The mineralized veins and the impact of old mine workings on the environment at Segura, central Portugal
At Segura, granitic pegmatite veins with cassiterite and lepidolite, hydrothermal Sn-W quartz veins and Ba-Pb-Zn quartz veins intruded the Cambrian schist-metagraywacke complex and Hercynian granites. Cassiterite from Sn-W quartz veins is richer in Ti and poorer in Nb and Nb+Ta than cassiterite from...
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| Outros Autores: | , |
| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2002
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| Texto completo: | http://hdl.handle.net/10316/3941 |
| País: | Portugal |
| Oai: | oai:estudogeral.sib.uc.pt:10316/3941 |