Antunes, I.M.H.R.Neiva, A.M.R.Silva, M.M.V.G.2011-07-272011-07-272000ANTUNES, I.M.H.R. ; NEIVA, A.M.R. ; SILVA, M.M.V.G. (2000) - The impact of old mine workings on the environment at Segura, Central Portugal. In EURESCO Conferences, Granada, 2-7- Dezembro - Geochemistry of Crustal Fluids : book of abstracts. [S.l.] : EURESCO. P. 38. Comunicação.http://hdl.handle.net/10400.11/762Só está disponível o resumo.At Segura, a Hercynian two-mica granite, muscovite granite, granodiorite porphyry and Li-bearing granitic aplite-pegmatite veins cointaining cassiterite and lepidolite intrude the cambrian schists-metagraywacke complex. Aplite veins intrude this complex and granites whereas quartz veins with cassiterite and wolframite intersect this complex and the muscovite granite.engLi-bearing granitic aplite-pegmatitesconference object