 | | Journal (article/letter/editorial) | | petrography of the Portuguese West African colony of Angola, and of its three provinces that of Benguella is...descriptions of rocks from Angola, and especially of its northern province, Loanda, have been given by...shonkinite respectively. * BERG, G., "Gesteine von Angola, Sao Thome, und St Helena," Tscher, min. u. petr...Contribution to the Petrology of North-western Angola," Oeol. Mag., dec. vi, vol. ii, pp. 228-232 ; 267-272... P. DE, and MATTOS, A. A. DE, A Golonisagao de Angola, Lisbon, 163 pp., 1912. TRANS. ROY. SOC. EDIK, |  | | Journal (article/letter/editorial) | | Monte Verde Carbonatite–Alkaline–Agpaitic Complex (Angola) Sandra Amores-Casals 1,2, *, Antonio Olimpio Gonçalves...Universidade Agostinho Neto, Luanda, Caixa Postal 815, Angola; tonygoncalves72@hotmail.com Institut de Ciències...agpaitic minerals; eudialyte; rinkite; loparite; Angola 1. Introduction Undersaturated alkaline rocks...between Huambo and Kwanza Sul provinces, is one of the least studied carbonatite complexes in Angola. As...Tchivira [25,26], Bonga [26–30], Virulundo [31], Bailundo [32], and Catanda [33]. Therefore, an accurate |  | Amores-Casals, , Melgarejo, , Bambi, , Gonçalves, , Morais, , Manuel, , Neto, , Costanzo, , Molist, (2019) Lamprophyre-Carbonatite Magma Mingling and Subsolidus Processes as Key Controls on Critical Element Concentration in Carbonatites—The Bonga Complex (Angola) Minerals, 9 (10) 601 doi:10.3390/min9100601 | Journal (article/letter/editorial) | | Concentration in Carbonatites—The Bonga Complex (Angola) Sandra Amores-Casals 1,2, *, Joan-Carles Melgarejo...Universidade Agostinho Neto, Luanda, Caixa Postal 815, Angola; aurorabambi@hotmail.com (A.B.); tonygoncalves72@hotmail...is one of the largest carbonatitic outcrops in Angola and worldwide [75], with well-known resources in...carbonatite, located SE of Quilengues, Huila Province, Angola (Figure 1), is a carbonatite-alkaline complex...graben, a megastructure cutting Congo, Kasai and Angola Cratons and reactivated during the opening of the |  | Campeny, Marc, Kamenetsky, Vadim S., Melgarejo, Joan C., Mangas, José, Manuel, José, Alfonso, Pura, Kamenetsky, Maya B., Bambi, Aurora C.J.M., Gonçalves, Antonio O. (2015) Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on the parental melt. Lithos, 232. 1-11 doi:10.1016/j.lithos.2015.06.016 | Journal (article/letter/editorial) | | Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on...O., Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on...MANUSCRIPT Carbonatitic lavas in Catanda (Kwanza Sul, Angola): mineralogical and geochemical constraints on...Geologia, Universidade Agostinho Neto, Luanda, Angola. Pura Alfonso, Dept. Enginyeria Minera i Recursos...Luanda, Angola. Antonio O. Gonçalves, Depto. Geologia, Universidade Agostinho Neto, Luanda, Angola. Abstract |  | | Journal (article/letter/editorial) | | Agostinho Neto, Av. 4 de Fevereiro 7, 815 Luanda, Angola Earth and Ocean Sciences, School of Natural Sciences...exsolution in the volcanic carbonatites. K EY WORDS : Angola, carbonatite, zonation in pyrochlore, fluorine,...lines used for the analyses were: fluorite (FKa); albite (NaKa); periclase (MgKa); synthetic Al2O3 (AlKa);...carbonatites in Africa (Le Bas, 1971) extends into Angola where the majority of carbonatites crop out along...belong to the Paraná Angola Etendeka F IN CARBONATITIC PYROCHLORE Province and occur as ring complexes |  | | Journal (article/letter/editorial) | | Norvege Fen Cap Vert Ile de Fogo Maroc Tamazert Angola #sO/SMOW 7,15 6=C/PDB -6,6 8,OO f 0,2 7,75 f...et apatite Sovite a magnetite et apatite Coola Angola Monte-Verde 14,l + 0,05 - 2,2 & 0,2 5,5 f 091...P P 95 96 P 97 P P 98 99 Angola Bdhmdo P 100 P 101 P 102 Angola Tchivira-Bonga Afrique du Sud...pyrrotite Sdvite a pyrrotite Rauhaugite a giobertite et albite 7,s f 0,l Cal 12; 6 f 0,3 Do1 11,Q f 0,15 -5...