 | | Journal (article/letter/editorial) | | REE Distribution in the Monte Verde Carbonatite–Alkaline–Agpaitic Complex (Angola) Sandra Amores-Casals...Universidade Agostinho Neto, Luanda, Caixa Postal 815, Angola; tonygoncalves72@hotmail.com Institut de Ciències... Abstract: The Angolan alkaline–carbonatite complex of Monte Verde has a semi-circular shape and is...arranged minor bodies of other alkaline rocks and carbonatite magmatic breccias. This rock association is hosted...are concentrated in pyrochlore crystals in the carbonatite and alkaline breccias. Magmatic fluornatropyrochlore |  | 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) | | minerals Article Lamprophyre-Carbonatite Magma Mingling and Subsolidus Processes as Key Controls on...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...of a central carbonatite plug (with a ferrocarbonatite core) surrounded by carbonatite cone sheets and...F-rich pyrochlore is disseminated throughout the carbonatite plug and in some concentric dykes. Crystal accumulation |  | | Journal (article/letter/editorial) | | complexes. The results show that besides the ‘carbonatite box’ of TAYLORet ab. (1967) there exist higher...feldspath Carbonatite 8. apatite et phlogopite Carbonatite 8. apatite et magnetite Carbonatite a apatite...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... -56 & 0,05 P 92 P 93 P 94 Carbonatite brune Carbonatite a magnetite Sovite a pyroxene et apatite...apatite Sovite a magnetite et apatite Coola Angola Monte-Verde 14,l + 0,05 - 2,2 & 0,2 5,5 f 091 - 7 |  | | Journal (article/letter/editorial) | | Agostinho Neto, Av. 4 de Fevereiro 7, 815 Luanda, Angola Earth and Ocean Sciences, School of Natural Sciences...the volcanic carbonatites. K EY WORDS : Angola, carbonatite, zonation in pyrochlore, fluorine, high field...mineralization is associated with the early stages of carbonatite activity and carbonatites are commonly rich in...or enrichment in Nb is a good criterion for carbonatite identification. Niobium is usually concentrated...concentrated in intermediate pulses of carbonatite activity (Kapustin, 1980). Pyrochlore-group mineral concentrates |  | | Report (volume) | | Africa showing the location of fluorspar and carbonatite deposits, rifts, and other major faults-----------------------...reserves -----------------------------------Carbonatite localities of Africa --------------------------------...Fluoritebearing carbonatites are reported from Angola, Kenya, Morocco, Mozambique, Namibia, South Africa...Africa, in Namibia (South West Africa), and in Angola and is associated with major fault zones in the...with alkaline intrusive rocks are reported from Angola, Kenya, Malawi, Morocco, Mozambique, Namibia, South |  | Kozlov, Evgeniy, Fomina, Ekaterina, Sidorov, Mikhail, Shilovskikh, Vladimir, Bocharov, Vladimir, Chernyavsky, Alexey, Huber, Miłosz (2020) The Petyayan-Vara Carbonatite-Hosted Rare Earth Deposit (Vuoriyarvi, NW Russia): Mineralogy and Geochemistry. Minerals, 10 (1) 73 doi:10.3390/min10010073 | Journal (article/letter/editorial) | | minerals Article The Petyayan-Vara Carbonatite-Hosted Rare Earth Deposit (Vuoriyarvi, NW Russia): Mineralogy...Vuoriyarvi Devonian carbonatite–ijolite–pyroxenite–olivinite complex comprises several carbonatite fields: Neske...strontianite, bastnäsite, and synchysite. Varieties of carbonatite that contain the highest concentrations of REE...bastnäsite; metasomatism; Vuoriyarvi; Kola alkaline province 1. Introduction Rare-earth elements (REEs) are...earth carbonatites (RETherefore, carbonatites) in Angola [5,6], Australia for more 50% of the global resources |  | | Report (issue) | | western side. Courtesy Philippe Nonnotte. (Bottom) Carbonatite lava at Oldoinyo Lengai volcano, northern Tanzania...Bailey and S. Kearns 12. Post-Paleozoic magmatism in Angola and Namibia: A review . . . . . . . . . . . . ...infiltration: A case study of Sal mantle xenoliths, Cape Verde Archipelago . . . . . . . . . . . . . . . . . ....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; |  | Doucelance, Régis, Escrig, Stéphane, Moreira, Manuel, Gariépy, Clément, Kurz, Mark D. (2003) Pb-Sr-He isotope and trace element geochemistry of the Cape Verde Archipelago. Geochimica et Cosmochimica Acta, 67 (19) 3717-3733 doi:10.1016/s0016-7037(03)00161-3 | Journal (article/letter/editorial) | | isotope and trace element geochemistry of the Cape Verde Archipelago RÉGIS DOUCELANCE,1,2,* STÉPHANE ESCRIG...have been determined for basalts from the Cape Verde archipelago (Central Atlantic). Isotopic and chemical...isotopically distinct components in the source of the Cape Verde basalts: (1) recycled ⬃1.6-Ga oceanic crust (high...delamination and subsequent incorporation into the Cape Verde plume, or may be remnant from delamination just...The first detailed geochemical study of the Cape Verde was that of Gerlach et al. (1988) who determined |  | Safiulina, Alfiya M., Lizunov, Alexey V., Semenov, Aleksandr A., Baulin, Dmitriy V., Baulin, Vladimir E., Tsivadze, Aslan Yu., Aksenov, Sergey M., Tananaev, Ivan G. (2022) Recovery of Uranium, Thorium, and Other Rare Metals