 | Broom-Fendley, Sam, Styles, Mike T., Appleton, J. Don, Gunn, Gus, Wall, Frances (2016) Evidence for dissolution-reprecipitation of apatite and preferential LREE mobility in carbonatite-derived late-stage hydrothermal processes. American Mineralogist, 101 (3) 596-611 doi:10.2138/am-2016-5502ccby | Journal (article/letter/editorial) | | Abstract The Tundulu and Kangankunde carbonatite complexes in the Chilwa Alkaline Province, Malawi, contain...enrichment. In contrast to the previous work at Tundulu, we recognize three separate stages of apatite...becoming residually enriched in the HREE. Although at Tundulu the LREE-bearing products are re-precipitated relatively...rare earth elements, Chilwa Alkaline Province, Tundulu, Kangankunde, REE mobility, dissolution-reprecipitation...described in carbonatite complexes at Tundulu, Kangankunde, and Songwe, Malawi; Sukulu, Uganda; and JuquiĂĄ, Brazil |  | 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 |  | Elliott, H.A.L., Wall, F., Chakhmouradian, A.R., Siegfried, P.R., Dahlgren, S., Weatherley, S., Finch, A.A., Marks, M.A.W., Dowman, E., Deady, E. (2018) Fenites associated with carbonatite complexes: A review. Ore Geology Reviews, 93. 38-59 doi:10.1016/j.oregeorev.2017.12.003 | Journal (article/letter/editorial) | | have been identified between the presence of more complex veining textures, mineralogy and brecciation in...1989) including 148 calcite, dolomite, ankerite, siderite and magnesite (Woolley and Kempe, 1989). The ...produced from 164 parent alkaline magmas via a complex combination of liquid immiscibility and/or 165...of hydrothermal 181 fluids in and around the complex. With very few exceptions (e.g. Arzamastsev et...(1921) in his 186 memoir on the Fen carbonatite complex, Norway. Since the initial studies of the 187 |  | | 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 (BrĂžgger 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 |  | 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 alkalineâultramafic complex (northwest Russia) contains magnesiocarbonatites...mineralization of the Vuoriyarvi alkalineâultramafic 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...deposits in the region are 22.4 and 36.2 million tonnes, respectively [6]. This puts the Kola region on par with |  | | Journal (article/letter/editorial) | | the principal primary REE mineral. Within each complex the C â O and Sr â 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 |  | 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...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 JuquiĂĄ carbonatites (Ngwenya,...Songwe Hill carbonatite is located in south-eastern Malawi, near the Mozambique border, and is part of the |  | | Journal (article/letter/editorial) | | cooper@otago.ac.nz) Abstract NU Dolomite-ankerite-siderite ferrocarbonatite dykes of the Alpine Dyke swarm...recrystallized during oxidation, highlighting the complex emplacement history 1 ACCEPTED MANUSCRIPT involving...rocks within the complex (e.g. Morogan and CE Woolley, 1988). At the Callendar Bay complex in Ontario, Canada...of the dyke swarm, above an inferred plutonic complex/magma chamber at depth, the top of which has CE...clusters and lenses of a deeper brown weathering siderite are orientated PT parallel to the dyke margins |  | Andrade, F.R.D, Möller, P, LĂŒders, V, Dulski, P, Gilg, H.A (1999) Hydrothermal rare earth elements mineralization in the Barra do ItapirapuĂŁ carbonatite, southern Brazil: behaviour of selected trace elements and stable isotopes (C, O) Chemical Geology, 155 (1) 91-113 doi:10.1016/s0009-2541(98)00143-0 | Journal (article/letter/editorial) | | mineralization in the Barra do ItapirapuaË carbonatite, southern Brazil: behaviour of selected trace elements and...Barra do ItapirapuaË carbonatite is located in southern Brazil and belongs to the Cretaceous Ponta Grossa...opening of the South Atlantic. The carbonatite complex is emplaced in Proterozoic granites and is mainly...Karonge, Angola Ćœvan Wambeke, 1977. and Tundulu and Kangankunde, Malawi ĆœNgwenya, 1994; Wall and Mariano, 1996...focuses on the Barra do ItapirapuaË carbonatite, southern Brazil ĆœFig. 