 | Broom-Fendley, Sam, Brady, Aoife E., Horstwood, Matthew S.A., Woolley, Alan R., Mtegha, James, Wall, Frances, Dawes, Will, Gunn, Gus (2017) Geology, geochemistry and geochronology of the Songwe Hill carbonatite, Malawi. Journal of African Earth Sciences, 134. 10-23 doi:10.1016/j.jafrearsci.2017.05.020 | Journal (article/letter/editorial) | | and geochronology of the Songwe Hill carbonatite, Malawi Article in Journal of African Earth Sciences ·...and geochronology of the Songwe Hill carbonatite, Malawi Sam Broom-Fendley a, *, Aoife E. Brady b, 1, Matthew...2017 Available online 2 June 2017 Songwe Hill, Malawi, is one of the least studied carbonatites but has...other carbonatite complexes at Chilwa Island and Tundulu in the Chilwa Alkaline Province and others worldwide...carbonatite complexes of the Chilwa Alkaline Province of Malawi have been extensively studied and documented, resulting |  | | Journal (article/letter/editorial) | | mineraiisation in carbonatites of the Tundulu complex, Malawi: Processes at the fluid/rock interface...December 14, 1993) Abstract-The Tundulu carbonatite complex in southeastern Malawi was intruded during the late...form the various ~uorocarbonates. As such, the Tundulu carbonatites provide a natural laboratory in which...in hydrothermal veins from the Tundulu carbonatite complex in Malawi. The veins are found in different...1966). The first ring structure was centred at Tundulu Hill (Fig. 1), and is represented by several types |  | Doroshkevich, A. G., Viladkar, S. G., Ripp, G. S., Burtseva, M. V. (2009) HYDROTHERMAL REE MINERALIZATION IN THE AMBA DONGAR CARBONATITE COMPLEX, GUJARAT, INDIA. The Canadian Mineralogist, 47 (5) 1105-1116 doi:10.3749/canmin.47.5.1105 | Journal (article/letter/editorial) | | MINERALIZATION IN THE AMBA DONGAR CARBONATITE COMPLEX, GUJARAT, INDIA Anna G. DOROSHKEVICH Geological...mineral association of quartz, florencite-(Ce), strontianite, barite and sparse bastnäsite – parisite – synchysite...primaires. L’association de quartz, florencite-(Ce), strontianite, barite et bastnäsite – parisite – synchysite...are known, including occurrences at Tundulu and Kangankunde, Malawi (Ngwenya 1994, Wall & Mariano 1996)...hydrothermally deposited phases. This carbonatite complex provides comparisons of primary sövite and the |  | Broom-Fendley, Sam, Wall, Frances, Spiro, Baruch, Ullmann, Clemens V. (2017) Deducing the source and composition of rare earth mineralising fluids in carbonatites: insights from isotopic (C, O, 87Sr/86Sr) data from Kangankunde, Malawi. Contributions to Mineralogy and Petrology, 172 (11) doi:10.1007/s00410-017-1412-7 | Journal (article/letter/editorial) | | isotopic (C, O, 87Sr/86Sr) data from Kangankunde, Malawi Sam Broom‑Fendley1 · Frances Wall1,2,3 · Baruch...compositions for the REE-rich Kangankunde carbonatite (Malawi), we show that the commonly observed, dark brown...REE2O3, comprise assemblages of monazite-(Ce), strontianite and baryte forming hexagonal pseudomorphs after...fluids. Carbon and oxygen isotope ratios of strontianite, representing the REE mineral assemblage, indicate...similar δ18O and 87Sr/86Sr to those of the main complex, indicating both are carbonatite-derived and, locally |  | Broom-Fendley, Sam, Brady, Aoife E., Wall, Frances, Gunn, Gus, Dawes, William (2017) REE minerals at the Songwe Hill carbonatite, Malawi: HREE-enrichment in late-stage apatite. Ore Geology Reviews, 81. 23-41 doi:10.1016/j.oregeorev.2016.10.019 | Journal (article/letter/editorial) | | REE minerals at the Songwe Hill carbonatite, Malawi: HREE-enrichment in late-stage apatite Sam Broom-Fendley...