The geometry and kinematics of enclaves in sheared migmatites from the Evora Massif, Ossa-Morena Zone (Portugal)
In the Montemor-o-Novo high-grade metamorphic terraines of western Ossa-Morena Zone (Portugal), sheared migmatites display a wide variety of distinct mesoscopic structures. Relationships of leucosome-melanosome layering and rotated enclaves allowed determination in which direction the tectonic movem...
| Autores: | , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2001 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositório: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglês |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/9507 |
| Acesso em linha: | http://hdl.handle.net/10272/9507 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Sheared migmatites Serie Negra Montemor-o-Novo metamorphic terrains Évora Massif Ossa-Morena Zone Migmatitas cizalladas Enclaves Sucesión Finiproterozoica de la Serie Negra Terrenos metamórficos Montemor-o-Novo Macizo de Évora Zona de Ossa-Morena |
| Resumo: | In the Montemor-o-Novo high-grade metamorphic terraines of western Ossa-Morena Zone (Portugal), sheared migmatites display a wide variety of distinct mesoscopic structures. Relationships of leucosome-melanosome layering and rotated enclaves allowed determination in which direction the tectonic movement occurred. We proposed non-coaxial progressive deformation to explain how the fabric elements moved during D2 sinistrai shearing |
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