 | | 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 |  | 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) | | mg-rieb Magnesio-rebeckite; mg-arf magnesio-arfvedsonite Fig. 3. Central part of (Na þ K)–Fe–Mg triangular...along trends A and B that converge on magnesio-arfvedsonite B242 and 243 amphiboles and B245 extending...the zoned compositions converge to magnesio-arfvedsonite, similar to those as also found for the fenitic...Ontario (Platt and Woolley, 1990), magnesio-arfvedsonite is again the ultimate composition but with decreasing...and seen in carbonatites elsewhere e.g. at Bailundo, Angola, Chilwa, Malawi, and Chishanya, Zimbabwe (Woolley |  | | 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...(ac) and Alnö (acl) in Sweden; the Kola alkaline province (acl) in Russia; Sokli (cl) and Iivara (a) in...various alkali amphiboles such as richterite and arfvedsonite, alkali feldspar, and aegirine (acmite). Notably...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... and Maguire, P.K.H., eds., The Afar Volcanic Province within the East African Rift System: Geological |
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