(L)REE mineral assemblage of synchysite-(Ce), strontianite and baryte. Finally, late-stage Ap-4 is associated...carbonatite-related HREE enrichment are known (e.g. Kangankunde, Malawi; Khibiny, Russia; Deadhorse Creek, Canada; Huanglongpu...REE-bearing minerals at the Songwe Hill carbonatite, Malawi, were investigated with the objective of understanding...enrichment occurs in late-stage apatite at the Tundulu, Kangankunde and Juquiá carbonatites (Ngwenya, |  | | Corporate Document | | Republic of Malawi Ministry of Mining Final Report of the Project for Establishment of Integrated Geographic...Development Co., Ltd. dummy Frontispiece 1 Map of Malawi Former capital: Zomba Headquarters of Geological...Lake Chilwa located in the southeastern part of Malawi and Chisi Island: Chisi Island is composed of syenite...Lake Malawi Upper right: Syenite distributed in Chilwa Alkaline Province in the south of Malawi (Cretaceous...(Cretaceous, Mesozoic) Lower right: Gneiss of Basement Complex (Proterozoic) Contents 1. Outline of the Project |  | Doroshkevich, A. G., Ripp, G. S., Viladkar, S. G., Vladykin, N. V. (2008) THE ARSHAN REE CARBONATITES, SOUTHWESTERN TRANSBAIKALIA, RUSSIA: MINERALOGY, PARAGENESIS AND EVOLUTION. The Canadian Mineralogist, 46 (4) 807-823 doi:10.3749/canmin.46.4.807 | Journal (article/letter/editorial) | | Abstract The Arshan carbonatites in the Transbaikalia region of Siberia consist of sövite with high concentrations...phlogopite, and the formation of secondary sulfates, strontianite, calcite and fluorite resulted from a hydrothermal...et la formation de sulfates secondaires, de strontianite, de calcite et de fluorite ont résulté d’une...the magmatic stage. Parisite, allanite-(Ce), strontianite, thorite, thorianite, REE-rich epidote, calcite...Mountain Pass, USA (Olson et al. 1954), Kangankunde, Malawi (Wall & Mariano 1996), and Yuzhnoe, Russia (Ripp |  | Chikanda, Frances, Otake, Tsubasa, Ohtomo, Yoko, Ito, Akane, Yokoyama, Takaomi D., Sato, Tsutomu (2019) Magmatic-Hydrothermal Processes Associated with Rare Earth Element Enrichment in the Kangankunde Carbonatite Complex, Malawi. Minerals, 9 (7) 442 doi:10.3390/min9070442 | Journal (article/letter/editorial) | | Enrichment in the Kangankunde Carbonatite Complex, Malawi Frances Chikanda 1, * , Tsubasa Otake 2 , Yoko...REE resource in the Chilwa Alkaline Province in Malawi, clarifies the critical stages of REE mineralization...Qinling belts, China [7]; Kangankunde, Tundulu, and Songwe, Malawi [8,9]). Processes that govern the enrichment...India [13], Bear Lodge in the USA [14], and Tundulu in Malawi [9]. This contribution focuses on the evolution...(LREE) deposit in the Chilwa Alkaline province, Malawi. Previous work carried out on the Kangankunde carbonatite |  | | Journal (article/letter/editorial) | | the principal primary REE mineral. Within each complex the C – O and Sr – Nd isotopic data are similar...mineralization and its host carbonatites in each complex are derived from the same source and are co-genetic...1954), Fen (Norway) (Andersen, 1986), Tundulu and Kangankunde (Malawi) (Ngwenya, 1994; Wall and Mariano,...Khibina is the largest (about 1327 km2) intrusive complex of agpaitic (peralkaline) nepheline syenites and...elliptical in shape and concentrically zoned. The complex contains a wide variety of magmatic and metasomatic |  | Prokopyev, Ilya, Kozlov, Evgeniy, Fomina, Ekaterina, Doroshkevich, Anna, Dyomkin, Maxim (2020) Mineralogy and Fluid Regime of Formation of the REE-Late-Stage Hydrothermal Mineralization of Petyayan-Vara Carbonatites (Vuoriyarvi, Kola Region, NW Russia) Minerals, 10 (5) 405 doi:10.3390/min10050405 | Journal (article/letter/editorial) | | of Petyayan-Vara