from Eudialyte Concentrate by a Binary Extractant Based on 1,5-bis[2-(hydroxyethoxyphosphoryl)-4-ethylphenoxy]-3-oxapentane and Methyl Trioctylammonium Nitrate. Minerals, 12 (11) 1469 doi:10.3390/min12111469 | Journal (article/letter/editorial) | | REE Distribution in the Monte Verde Carbonatite– Alkaline–Agpaitic Complex (Angola). Minerals 2019, 10, |  | Litherland, M., Annells, R. N., Appleton, J. D., Berrangé, J. P., Bloomfield, K., Burton, C. C. J., Darbyshire, D. P. F., Fletcher, C. J. N., Hawkins, M. P., Klinck, B. A., Llanos, A., Mitchell, W. I., O'Connor, E. A., Pitfield, P. E. J., Power, G., Webb, B. C. (1986) The geology and mineral resources of the Bolivian Precambrian shield. Overseas Memoir 9. British Geological Survey | Report (volume) | | boom'. He penetrated the 'poisoned hell' of the Rio Verde in exploring Serranfa Haunchaca, describing the...peneplain. Of its two n1ajor river systems, the Rio Verde exics via a series of cataracts, whilst the Paucerna...Guapore Craton (Almeida, 1964) or the Tapaj6s Province of the Amazonic Craton (Almeida and others, 1981...and can thus by regarded as part of the Tapaj6s Province, believed to have consolidated during the Trans-Amazonian...metapsamm1tes. Apart from the stream section near Medio Monte (2) , perhaps the largest calc-silicate outcrop |  | | Report (issue) | | Atomic Energy Agency: AFGHANISTAN ALBANIA ALGERIA ANGOLA ANTIGUA AND BARBUDA ARGENTINA ARMENIA AUSTRALIA...Greenland; Poços de Caldas, Brazil); Class 1.2.3. Carbonatite (Phalabora, South Africa; Catalão, Brazil). ...Wash type, USA). Subtype 9.3. Roll-front (Wyoming Province, USA; Chu-Sarysu Basin, Kazakhstan): Class 9.3...pegmatite, monzonite, peralkaline syenite and carbonatite). Two main subtypes are recognized: (i) intrusive...Kvanefjeld deposit (Greenland) and the Phalabora carbonatite complex (South Africa). Subtype 1.1: Anatectic |  | | 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...Ga) sandstone basins in the Churchill structural province of North America. The Athabasca basin lies in |  | | Report (issue) | | epochs and provinces of Bolivia; Part 1, The tin province; Part 2, The metallogenic provinces of the Altiplano:...characterization of the eruptives in the subvolcanic province of the Bolivian tin belt: comparative aspects... A.H., and Farrar, E., 1973, The Bolivian tin province: notes on the available geochronological data:...occurrence of creedite at Colquiri, Inquisivi Province, Department of La Paz, Bolivia: Mineralogical...and Fletcher, C.J.N., 1979, A Mesozoic alkaline province in eastern Bolivia: Geology, v. 7, p. 545-548 |  | | Book (edition) | | shown by the popularity of places such as Mesa Verde National Park, television program- OS 18 CHAPTER...the north, toward St. Catherines Island, lay the province of Guale. Although a dozen sixteenth- and seventeenthcentury...NASA UTAH | COLORADO | ARCHAEOLOGY @ ohMesa Verde used at Chaco in the 1980s was Fe thermal infrared...ash. Fortuitously, the ash was a kind called carbonatite, which quickly solid- would force that liquid...8-1 Looking down into an unroofed kiva at Mesa Verde National Park; note the square opening for the ventilation |  | | Book | | airmass creates rainfall on the windward/ sea¬ Monte, Patagonian (South America) Continentality ward...of central Australia, as the Basin and Range province of the southwest US A and the higher rainfall...particular depression in the Basin 138 and Range province of the USA, is in the type region for what has...detail toward the end of this chapter. The Eastern Province of Saudi Figure 3.15. Sabkhas of Saudi Arabia...lowermost inland and coastal sabkhas in the Eastern Province on Saudi a few kilometres across where brines |  | | Book | | the Canadian Rockies is part: of the huge Hearne Province, which includes part of the Canadian Shield. We...Rockies 51 from the Wyoming Province, which borders the Hearne Province on the south and may underlie...Thelon-Wopmay accreted terranes area of the Rae Province and Slave Province, dating to 1.8—2.0 billion. Lying on...pretty solid evidence for human occupation in Monte Verde, Chile, a thousand years before Clovis times...is lawfully yours. You may take it out of the province without doing any paperwork. You may sell it, |  | | Report (issue) | | was evaluated with reference to the Caledonian province of Scotland, using the NERC I 2 S image-analysis...which are particularly relevant to the Caledonian province, are being used in a new EEC/DTI-funded programme...Loqgh N eagh Clay deposits in several areas of the Province. One borehole, the Green\lille No. 1, located...sand and gravel aquifers in other areas of the Province has con tinued to meet various local water den1ands...basalt lavas which underlie almost a third of the Province. ,..fhcsc deposits tend to be relatively coarser |  | | Book (volume) | | Panda Hill (8) Танзания North Ruri (7) Кения Monte Verde (6) Ангола Bailundo (7) Ангола Tehivila Bonga...0.123 0.069 0.313 0.027 Description carbonatite Aegn carbonatite Calc olivinite Pyrx peridotite ijolite |
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