Organización interna de unidades de alta presión en dominios tectónicos profundos (Complejo de Cabo Ortegal, NO España)
High-pressure volcanic-arc granulites, N-MORB eclogites and shallow crustal volcanosedimentary high-pressure gneiss units occur in the high-pressure metamorphic fold-nappes and ductile thrusts that make up the Cabo Ortegal upper allochthons. Confluence of units from such disparate tectonic settings...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2003 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/9074 |
| Acceso en línea: | http://hdl.handle.net/10272/9074 |
| Access Level: | acceso abierto |
| Palabra clave: | High-pressure metamorphism Deformation Sheath folds Subduction Cabo Ortegal Spain |
| Sumario: | High-pressure volcanic-arc granulites, N-MORB eclogites and shallow crustal volcanosedimentary high-pressure gneiss units occur in the high-pressure metamorphic fold-nappes and ductile thrusts that make up the Cabo Ortegal upper allochthons. Confluence of units from such disparate tectonic settings occurred at an eo-Hercynian convergent plate margin, that in this case, involved oceanic, arc and continental lithosphere. We argue that the sheath-like form of the fold nappes and the mineral and stretching lineations defined by high-pressure mineral assemblages subparallel to fold axes depict the internal organization of high-pressure sheets at deep tectonic realms of an oblique subduction/collision orogenic channel |
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