Carbonatites (Vuoriyarvi, Kola Region, NW Russia) Ilya Prokopyev 1,2, *, Evgeniy Kozlov...Abstract: The Vuoriyarvi Devonian alkaline–ultramafic complex (northwest Russia) contains magnesiocarbonatites...ancylite-dominant magnesiocarbonatites with ancylite–baryte–strontianite–calcite–quartz (±late Ca–Fe–Mg carbonates) ore...mineralization of the Vuoriyarvi alkaline–ultramafic complex. Keywords: magnesiocarbonatites; REE; ancylite;...major focus of critical metal research. The Kola region in NW Russia is host to some of the largest REE |  | Smith, M., Kynicky, J., Xu, Cheng, Song, Wenlei, Spratt, J., Jeffries, T., Brtnicky, M., Kopriva, A., Cangelosi, D. (2018) The origin of secondary heavy rare earth element enrichment in carbonatites: Constraints from the evolution of the Huanglongpu district, China. Lithos, 308. 65-82 doi:10.1016/j.lithos.2018.02.027 | Journal (article/letter/editorial) | | Yuantao. the variation in the stability of aqueous complex ions with different ligands (Haas et al., 1995;...associated with late stage hydrothermal phenomena (e.g. Tundulu - Ngwenya, 1993; Songwe - Swinden and Hall, 2012;...with the Cenozoic rift basin in the north. The southern border of the South Qinling is separated from...framework and tectonic evolution of the Qinling region have been described by Xue et al. (1996), Meng...uraninite, REE fluorides, burbankite, celestine, strontianite and brannerite. Minor fluorite is found at Shijiawan |  | | Journal (article/letter/editorial) | | applied to a complex of related carbonate and silicate rocks in a magmatic or extrusive complex. Primary...calcite carbonatite such as are found at the Fen complex. In fact, the genetic questions highlighted by...centimeter-to-decimeter scale. For example, at the Fen complex (Brøgger 1921, Andersen 1988), there is a spectrum...limit permits the recognition in the Jacupiranga complex of Brazil, of a carbonatite suite made up of perovskite...carbonatite complexes. Thus, a given carbonatite complex can be considered as a package of rocks that are |  | 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) | | Devonian carbonatite–ijolite–pyroxenite–olivinite complex comprises several carbonatite fields: Neske Vara...ancylite and baryte and, to a lesser extent, strontianite, bastnäsite, and synchysite. Varieties of carbonatite...quartz-bastnäsite matrixes were formed. Simultaneously, strontianite, quartz, calcite, monazite, HREE-rich thorite...[12–17], China India [39–42], Italy have [43,44], Malawi [45–51], on the subjectNamibia of rare earth carbonatites...[18–37], Finland [38], India [39–42], Italy [43,44], Malawi [45–51], Tanzania [67], the USA [68–72], and Vietnam |  | Marks, Michael A. W., Neukirchen, Florian, Vennemann, Torsten, Markl, Gregor (2009) Textural, chemical, and isotopic effects of late-magmatic carbonatitic fluids in the carbonatite–syenite Tamazeght complex, High Atlas Mountains, Morocco. Mineralogy and Petrology, 97 (1) 23-42 doi:10.1007/s00710-009-0075-0 | Journal (article/letter/editorial) | | carbonatitic fluids in the carbonatite–syenite Tamazeght complex, High Atlas Mountains, Morocco Michael A. W. Marks...Abstract Carbonatites of the Eocene Tamazeght complex, High Atlas Mountains, Morocco, consist of calciocarbonatites...hydrothermal precipitation of REE-carbonates, strontianite, barite and other phases (Zaitsev et al. 1998;...presented on the carbonatites of the Tamazeght complex, Morocco, in order to investigate their susceptibility...Tamazeght carbonatite-alkaline complex is a multiphase intrusive complex situated on the northern margin |  | | Journal (article/letter/editorial) | | crust a b s t r a c t The Bear Lodge alkaline complex in northeastern Wyoming (USA) is host to potentially...mineralization has been known at the Bear Lodge alkaline complex (BLAC) in northeastern Wyoming, USA since 1949...distribution and nature of REE minerals in the complex and their relation to grade and other economic...are shown in Fig. 1. 