1., particularly on the geochemical |  | 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...assemblages, with calcite, dolomite, ankerite, siderite, norsethite, daqinshanite, strontianite, a SrâCa...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 |  | Cheng, Zhiguo, Zhang, Zhaochong, Aibai, Abulimiti, Kong, Weiliang, Holtz, Francois (2018) The role of magmatic and post-magmatic hydrothermal processes on rare-earth element mineralization: A study of the Bachu carbonatites from the Tarim Large Igneous Province, NW China. Lithos, 314. 71-87 doi:10.1016/j.lithos.2018.05.023 | Journal (article/letter/editorial) | | deposit located in the Xinjiang Uygur Autonomous Region, NW China (Fig. 1) hosts a measured total rare...Tectonically, it is located in the southern part of Xinjiang Uygur Autonomous Region, NW China, neighboring the...to the south. The Tarim Craton is composed of a complex Precambrian crystalline basement and a Phanerozoic...dykes (272 Ma; Li et al., 2007). The Wajilitage complex is situated in the western TLIP, with a length...siltstone. A notable feature of the Wajilitage complex is the diversity of alkaline MA igneous rocks |  | Graupner, Torsten, MĂŒhlbach, Caroline, Schwarz-Schampera, Ulrich, Henjes-Kunst, Friedhelm, Melcher, Frank, Terblanche, Hennie (2015) Mineralogy of high-field-strength elements (Y, Nb, REE) in the world-class Vergenoeg fluorite deposit, South Africa. Ore Geology Reviews, 64. 583-601 doi:10.1016/j.oregeorev.2014.02.012 | Journal (article/letter/editorial) | | The Vergenoeg ïŹuorite deposit in the Bushveld Complex in South Africa is hosted by a volcanic pipe-like...emplacement of other magmatic rock units of the Bushveld Complex (SmâNd isochron age for ïŹuorite separates: 2040...metallurgical-grade ïŹuorite (âmetsparâ) plugs and siderite lenses, and (ii) U-shaped patterns showing enrichment...fayalite-rich units. Common HFSE minerals are complex Nb-rich oxides (samarskite, fergusonite), REE phosphates...caroline.muecxhlbach@gmx.de (C. MĂŒhlbach). Igneous Complex (Vergenoeg Volcanogenic Province; Crocker, 1985) |  | | 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...Lagos. However, laterites in this complex formed after ferro-(siderite)carbonatites that were originally...occurred due to the siteâs location in the sub-Arctic region [30]. These âpreservedâ sites help to identify...alkaline-ultrabasic carbonatite complex, southwest of the Murmansk region, Northwest Russia. The Vuoriyarvi |  | | Journal (article/letter/editorial) | | of Hong Kong, Hong Kong Special Administrative Region State Key Laboratory for Mineral Deposits Research...Abstract The Yinachang deposit in the Kangdian region, Southwest China, contains large amounts of Fe...of Hong Kong, Hong Kong Special Administrative Region. Tel.: +852 2857 8251. E-mail address: mfzhou@hku...during later-stage metasomatic events to result in complex newly-formed mineral assemblages and chemical variations...xenotime-(Y), occur in this deposit, and show complex textural relationships. Thus, it is an ideal place |  | | 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 |  | | Book | | "Broadly regarded, the depth to which a metalliferous region has been eroded affects its present characteristics...colour index. This is, without doubt, the most complex lithologic 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 |  | | 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 âą 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 ïŹrst descriptions by Högbom in 1895 |  | | 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 |  | | Conference Proceedings (Volume) | | basalt-boninite basement of west Magnitogorsk Arc, the Southern Urals, