Edad de los diques sálicos del Norte de la isla de La Gomera
Several trachytic and phonolitic, radial and conical dyke-swarms crop out on the La Gomera northern region. The first age data obtained situate the intrusion episodes coinciding in time with the extrusion of the Old Basalts. The earlier dykes show a radial pattern, centred in Tamargada. They have be...
| Authors: | , , , , |
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| Format: | article |
| Publication Date: | 2001 |
| Country: | España |
| Institution: | Universidad de Huelva (UHU) |
| Repository: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Language: | Spanish |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/9526 |
| Online Access: | http://hdl.handle.net/10272/9526 |
| Access Level: | Open access |
| Keyword: | Felsic dykes Radial dyke-swarm Cone sheet complex La Gomera Canary Islands K/Ar ages |
| Summary: | Several trachytic and phonolitic, radial and conical dyke-swarms crop out on the La Gomera northern region. The first age data obtained situate the intrusion episodes coinciding in time with the extrusion of the Old Basalts. The earlier dykes show a radial pattern, centred in Tamargada. They have been dated in 8.0 Ma and 7.9 Ma. The conical swarm centred farther west, in Vallehermoso, has a slightly more recent age, between 7.5 Ma and 6.4 Ma. A third dyke-swarm is spatially associated with the conical structure and has likely a similar age |
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