 | Knesel, Kurt M., Souza, Zorano S., Vasconcelos, Paulo M., Cohen, Benjamin E., Silveira, Francisco V. (2011) Young volcanism in the Borborema Province, NE Brazil, shows no evidence for a trace of the Fernando de Noronha plume on the continent. Earth and Planetary Science Letters, 302 (1) 38-50 doi:10.1016/j.epsl.2010.11.036 | Journal (article/letter/editorial) | | Young volcanism in the Borborema Province, NE Brazil, shows no evidence for a trace of the Fernando...Natal, Brazil Pós-Graduação em Geodinâmica e Geofísica (PPGG) and Serviço Geológico do Brasil, Brazil a...alkaline plugs, necks, and dikes in northeastern Brazil, previously ascribed to passage over the purported...relatively primitive (9.5–14.7 wt.% MgO), typically nepheline-normative basanites with ocean island basalt (OIB)-like...groundmass reveal the youngest continental volcanism in Brazil, with emplacement ages between 8.9 ± 0.5 and 7 |  | | Journal (article/letter/editorial) | | Paleomagnetism and rock magnetism of Fernando de Noronha, Brazil A . S c h u l t z ~, M . C a l v o R a t h e r...Geolbgicas, UFPa, C.P. 1611, 66.000 Belkrn, Parh (Brazil) 3 lnstitut/fir Geologie und Mineralogie, Schlossgarten...(K/Ar age 28.7 + 2.5 m.y.) in the province of Fortaleza (3.8°S, 38.7°W) yield a pole at 66°N, 54OE with...ferrimagnetic phases in the samples from the province of Fortaleza are magnetites with low-temperature alterations...of N a t a l , R i o G r a n d e d o N o r t e , Brazil. T h e island c o n s t i t u t e s the eastern |  | | Journal (article/letter/editorial) | | showed that the Neoproterozoic provinces of NE Brazil, Nigeria, and Cameroon contain a limited amount...Neoproterozoic metamorphism. In the Araguaia Belt, a nepheline syenite dated at ∼1 Ga (Arcanjo and Moura 2000)...and its tectonic implication, Borborema Province, Brazil, in Downloaded by [Umeå University Library] at...Kinematic evolution of the Araçuaí-West Congo orogen in Brazil and Africa: Nutcracker tectonics during the Neoproterozoic...correlation of the Vazante Group, São Francisco Basin, Brazil: Re–Os and U–Pb radiometric age constraints: Precambrian |  | BECCALUVA, L., BARBIERI, M., BORN, H., BROTZU, P., COLTORTI, M., CONTE, A., GARBARINO, C., G., C.B. G., M., A., MORBIDELLI, L., RUBERTI, E., SIENA, F., TRAVERSA, G. (1992) Fractional Crystallization and Liquid Immiscibility Processes in the Alkaline-Carbonatite Complex of Juqui (S o Paulo, Brazil) Journal of Petrology, 33 (6) 1371-1404 doi:10.1093/petrology/33.6.1371 | Journal (article/letter/editorial) | | Alkaline-Carbonatite Complex of Juquia (Sao Paulo, Brazil) ^Istituto aj Mineralogia Universita di Ferrara...Politecnica, Universidade de Sao Paulo, Sao Paulo, Brazil ^Dipartimento di Scienze delta Terra, Universita...Geocidncia, Universidade de Sao Paulo, Sao Paulo, Brazil 1 Dipartimento di Scienze della Terra, Universita...crops out in the Precambrian gneissic basement in Brazil over an area of ~ 14 km2. It consists of olivine...whereas ijolites-melteigites-urtites (4%) and nepheline syenites with minor essexites and syenodiorites |  | de Souza, Zorano Sérgio, Wang, Chao, Jin, Zhen-Min, Li, Jian-Wei, Yang, Junlong, Botelho, Nilson Francisquini, Viana, Rúbia Ribeiro, dos Santos, Larissa, Liu, Peng-Lei, Li, Wei (2019) Pyrometamorphic aureoles of Cretaceous sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental approaches. Lithos, 326. 90-109 doi:10.1016/j.lithos.2018.11.033 | Journal (article/letter/editorial) | | sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental...sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental...sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental...3000, Campus Universitário, 59078-970 Natal/RN, Brazil 2State Key Laboratory of Geological Processes and...Universitário Darcy Ribeiro, 70910-900 Brasília/DF, Brazil 5Instituto de Ciência e Tecnologia, Universidade |  | Pous, Jaume, Heise, Wiebke, Schnegg, Pierre-André, Muñoz, Gerard, Martı́, Joan, Soriano, Carles (2002) Magnetotelluric study of the Las Cañadas caldera (Tenerife, Canary Islands): structural and hydrogeological implications. Earth and Planetary Science Letters, 204 (1) 249-263 doi:10.1016/s0012-821x(02)00956-1 | Journal (article/letter/editorial) | | is