Geología y evolución magmàtica del eje volcánico de Paymogo, Faja Piritica Ibérica
A field and petrographic study is presented on volcanic, subvolcanic and sedimentary rocks from the Paymogo volcanic lineament, northwestern spanish Iberian Pyrite Belt (IPB). In this area, dacitic to rhyolitic rocks, are interfingered within a detritic sequence, showing a very complex spatio-tempor...
| Autores: | , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 1997 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositório: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | espanhol |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/10312 |
| Acesso em linha: | http://hdl.handle.net/10272/10312 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Iberian Pyrite Belt Dacite Rhyolite Volcaniclastic rocks Peperites |
| Resumo: | A field and petrographic study is presented on volcanic, subvolcanic and sedimentary rocks from the Paymogo volcanic lineament, northwestern spanish Iberian Pyrite Belt (IPB). In this area, dacitic to rhyolitic rocks, are interfingered within a detritic sequence, showing a very complex spatio-temporal relationship. This starts with dacitic coherent and volcaniclastic facies, followed by rhyolitic pyroclastics and other volcaniclastic and sedimentary rocks. The whole sequence was finally intruded by shallow subvolcanic acid rocks in various styles. These local, complex variations in igneous processes cannot be interpreted in terms of any of the evolutionary models for the IPB magmatism, implying that current larger-scale general models of igneous evolution in this region should be considered with caution |
|---|