 | | Journal (article/letter/editorial) | | Agostinho Neto, Av. 4 de Fevereiro 7, 815 Luanda, Angola Earth and Ocean Sciences, School of Natural Sciences...carbonatites represent hypabyssal carbonatites and the Catanda carbonatites are volcanic in origin. In Tchivira...inferred vacancies also increase. Pyrochlores from Catanda display complex textures. They generally have a...exsolution in the volcanic carbonatites. K EY WORDS : Angola, carbonatite, zonation in pyrochlore, fluorine,...the Bonga carbonatites are subvolcanic and the Catanda carbonatites are effusive. using back-scattered |  | 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...Gonçalves, Antonio O., Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints... ACCEPTED MANUSCRIPT Carbonatitic lavas in Catanda (Kwanza Sul, Angola): mineralogical and geochemical constraints...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 |  | | Thesis/Dissertation | | Caracterización del vulcanismo carbonatítico de Catanda (Angola) Marc Campeny Crego ADVERTIMENT. La consulta... vulcanismo carbonatítico de Catanda (Angola) Tesis doctoral presentada... vulcanismo carbonatítico de Catanda (Angola) Tesis doctoral presentada...volcanes en Gran Canaria y en Catanda, y darle las gracias por su... estat possible realitzar-‐lo a Angola gràcies a l’esforç, la dedicació |  | 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...(Bonga [67,68,70]; Virulundo [71]) and extrusive (Catanda; [67,68,72]). The intrusions often constitute ring...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 |  | Klöcking, M., Hoggard, M.J., Rodríguez Tribaldos, V., Richards, F.D., Guimarães, A.R., Maclennan, J., White, N.J. (2020) A tale of two domes: Neogene to recent volcanism and dynamic uplift of northeast Brazil and southwest Africa. Earth and Planetary Science Letters, 547. 116464pp. doi:10.1016/j.epsl.2020.116464 | Journal (article/letter/editorial) | | contribution from metasomatised lithospheric mantle. In Angola, melting of metasomatised lithosphere is probably...100 km beneath Angola and could be as thin as 60 km in the Borborema Province. For Angola, thermobarometry...topographic domes in northeast Brazil (BP; Borborema Province) and southwest Africa (AD; Angolan dome). (b)...(Ma); grey lines = geological province boundaries; BP = Borborema Province; F = Fortaleza; FN = Fernando...southwest Africa. 2. Geological setting The Borborema Province of northeast Brazil is a Precambrian domain that |  | | 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...Huambo and Kwanza Sul provinces, is one of the least studied carbonatite complexes in Angola. As a few studies...Bonga [26–30], Virulundo [31], Bailundo [32], and Catanda [33]. Therefore, an accurate examination of Monte |  | Ernst, Richard E., Pereira, Eurico, Hamilton, Michael A., Pisarevsky, Sergei A., Rodriques, José, Tassinari, Colombo C.G., Teixeira, Wilson, Van-Dunem, Vitória (2013) Mesoproterozoic intraplate magmatic ‘barcode’ record of the Angola portion of the Congo Craton: Newly dated magmatic events at 1505 and 1110Ma and implications for Nuna (Columbia) supercontinent reconstructions. Precambrian Research, 230. 103-118 doi:10.1016/j.precamres.2013.01.010 | Journal (article/letter/editorial) | | Mesoproterozoic intraplate magmatic ‘barcode’ record of the Angola portion of the Congo Craton: Newly dated magmatic... Brazil i Instituto Geológico de Angola, C.P. 1260, Luanda, Angola b a r t i c l e i n f o Article...c t In the Angola portion of the Congo Craton, the only Proterozoic large igneous province (LIP) dated...dolerite sill which is part of a wider sill province in SW Angola portion of the Congo Craton. The combined...gabbro-noritic (GN) dyke swarm in southeastern Angola, but this age is currently unknown in Siberia suggesting |  | Kosman, Charles W., Kopylova, Maya G., Stern, Richard A., Hagadorn, James W., Hurlbut, James F. (2016) Cretaceous mantle of the Congo craton: Evidence from mineral and fluid inclusions in Kasai alluvial diamonds. Lithos, 265. 42-56 doi:10.1016/j.lithos.2016.07.004 | Journal (article/letter/editorial) | | Cretaceous kimberlites of the Lucapa graben in Angola. Analysis of 40 inclusion-bearing diamonds provides...We 5°S Be lt (K IB) Mbuji-Mayi K ib a Belt Angola Block 10°S Mesoproterozoic fold belts Neoproterozoic...Orogeny) Paleoproterozoic fold belts Poorly known province of Paleo-Mesoproterozoic crust reworked during...of discontinuous faults in southwest and central Angola (de Boorder, 1982). In addition to kimberlites...appear to be more concentrated in southwestern Angola off cratonic margins, whereas kimberlites tend |  | 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...Geological setting Most of the carbonatite complexes in Angola are found in the Lucapa structure (deVries Lapido-Loureiro...1200 km set of faults oriented NE–SW that cut the Angola–Congo craton (Issa Filho et al., 1991). Different |  | | Journal (article/letter/editorial) | | (Chen et al., 2013); (iii) carbonatitic lavas in Catanda (Campeny et al., 2015); and (iv) calciocarbonatite... MA kimberlite field in the Yakutian diamond province (Siberian craton). The pipe has a composite structure...in the southern part of the Yakutian kimberlite province‖. They postulated also the presence of shortite...from many kimberlites in the southern Yakutian province are debatable. The first question is whether any...Gonçalves, A.O., 2015. Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints |  | | Journal (article/letter/editorial) | | (see below), and carbonatites in the East Sayan province, especially the Nizhnesayanskii and Bolshyetaginskoye...(Kogarko et al., 1995). Although the Kola Alkaline Province contains many carbonatites which have Nbpotential...Brazil Catalão-I Araxá Other Fen, Norway Bonga, Angola Mbeya, Tanzania 0.41 0.45 0.56 0.66 0.12 0.16...(Torró et al., 2012); Tchivira, Bonga, and Catanda, Angola (Bambi et al., 2012); Lesnaya Varaka, Russia...melilitite lavas of the Alto Paranaíba igneous province (Cordeiro et al., 2011; Gibson et al., 1995) |  | | Journal (article/letter/editorial) | | paper is the question (1) whether the observed zircon age distribution of continental crust (CC) is produced...growth but also a reproduction of the observed zircon-age maxima referring to the instants of time. Admittedly...which are not or scarcely visible in the observed zircon ages. Sinusoidal parts of the evolution curve of...partial melting of thickened lower crust. In-situ zircon LA-ICP-MS U-Pb dating reveals that they were emplaced...Heavy Metals in Black Soil Region of Central Jilin Province D.Y.WANG*, Y.F.LI, Y. Y.YANG AND X.L.YANG Jilin |  | | Journal (article/letter/editorial) | | synchroneity of the Central Atlantic magmatic province (CAMP; c. 201 Ma) and the Deccan Traps (c. 66...dykes and sills of the Central Atlantic magmatic province (CAMP) were intruded between 202 and 195 Ma in...formation Sodium rich magmas parental to Catanda carbonatitic lavas (Angola): Melt inclusion evidence L.S.CAMPBELL1*...4 Dept. Geologia, Univ. Agostinho Neto, Luanda, Angola 1 Remains of highly eroded carbonatitic volcanic...50 km2 in the vicinity of the Catanda village, Kwanza Sul province, Angola. Carbonatitic lava flows and |  | | Book | | . . . . . . . . . . . . . . . . . . . . . . . Zircon and Dalyite . . . . . . . . . . . . . . . . . ...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...alkali feldspar, and aegirine (acmite). Notably, zircon, commonly regarded as a refractory phase, is often...being incorporated into aegirine. This implies that zircon, like quartz, reacts intensely with aggressive |  | | 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...Matukov, D., Sergeev, S., and Lucassen, F., 2008, Zircon geochronology and Sr, Nd, Pb isotope geochemistry |  | | Journal (volume) | | management of nuclear waste...........ix Kelly, N.M.: Zircon – more than just a chronometer...................under extreme conditions. Elements 5 talks x Zircon – more than just a chronometer Biomineral attractions:...Ludwig Maximilians-Universität, München, Germany Zircon (ZrSiO4) is a mineral of singular importance in...the conditions of its formation or alteration, zircon has become the foremost among our geochronometers...chemically and structurally through time. In addition, zircon is continually revealing how broad its capacity |  | | Book (edition) | | BT N460000N503000 W0735000W0850000 Superior Province Canadian Shield Blake River Group Ontario Quebec...Gastropoda Mollusca BT Invertebrata Aconcagua Province Central Chile. Also search cagua. BT Chile NT...Rocky Mountain Arsenal Wattenberg Field Adana Province in S Anatolia. Also a city. BT Turkey Middle East...Tombigbee River Tuscaloosa Formation Valley and Ridge Province Vicksburg Group Warsaw Formation Yazoo Clay Alabama...Shield SA Canadian SA SA SA BD. SA Churchill Province Clearwater River Cold Lake Icefield SA Columbia |  | | Book (edition) | | CO N460000N503000 W0735000W08 50000 BT Superior Province BT Canadian Shield SA Blake River Group SA Ontario...Invertebrata acid rainfall use acid rain Aconcagua Province Central Chile. Also search Acon¬ cagua. BT Chile...BA Wisconsin BA Midwest BA United States Adana Province in S Anatolia. Also a city. BT Turkey BT Middle...Tombigbee River Tuscaloosa Formation Valley and Ridge Province Vicksburg Group Warsaw Formation Yazoo Clay Alabama...Transyl¬ vania. BT Transylvania BT Romania Albacete Province in SE Spain. CO N380200N392700 W0005500W0025500 |
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