absent except for an isolated segment, La Fortaleza, which forms part of the Tigaiga massif [22]....distributed approximately radially to the caldera: Fortaleza, Risco Verde, Medio, Teide, Parador and Ucanca...Montan‹a Blanca (beneath sites 35, 271) and in the Fortaleza (sites 32, 244), which disappears to the SW in...the two closest pro¢les, about 1600 m a.s.l. (Fortaleza pro¢le) and 1800 m.a.s.l. (Teide pro¢le). This...mean of 700 m whereas in the Montan‹a Blanca and Fortaleza sectors it is thicker than 1.5 km (Fig. 8). Beneath |  | Ganade, Carlos E., Cordani, Umberto G., Agbossoumounde, Yao, Caby, Renaud, Basei, Miguel A.S., Weinberg, Roberto F., Sato, Kei (2016) Tightening-up NE Brazil and NW Africa connections: New U–Pb/Lu–Hf zircon data of a complete plate tectonic cycle in the Dahomey belt of the West Gondwana Orogen in Togo and Benin. Precambrian Research, 276. 24-42 doi:10.1016/j.precamres.2016.01.032 | Journal (article/letter/editorial) | | Accepted Manuscript Title: Tightening-up NE Brazil and NW Africa connections: new U-Pb/Lu-Hf zircon data...A.S., Weinberg, R.F., Sato, K.,Tightening-up NE Brazil and NW Africa connections: new U-Pb/Lu-Hf zircon...apply to the journal pertain. Tightening-up NE Brazil and NW Africa connections: new U-Pb/Lu-Hf zircon...Post-collisional restoration indicates a thigh fit between NE Brazil and SW Africa. Ac ce p 1 2 3 4 5 6 7 8 9 10 11...11 12 13 14 Page 1 of 68 14 Tightening-up NE Brazil and NW Africa connections: new U-Pb/Lu-Hf 15 |  | | Journal (article/letter/editorial) | | temperature and pressure estimates on pyroxenes from NE Brazil mantle xenoliths F. Princivalle 1, G. Salviulo...alkaline products related to necks of NorthEastern Brazil. Intercrystalline temperatures obtained using both...Princivalle Introduction In some localities of NE Brazil (Pico Cabugi PC, Serra Aguda SA, Cerro Cora' CC)...1986). The lavas are basanites (PC and SA) or nepheline-normative olivine-rich basalts (CC) ranging in...heterogeneity from peridotite inclusions of northeastern Brazil and Paraguay. Earth Planet Sci Lett 77:203-217 |  | | Journal (article/letter/editorial) | | October 20, 1992 Summary The Tertiary alkaline, nepheline-normative olivine melanephelinite-basanite-phonolite...50~o in mode) and interstitial or poikilitic nepheline with minor proportions of Ti-magnetite, phlogopite...clinopyroxene, Ti-magnetite, plagioclase and nepheline (partly altered to analcite or zeolite minerals)...common deuteric minerals replacing the original nepheline. Limburgite differs from the basanites and nephelinites...nephelinite composition (21, 23) but the original nepheline can be almost completely replaced by zeolites |  | Ackerman, Lukáš, Ulrych, Jaromír, Řanda, Zdeněk, Erban, Vojtěch, Hegner, Ernst, Magna, Tomáš, Balogh, Kadosa, Frána, Jaroslav, Lang, Miloš, Novák, Jiří K. (2015) Geochemical characteristics and petrogenesis of phonolites and trachytic rocks from the České Středohoří Volcanic Complex, the Ohře Rift, Bohemian Massif. Lithos, 224. 256-271 doi:10.1016/j.lithos.2015.03.014 | Journal (article/letter/editorial) | | Macdonald, 2003; Macdonald and Scaillet, 2006) and Fortaleza district ⁎ Corresponding author. Tel.: +42 2 33087240;...oxides, plagioclase (bytownite–labradorite), nepheline and analcime. Trachybasalts/trachyandesites to...clinopyroxene and Fe–Ti oxides. Feldspathoids (nepheline/analcime) and olivine are rare or absent. The...In the basanites, nepheline and/or analcime occur only in the groundmass. Nepheline phenocrysts in phonolites...minerals/zeolites. The compositional variation of nepheline in the phonolitic and trachytic rocks is significant |  | | Journal (article/letter/editorial) | | 8-10 J U N E 30, 1919 OUTLINES OF THE GEOLOGY OF BRAZIL TO ACCOMPANY THE GEOLOGIC MAP OF BRAZIL1 BY JOHN............................ 199 Geologic maps of Brazil..................................................to the Society under the title “Geologic Map of Brazil.” X IV — B o l l . G eol . S oc . A m ., V o l... 190 J . C. BRANNER----OUTLINES OF THE GEOLOGY OF BRAZIL Page Tertiary................................... 