Edad triasica de la Formacion Pular de ambiente continental, Sierra de Almeida, Antofagasta, Norte de Chile.Triassic age of the continental Pular Formation, Sierra de Almeida, Antofagasta, northern Chile.
Triassic age of the continental Pular Formation, Sierra de Almeida, Antofagasta, northern Chile
| dc.contributor | en-US | |
| dc.contributor | es-ES | |
| dc.creator | Niemeyer, Hans | |
| dc.creator | Zavattieri, Ana Maria | |
| dc.creator | Ballent, Sara | |
| dc.creator | Zamuner, Alba | |
| dc.creator | Gallego, Oscar | |
| dc.date | 2010-06-21 | |
| dc.identifier | http://www.andeangeology.cl/index.php/revista1/article/view/V35n1-a07 | |
| dc.identifier | 10.5027/andgeoV35n1-a07 | |
| dc.description | En esta contribucion se presentan nuevos antecedentes acerca de la edad de la Formacion Pular (Sierra de Almeida, Region de Antofagasta) que, en trabajos previos, ha sido atribuida tanto al Paleozoico Superior como al Triasico. En la Quebrada del Medio, la formacion incluye una seccion estratigrafica de 379 m de espesor constituida, de base a techo, por conglomerados, areniscas, lutitas negras bituminosas, calizas y areniscas tobaceas que, culminando con un nivel de ignimbritas pobremente soldado, se acumularon en ambientes fluvial y lacustre. Se efectua un estudio multidisciplinario de la flora y la fauna. La existencia de micro y macroflora diagnostica de Gondwana permite establecer que la Formacion Pular se deposito entre el Triasico Medio y el Triasico Tardio temprano. | es-ES |
| dc.description | In this contribution, we present a reassessment of the Pular Formation age (Sierra de Almeida, Antofagasta) that in previous papers was attributed to either the Late Paleozoic or Triassic. At Quebrada del Medio, the Pular Formation includes a 379-meter-thick stratigraphic section formed from base to top by conglomerates, sandstones, black bituminous shales and limestones, tuffaceous sandstones and a poorly welded ignimbrite that accumulated in fluvial and lacustrine environments. A multidisciplinary study of the flora and fauna was undertaken. The existence of diagnostic Gondwana microflora and macroflora allows attributing a Middle Triassic to early Late Triassic age to the Pular Formation. | en-US |
| dc.format | application/pdf | |
| dc.format | text/html | |
| dc.language | eng | |
| dc.publisher | Servicio Nacional de Geología y Minería | en-US |
| dc.relation | http://www.andeangeology.cl/index.php/revista1/article/view/V35n1-a07/411 | |
| dc.relation | http://www.andeangeology.cl/index.php/revista1/article/view/V35n1-a07/html | |
| dc.source | Andean Geology; Vol 35, No 1 (2008) | es-ES |
| dc.source | Andean Geology; Vol 35, No 1 (2008) | en-US |
| dc.source | 0718-7106 | |
| dc.source | 0718-7092 | |
| dc.title | Edad triasica de la Formacion Pular de ambiente continental, Sierra de Almeida, Antofagasta, Norte de Chile.Triassic age of the continental Pular Formation, Sierra de Almeida, Antofagasta, northern Chile. | es-ES |
| dc.title | Triassic age of the continental Pular Formation, Sierra de Almeida, Antofagasta, northern Chile | en-US |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | es-ES | |
| dc.type | en-US |
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Andean Geology
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