2.4. Bear Lodge alkaline complex Fig. 1. Generalized location map showing select...Alberta; (4) Leucite Hills; (5) Colville igneous complex; (6) Absaroka volcanic province. Provinces not |  | | Journal (article/letter/editorial) | | meteoric alterations of the Lueshe carbonatite complex žDemocratic Republic of Congo / identified by a...and whole-rock samples of the Lueshe carbonatite complex ŽNE of Democratic Republic of Congo.. The fresh...solution ŽHF q HNO 3 .. The Lueshe carbonatite complex contains a suite of REE-carriers identified as...quantities of Fig. 1. Geological map of the Lueshe complex Žmodified after Maravic et al., 1989.. The studied...lateritic profiles developed on the Lueshe alkaline complex, are described and discussed in detail using a |  | Ruberti, E., Enrich, G. E.R., Gomes, C. B., Comin-Chiaramonti, P. (2008) HYDROTHERMAL REE FLUOROCARBONATE MINERALIZATION AT BARRA DO ITAPIRAPUA, A MULTIPLE STOCKWORK CARBONATITE, SOUTHERN BRAZIL. The Canadian Mineralogist, 46 (4) 901-914 doi:10.3749/canmin.46.4.901 | Journal (article/letter/editorial) | | ITAPIRAPUÃ, A MULTIPLE STOCKWORK CARBONATITE, SOUTHERN BRAZIL Excelso RUBERTI§, Gaston E.R. ENRICH and...The Barra do Itapirapuã (BIT) carbonatites in southern Brazil belong to the final stages of the Early...magmatism of the Ponta Grossa Arch Province. The BIT complex is a dyke and vein stockwork in which four main...elements during fluid–rock interaction. The BIT complex is considered to be of potential economic interest...Recently, the Barra do Itapirapuã (BIT) carbonatite complex was recognized as an important potential source |  | | Journal (article/letter/editorial) | | the Magnet Cove complex in the U.S. [20,21], carbonatites of the Salpeterkop complex in South Africa...Africa [22], and the Gross Brukkaros complex in Namibia [23]. Nb-rich polymorphs of TiO2 play a key role in...Morro dos Seis Lagos. However, laterites in this complex formed after ferro-(siderite)carbonatites that...occurred due to the site’s location in the sub-Arctic region [30]. These “preserved” sites help to identify...alkaline-ultrabasic carbonatite complex, southwest of the Murmansk region, Northwest Russia. The Vuoriyarvi |  | Downes, Peter J., Demény, Attila, Czuppon, György, Jaques, A. Lynton, Verrall, Michael, Sweetapple, Marcus, Adams, David, McNaughton, Neal J., Gwalani, Lalchand G., Griffin, Brendan J. (2014) Stable H–C–O isotope and trace element geochemistry of the Cummins Range Carbonatite Complex, Kimberley region, Western Australia: implications for hydrothermal REE mineralization, carbonatite evolution and mantle source regions. Mineralium Deposita, 49 (8) 905-932 doi:10.1007/s00126-014-0552-1 | Journal (article/letter/editorial) | | geochemistry of the Cummins Range Carbonatite Complex, Kimberley region, Western Australia: implications for hydrothermal...Neoproterozoic Cummins Range Carbonatite Complex (CRCC) is situated in the southern Halls Creek Orogen adjacent to...Neoproterozoic Cummins Range Carbonatite Complex (CRCC) is situated at the southern apex of the Halls Creek Orogen...Milligan 2004). The Cummins Range Carbonatite Complex has been interpreted by a number of workers to...the Eastern zone of the Paleoproterozoic Lamboo Complex within the Halls Creek Orogen (Fig. 2; Andrew 1990; |  | Cooper, Alan F., Collins, Alice K., Palin, J. Michael, Spratt, John (2015) Mineralogical evolution and REE mobility during crystallisation of ancylite-bearing ferrocarbonatite, Haast River, New Zealand. Lithos, 216. 