192 J . C. BRANNER----OUTLINES OF THE GEOLOGY OF BRAZIL Page Geologic maps of Rio de Janeiro......... |  | | Book | | MINES AND MINERALS IN BRAZIL --= ··--· ··- ·-·=- MINES AND MINERALS IN BRAZIL J OSIAS LEAO (ECONOMIC...regarding water power and industry of electr·icity in Brazil were specially prepared at the Division of Waters........ 189 SUMMARY OF THE MINERAL RESERVES OF BRAZIL..... . ... ....... . .. 199 STATISTICAL TABLES...practically untouched, the mineral reserves of Brazil have already been a source of wealth to many and...without the discovery of the precious metals in Brazil the existence of the modern economic man would |  | | Journal (article/letter/editorial) | | S , 345 k m from the n o r t h e a s t coast of Brazil. The F e r n a n d o de N o r o n h a a r c h i...the c o n t i n e n t a l m a r g i n near Fortaleza, Brazil. Phonolitic and trachytic intrusive rocks...of olivine and rare apatite, and melilite and nepheline in the groundmass. Ankaratrites are distinguished...nephelinite 71 basanite 93 tephrite 104 basanite 79 nepheline basanite 96 cpx + hb inclusion 5 trachyte 19 trachyte...84 76 10 25 phon. tephrite essexite basanite nepheline basanite trachyte mugearite basanite alkali basalt |  | Vieira, R. M. S. P., Tomasella, J., Alvalá, R. C. S., Sestini, M. F., Affonso, A. G., Rodriguez, D. A., Barbosa, A. A., Cunha, A. P. M. A., Valles, G. F., Crepani, E., de Oliveira, S. B. P., de Souza, M. S. B., Calil, P. M., de Carvalho, M. A., Valeriano, D. M., Campello, F. C. B., Santana, M. O. (2015) Identifying areas susceptible to desertification in the Brazilian northeast. Solid Earth, 6 (1). 347-360 doi:10.5194/se-6-347-2015 | Journal (article/letter/editorial) | | Campos, Brazil Nacional de Monitoramento e Alertas de Desastres Naturais, Cachoeira Paulista, Brazil 3 Fundação...Cearense de Meteorologia e Recursos Hídricos, Fortaleza, Brazil 4 Secretaria de Agricultura Agropecuária e...Goiânia, Brazil 5 Secretaria de Extrativismo e Desenvolvimento Rural Sustentável, Brasília, Brazil 2 Centro...Bolivia, Chile, Mexico, Peru and Brazil (Arellano-Sota et al., 1996). In Brazil, the most critical desertification...to desertification in the northeastern region of Brazil and the northern regions of the states of Minas |  | | Journal (article/letter/editorial) | | Research 95 (1999) 9–39 Rapakivi granites from Brazil and adjacent areas R. Dall’Agnol *, H.T. Costi...Geociências-UFPA, Caixa Postal 1611, 66075-900 Belém, PA, Brazil Received 7 February 1997; received in revised form...Abstract A review of the rapakivi magmatism in Brazil and adjacent areas demonstrates that the dominantly...related to the Brasiliano event in southeastern Brazil. Most of the rapakivi suites of the Amazonian craton...suites have been found only in the Roraima State of Brazil. Mangerites and charnockites, associated and contemporaneous |  | | Book | | .......................................... 167 Brazil..................................................particular of Africa, the U.S.S.R., Canada and Brazil, much of it inspired by the search for exploitable...amphiboles'. The rocks included are, therefore, the nepheline syenites (phonolites) and ijolites (nephelin...instance, containing normative but not moda.l nepheline, are excluded. However, sometimes these rocks...rocks contain such a high proportion of normative nepheline that it must be present as an occult phase in |  | | Journal (article/letter/editorial) | | The bestavailableestimate U.S.S.R. 2,540,000 14 Brazil 1,180,000 7 for the intrusionage of the batholithis...veinsare thin (0.1trusionsof the batholith(e.g., Rio Fortaleza;Knox, I cm),relativelycoarsein grainsize(0.5-2...kaoliniticunderclaywith a texture inherited from parental nepheline syenite in the Kaolin depositsformed by chemicalweathering...Gordon etal.,1958). 