$AVOY J. <m%kE et CLAUDE Coola Monte Verde Bailundo Tchivira-Bonga . -6 cf -8 4 6 6 10 12 |  | | Journal (article/letter/editorial) | | Types of Deposits: 1. Plutonic a. acid rocks: albite, riebeckite,and potashgranites b. intermediaterocks:...TANTALUM 383 3. fenitized meta-sediments:albitite, albite-garnetschists,sheridaniteschists, with a small...phonolite,ijolite, trachyte, aln6ite, dolerite, albite-calcite pegmatite 10. late silicification,quartz-fluorite...Tundulu 1 0, 07 Chilwa 2 X 2 [Longonjo 4.5 Bailundo 5 Arax& 4 RESERVES Core, miles Lueshe 1...therefore difficult to distinguish between original albite and other albitizedfelspars. Potashgranitesin easternUgandaare |  | Thompson, R., Smith, P., Gibson, S., Mattey, D., Dickin, A. (2002) Ankerite carbonatite from Swartbooisdrif, Namibia: the first evidence for magmatic ferrocarbonatite. Contributions to Mineralogy and Petrology, 143 (3) 377-396 doi:10.1007/s00410-002-0350-0 | Journal (article/letter/editorial) | | basement at Swartbooisdrif, adjacent to the NW Namibia-Angola border. Their age is uncertain but probably 1...Geological formations are not differentiated in Angola, and the Dwyka sediments are not discussed in this...carbonatites – which extends for 800 km northwards into Angola (Issa Filho et al. 1991; Alberti et al. 1999)....to take place. Menge (1986) described sodalite, albite, analcite, cancrinite, biotite and riebeckite from...percent each of calcite and magnetite, traces of albite and quartz, and very rare pyrochlore. The overall |  | Melgarejo, Joan C., Costanzo, Alessandra, Bambi, Aurora C.J.M., Gonçalves, Antonio O., Neto, Andrés B. (2012) Subsolidus processes as a key factor on the distribution of Nb species in plutonic carbonatites: The Tchivira case, Angola. Lithos, 152. 187-201 doi:10.1016/j.lithos.2012.06.024 | Journal (article/letter/editorial) | | species in plutonic carbonatites: The Tchivira case, Angola Joan C. Melgarejo a, Alessandra Costanzo b,⁎, Aurora...Geologia, Universidade Agostinho Neto, Luanda, Angola a r t i c l e i n f o Article history: Received...Tchivira carbonatite, located 400 km south of Luanda (Angola), is a good example of a carbonatite body produced...lines used for the analyses were: fluorite (F, Kα); albite (Na, Kα); periclase (Mg, Kα); synthetic Al2O3 (Al...Geological setting Most of the carbonatite complexes in Angola are found in the Lucapa structure (deVries Lapido-Loureiro |  | Le Bas, M. J., Xueming, Y., Taylor, R. N., Spiro, B., Milton, J. A., Peishan, Z. (2007) New evidence from a calcite-dolomite carbonatite dyke for the magmatic origin of the massive Bayan Obo ore-bearing dolomite marble, Inner Mongolia, China. Mineralogy and Petrology, 90 (3) 223-248 doi:10.1007/s00710-006-0177-x | Journal (article/letter/editorial) | | and seen in carbonatites elsewhere e.g. at Bailundo, Angola, Chilwa, Malawi, and Chishanya, Zimbabwe (Woolley...wide ‘enclave’ of albitite (mainly composed of albite with up to 11.8 wt% Na2O, i.e. Ab99, plus a scatter...carbonatites rarely exceeding 1 km diameter, but Bongo in Angola is one that exceeds 3 km diameter (Lapido-Loureiro...Lapido-Loureiro FE (1973) Carbonatitos de Angola. Mem Trab Inst Invest Sci Angola 11: 242 pp Le Bas MJ (1977) Ca...PM (2004) The carbonatite-marble dykes of Abyan Province, Yemen Republic: the mixing of mantle and crustal |  | | Book (edition) | | Finland, Guyana, Venezuela, Brazil, Paraguay, Angola and South-West Africa, i.a. Carbonatites are now...wall-rock alterations brand the area as an alkalic province. The types of carbonatite occurrences may be grouped...Larsen (1940) has pointed out, a petrographic province must be defined not only with respect to space...assignment of some occurrences to a particular province rests on geographic, geologic, or petrologic affinities...\e ‘: ! | Figure 2-1] The Arkansas alkalic province (Erickson and Blade, 1963). rather than on temporal |  | | Book | | the Canary Islands, the North Atlantic Igneous Province and the Sunda Arc with a focus on magmatic crystals.... Composition of Alnö feldspar in terms of the albite, orthoclase and anorthite components (after Morogan...(ac) and Alnö (acl) in Sweden; the Kola alkaline province (acl) in Russia; Sokli (cl) and Iivara (a) in...Nature 195:1075–1076 Doig R (1970) An alkaline rock province linking Europe and North America. Can J Earth...and carbonatitic magmatism in the Kola Alkaline Province: a review. Lithos 85:48–75 Fischer T, Burnard |  | | Report (issue) | | Bailey and S. Kearns 12. Post-Paleozoic magmatism in Angola and Namibia: A review . . . . . . . . . . . . ...provinces of the Saharan zone, Cameroon volcanic line, Angola and Namibia, and the East African Rift system....and the Ethiopian-Yemenite “Afar” flood basalt province (compiled from Schandelmeier and Reynolds, 1997;...compositionally related to the mainly alkaline province of intraplate magmatism in north Sudan and south...xenoliths has ~40–49 mol% anorthite, ~50–59 mol% albite, and <~1.6 mol % K-feldspar. Compositional variations |  | | Report (volume) | | geology ‘The Making of the Earth’ Visit to Benguella, Angola The classification of coast types, the nature and...Earthquake studies. 1912. Expedition to Benquella, Angola. 1913. Publication of ‘The nature and origin of...description in French of radiolarians inside authigenic albite crystals from the Ligurian Appenines (Gregory 1890e)...Gregory, J. W. 1890e. The occurrence of Radiolaria in albite crystals [Review of papers by A. Issel]. Geological...Territory and the east of Portuguese-controlled Angola to German Southwest Africa. He concluded that ‘England’ |  | | Book (volume) | | of a geographic feature, the name of a state or province, or the name of a city, then the name of the country...(Ont. and Quebec) BT Lakes Ontario Lakes Quebec (Province) Abitibi Greenstone Belt (Ont. and Quebec) BT...Greenstone belts Ontario Greenstone belts Quebec (Province) — — — — USE Abkhaz Abkhazians philology ...Abraham, Plains of (Quebec) BT Plateaus Qu6bec (Province) Abraham, Plains of (Quebec), Battle BT Quebec...works dealing collectively with the countries of Angola, Cape Verde, Guinea-Bissau, — Politics and government |  | | Book | | Sinian Reservoirs of the Weiyuan Area, Sichuan Province: The Oldest Gas in China y. Xu, P. Shen, Y. Li...isotopically fractionated sulphides in Superior Province, Canada. Chern GeoI65:341-358 Campbell SE (1979)...of weathering profile silcretes, southern Cape Province, South Africa. In: Wilson RCL (ed) Residual deposits...Ga) forms the southern boundary of the Superior province of the Canadian Shield. Uranium-bearing conglomerate...GTS profile. Fine-grained illite (/) has replaced albite exsolution lamellae in perthite. Dark areas in |
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