| | Journal (article/letter/editorial) | data on quartz from the Borborema Pegmatite Province, northeast Brazil H. BEURLEN1,*, A. MÜLLER2, D. SILVA3...Hélio Ramos s.n., 50740530, Recife, Pernambuco, Brazil Geological Survey of Norway, Leiv Eirikssons vei...Univesitária Zeferino Vaz, 13083-970Campinas, São Paulo, Brazil [Received 16 July 2010; Accepted 12 July 2011]...rare-element class from the Borborema Pegmatite Province in northeast Brazil were analysed for fourteen trace... In the less evolved pegmatites of the beryl-columbite subtype, the Al, Li, B, and Ge concentrations | | Beurlen, Hartmut, Da Silva, Marcelo R. R., Thomas, Rainer, Soares, Dwight R., Olivier, Patrick (2008) Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare-element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita, 43 (2) 207-228 doi:10.1007/s00126-007-0152-4 | Journal (article/letter/editorial) | rareelement granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil Hartmut Beurlen...Borborema Pegmatitic Province (BPP), northeastern Brazil, is historically important for tantalum mining...to the beryl–columbite phosphate subtype. Electron microprobe analyses (EMPA) of columbite, tapiolite,...n., Cidade Universitária, 50740-530 Recife, PE, Brazil e-mail: beurlen@terra.com.br M. R. R. Da Silva...n., Cidade Universitária, 50740-530 Recife, PE, Brazil M. R. R. Da Silva e-mail: marcelor@ufpe.br R. Thomas |
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Pitombeira pegmatite, Acari, Rio Grande do Norte, Brazil