324-337 doi:10.1016/j.lithos.2015.01.005 | Journal (article/letter/editorial) | | textures and carbonate geothermometry, have a complex history of recrystallisation from late stage, low...seismically to underlie the Haast River area. A plutonic complex at depth is further suggested by the presence of...ankerite, siderite, norsethite, daqinshanite, strontianite, a Sr–Ca phase, a burbankite-like Ba–REE–Na...ancylite-bearing carbonatite (OU 81155), and explores the complex sequence of magmatic and carbo-hydrothermal processes...north-draining tributary of Haast River in the Southern Alps of South Westland (Fig. 1). The creek drains |  | | Journal (article/letter/editorial) | | Mount Weld and Gifford Creek ferrocarbonatite complex in Western Australia, the controversial Bayan Obo...events. The causes and mechanisms of rifting are complex and are beyond the scope of this contribution,...for many of the non-carbonatitic complexes of southern Africa (Woolley, 2001; Woolley and Kjarsgaard...Goudini), Western Australia (Mount Weld and Gifford complex) and China (Bayan Obo and the carbonatites of the...Fig. 2. 2.1. Brandberg The Brandberg alkaline complex (Hodgson, 1973; Diehl, 1989, 1990; Bowden et al |  | | Book | | VULCANICITY AND CONTINENTAL EVOLUTION IN THE BARBERTON REGION, TRANSVAAL 27 M. J. Viljoen and R. P. Viljoen...TRIAD 73 H. C. M. Whiteside THe ANORTHOSITE OF SOUTHERN ANGOLA: A REVIEW OF PRESENT DaTA 89 E. S. W...PEGMATITES FROM OROGENIC BELTS OF EQUATORIAL AND SOUTHERN AFRICA 157 O. Von Knorring LATE PALAEOZOIC TO...PETROCHEMICAL AND TECTONIC RELATIONSHIP OF THE MALAWI CARBONATITEALKALINE PROVINCE AND THE LUPATA-LEBOMBO...Schists. Their initial attempt to interpret the complex structures of the Morar anticline was followed |  | | Report (issue) | | third order administrative area, basin/formation/region(area)/deposit, and deposit/site name. Guano and...third order administrative area, basin/formation/region(area)/ deposit, deposit/site name, deposit type...information in the next two fields, .Basin/Fmt/Region (area)/Deposit and Deposit/Site_Name, is meant...Age, Host/Associated Lithology, Host Formation/Complex, Minerals, and Geologic Comments/Deposit Description...Yacimientos no metaliferos y rocas de aplicacion de la region Patagonia-Comahue: Argentina Ministerio de Economia |  | | Book | | Kresten Valentin R. Troll The Alnö Carbonatite Complex, Central Sweden GeoGuide Series editors Wolfgang...the geological and environmental context of the region followed by in depth and colourful descriptions...Kresten Valentin R. Troll • The Alnö Carbonatite Complex, Central Sweden 123 Peter Kresten Section for...this respect, the late Proterozoic Alnö igneous complex in central Sweden is one of the most classical...research on the Alnö carbonatite and alkaline igneous complex since the very first descriptions by Högbom in 1895 |  | | Book | | "Broadly regarded, the depth ta which a metalliferous region has been eroded affects its present characteristics...colour index. This is, without doubt, the most complex lithologie association to be handled from the point...or in the mine workings at all. The Climax Mo complex is the best known example. Here three generations...150-200 km and are up to 15 km thick. The entire complex is composed of over 800 mappable plutons and small...occurrence, and the great Butte ore field in the southern part of the batholith. In contrast to the Peruvian |
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