Datos sobre la geología y petrología del Macizo de Amanay, Fuerteventura, Canarias
The Amanay Massif in the island of Fuerteventura is built up by a series of hypoabyssal subvolcanic alkaline rocks (ultramafics, gabbros and syenites) intruded by several basaltic dyke-swarms of regional extension. The ultramafic rocks form a Pyroxenite-Carbonatite Complex surrounded by the correspo...
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1989 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | español |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/120504 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/120504 |
| Access Level: | acceso abierto |
| Palabra clave: | 552 Alkaline ultramafic carbonatite complexes Dyke swarms Canary /stands Petrología 2506.13 Petrología Ignea y Metamórfica |
| Sumario: | The Amanay Massif in the island of Fuerteventura is built up by a series of hypoabyssal subvolcanic alkaline rocks (ultramafics, gabbros and syenites) intruded by several basaltic dyke-swarms of regional extension. The ultramafic rocks form a Pyroxenite-Carbonatite Complex surrounded by the corresponding feldespatic net-work and associated fenites. The regional swarms of dykes, whose main structural trends are NNE-SSW, N-60-70º and N-115-120° seems to change gradual/y in the southern areas of the massif to lava sheets that mark the upper levels .of the formation. The last event in the area is represented by a few remanents of a formerly extenser coverture of horizontal lava flows that líe unconformabily over the dyke-swarm formation. |
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