Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Marcelo R. R. Da Silva"'
Autor:
Dwight Rodrigues Soares, Josenildo Isidro Dos Santos Filho, Harmut Beurlen, Marcelo R. R. Da Silva, Francisco De Assis Da Silveira Gonzaga, Henrique Bruno Lima De Oliveira
Publikováno v:
Estudos Geológicos. 28:56-71
Pegmatitos graniticos sao fonte de numerosos minerais com elevado potencial gerador de variedades de boa qualidade gemologica, com destaque para berilo, varias especies do super-grupo da turmalina, topazio, espodumenio, quartzo, feldspatos, alem de o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::422a6b42c88118beed99ede3e8e0828b
https://doi.org/10.18190/1980-8208/estudosgeologicos.v28n1p56-71
https://doi.org/10.18190/1980-8208/estudosgeologicos.v28n1p56-71
Publikováno v:
Estudos Geológicos
Descreve-se a primeira ocorrencia de um mineral do grupo da nigerita na Provincia Pegmatitica da Borborema, no pegmatito Roncadeira, Nova Palmeira-PB. No Brasil e a segunda, pois ja havia sido descrita outra, em regolito associado a pegmatitos proxim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2af7a28d09d67db43d1820bff67226f3
https://doi.org/10.18190/1980-8208/estudosgeologicos.v28n1p35-55
https://doi.org/10.18190/1980-8208/estudosgeologicos.v28n1p35-55
Autor:
Hartmut Beurlen, Marcelo R. R. Da Silva, Dwight Rodrigues Soares, Dieter Rhede, Axel H. E. Müller, Rainer Thomas
Publikováno v:
Journal of South American Earth Sciences
The increasing strategic importance of Li- and Ta-ores during the last decades due to the strong consumption growth for rechargeable batteries and high temperature and corrosion resistant capacitors reactivated the interest of studies in pegmatite fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f628e16bbbede86c275cdd0e777f6f6e
https://doi.org/10.1016/j.jsames.2014.08.007
https://doi.org/10.1016/j.jsames.2014.08.007
Autor:
Marcelo R. R. Da Silva, Dwight Rodrigues Soares, Hartmut Beurlen, Ana Claudia Mousinho Ferreira, Sandra de Brito Barreto
Publikováno v:
The Canadian Mineralogist. 46:1097-1116
Various species of the tourmaline-group are common accessory minerals in the Boqueirao, Capoeira and Quintos Li–Be–Ta–Nb-bearing, LCT-family, rare-element-class granitic pegmatites from the Borborema Pegmatite Province (BPP), northeastern Brazi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3f9741ddfb3b040908027a20d521f0d
https://doi.org/10.3749/canmin.46.5.1097
https://doi.org/10.3749/canmin.46.5.1097
Autor:
Rainer Thomas, Marcelo R. R. Da Silva, Patrick Olivier, Dwight Rodrigues Soares, Hartmut Beurlen
Publikováno v:
Mineralium Deposita
The Borborema Pegmatitic Province (BPP), northeastern Brazil, is historically important for tantalum mining and also famous for top-quality specimens of exotic Nb–Ta oxides and, more recently, for the production of gem quality, turquoise blue, ‘P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e764c86af2ee1c1a1c55e70ff44b620
https://doi.org/10.1007/s00126-007-0152-4
https://doi.org/10.1007/s00126-007-0152-4
Publikováno v:
Chemical Geology. 173:107-123
Fluid inclusions in Be–Ta–Li–Sn-bearing pegmatites have been reported in the literature as hypersaline aqueous brines or low-salinity aqueous or aqueous–carbonic fluids. The evolution paths of volatile fluids in equilibrium with the different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bc8cae1cd7b5bd53a822b0be3034831
https://doi.org/10.1016/s0009-2541(00)00270-9
https://doi.org/10.1016/s0009-2541(00)00270-9
Publikováno v:
International Geology Review. 39:578-588
Auriferous quartz veins are known to exist in more than two dozen prospects, encompassing an area of 500 km2 northward from Serrita township (state of Pernambuco) in northeastern Brazil. Gold-bearing veins occur either with a strike of 70° to 110°,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a04e9dbdc84c54f4e7a7f38a69dcb05
https://doi.org/10.1080/00206819709465289
https://doi.org/10.1080/00206819709465289
Autor:
Marcelo R. R. Da Silva, Melgarejo, Jose Mauricio R. Da Silva, Dwight Rodrigues Soares, Hartmut Beurlen, Rainer Thomas, Dieter Rhede
Publikováno v:
Dipòsit Digital de la UB
Universidad de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname
Journal of Geosciences
Universidad de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname
Journal of Geosciences
The first occurrence of chrysoberyl in the Borborema Pegmatite Province (BPP) in northeastern Brazil is reported from up to 0.5 m large boulders in the dumps covering the Roncadeira pegmatite, worked in the 1940's for Sn- and Ta-ore concentrate. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64cc58e3e484cf4f8ece02a734afffc1
http://hdl.handle.net/2445/122362
http://hdl.handle.net/2445/122362