1,fresh nepheline syenite; 2,partly kaolinized nepheline syenite; 8,massive orfragmental-appearing...preserves tosome degree the texture ofthe parent nepheline syenite; 5, pisolitic bauxite; 6, rubblebauxite |  | | Book | | under the national jurisdiction of four countries — Brazil, Portugal, Spain, Great Britain — have geological...Peter and St. Paul, lie ca. 950 km NE of Natal, Brazil, about half-way between the coasts of South America...specimen with an olivinite xenolith occurring in nepheline-basanites in the islets of Sao José, Cuscuz and...32° 15’ W and some 345 km NE of Cabo Sao Roque, Brazil and ca. 2600 km from the coast of Liberia in Africa...Noronha and the coast of Rio Grande do Norte, Brazil. (From Hidro., Min. da Marinha, 1953) map: WNE |  | | Journal (article/letter/editorial) | | OF THE GEOLOGY, MINERALOGY, AND PALEONTOLOGY OF BRAZIL* BY JO H N C. BRANNER ( Presented by title before...No comprehensive bibliography of the geology of Brazil has hitherto been attempted. M. de Margerie, in...pretense of being a bibliography of the geology of Brazil. In 1881 the Bibliotheca Nacional, at Rio de Janeiro...important Catalogo da Exposigao da Historia do Brazil in two large volumes. One of these volumes contains...Bibliotheca Nacional that relate to the geology of Brazil, and included in this are many titles of works |  | | Journal (issue) | | pieces of cancrinite, this occurs with apatite, nepheline (formerly named elaeo lite) and feldspar,size...1842:55, 1852). This rock is a variety of a biotite-nepheline-monzosyenite. Still today the rock name miascite...expedition a purple to blue mineral repla cing nepheline within the miascite. This mineral was named by...specimens in their best. E] I Special exhibit "Brazil Minerals" Munich Show posters are everythere in...lectures. Special exhibit themes of last year: Brazil and Alpine Minerals, which are bound to be great |  | | Book | | indicating a carbonaceous material. Emeralds from Brazil are usually full of thin liquid films and there...noticed in a goshenite (colourless beryl) from Brazil and in the same crystal a manganese apatite and...always twinned according to two different laws: the Brazil twin in which left- and righthanded crystals interpenetrate...heat-treatment of some brownish material from Ouro Preto, Brazil; it contains sufficient chromium to show a red...original stones were found at the Maxixe mine in Brazil in 1917 and in about 1971 stones of a similar colour |  | Yang, Lifei, Wang, Changming, Bagas, Leon, Du, Bin, Zhang, Duan (2019) Mesozoic–Cenozoic sedimentary rock records and applications for provenance of sediments and affiliation of the Simao Terrane, SW China. International Geology Review, 61 (18) 2291-2312 doi:10.1080/00206814.2019.1587671 | Journal (article/letter/editorial) | | late neoarchean–paleoproterozoic minas basin, SE Brazil: Precambrian Research, v. 291, p. 143–161. doi:...X.L., 2006, Discussion of the relationship of nepheline syenite genesis from Maomaogou and Emeishan large...maximum depositional age: An example from the cerro fortaleza formation, Austral Basin, southern Patagonia: |  | | Book (edition) | | as well as at Vittoria de Conquista in Bahia, Brazil. The word exposures describes visible plutonic...of sixfold — 111 16. Hexagonal pyramidal (nepheline) vertical axis of sixfold 6 17. symmetry horizontal...really are only pseudo-pseudomorphs! A locality in Brazil has hundreds of angular agate fillins between calcite...decades Siberia has become an important source. Brazil, New Guinea, India, Namibia, and other African...been found associated with cyrtolite in northern Brazil. ) PYRITE FeS 2 Cubic — diploidal _1 ~J Pi |  | | Journal (article/letter/editorial) | | was followed by alkali granite and, finally, nepheline syenites. Such extreme differentiates require...hydrothermal Ni-Cu-PGE sulfide ore of the Fortaleza de Minas deposit, Brazil C.M. ALMEIDA1 AND G.R. OLIVO2 Dept...hydrothermal Ni-Cu-PGE massive ore of the Fortaleza de Minas deposit The Fortaleza de Minas Ni-Cu-PGE sulfide deposit... M.Sc. thesis, Universidade Estadual Paulista, Brazil. 110p. (unpublished) [2]Brenner et al., (1990) |  | | Book | | containing feldspar and powdery altered crystals of nepheline. These represent the last melts to be squeezed...Santa Lucia at a small viewpoint overlooking Fortaleza Grande, one of two pinnacles of lava flows within...anorthern wall to the Caldera, apart from the short Fortaleza section in the northeast. The missing section...oldest building in the town is the Castillo de Fortaleza de San Miguel, an early sixteenth-century fortification...Caldera To Orotava ey, La » de Las Canadas El Fortaleza Pie f Portillo Kee heoe & path of walk |
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