORMATION AT ITS TYPE LOCALITY (UPPER PERMIAN), FAMATINA RANGE, LA RIOJA PROVINCE, ARGENTINA. STRIATE, PLICATE AND COLPATE POLLEN GRAINS. This is a systematic study of the palynological assemblages recorded in the upper part of the La Veteada Formation (upper La Veteada Association), which constitutes the ...
Gutierrez, Pedro Raul +2 more
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Revista Mexicana de Ciencias Geológicas, 2018 La Formación La Aguadita aflora en la zona central del Sistema de Famatina (28º39’ S), antepaís andino de Argentina, y es interpretada como producto de sedimentación sinorogénica en una cuenca de retroarco desarrollada en el margen occidental de ...
Gilda Collo +2 more
doaj +1 more source
, 2019 XXXVII Jornadas Argentinas de ...
Sanchez, M. D., Las Peñas, Maria Laura
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La industria metalúrgica en la sierra de Famatina (La Rioja, Argentina) durante el siglo XIX: primera caracterización del espacio construido de los establecimientos de beneficio [PDF]
Arqueología y SociedadLa industria minera de la provincia de La Rioja (Argentina) ha sido objeto de interés desde tiempos coloniales, con el foco puesto en las minas y sus riquezas, pero poco se ha hablado de los espacios productivos donde se llevaba a cabo la transformación del mineral para su comercialización.
Chechi, Florencia Mariela
core +4 more sources
Edad y paleoambiente de la Formación del Buey (Mioceno), sierra de Famatina, La Rioja, Argentina: evidencias sedimentológicas y palinológicas [PDF]
, 2006 Sedimentary facies and palaeoenvironments are described and interpreted from the del Buey Formation, Famatina Range, La Rioja Province. Miospores and algae are reported for the first time in this unit. The del Buey Formation is mainly composed by pinkish to reddish shales, some conglomerates, and conspicuous levels of mudstones, interpreted as ...
Barreda, Viviana D. +3 more
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Ameghiniana, 2017 In this systematic study of palynological assemblages from the upper part of the type section of the La Veteada Formation, 38 species of trilete and monolete spores are described and/or illustrated. Two new species are instituted: Lundbladispora verrucosa and Secarisporites triangularis, and a new combination Secarisporites imperialis (Jansonius) is ...
Zavattieri, Ana Maria +2 more
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Geologica Acta, 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 ...
M.F. Tortello
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The Cambrian System in Northwestern Argentina: stratigraphical and palaeontological framework
Geologica Acta, 2003 Cambrian sequences are widespread in the early Paleozoic of the Central Andean Basin. Siliciclastic sediments dominate these sequences although several minor occurrences of carbonates and volcanic rocks have been observed.
Guillermo F. Aceñolaza
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, 2021 En este trabajo se estudia la mineralización del distrito Cerro Negro, Sierra de Famatina, La Rioja, Argentina. Las observaciones calcográficas, las determinaciones químicas y los espaciados de rayos-X permitieron identificar algunos minerales de plata ...
Angelelli, Victorio +2 more
core
TAXON, Volume 73, Issue 6, Page 1437-1459, December 2024.Abstract Phacelia sect. Glandulosae, with ca. 62 taxa, is the most diverse of the 11 sections of the genus Phacelia (Hydrophyllaceae). The family is largely restricted to North and Central America, but the genus Phacelia has an amphitropical distribution with nine species reported from western South America, five of which have been assigned to P. sect.
Maria‐Anna Vasile +3 more
wiley +1 more source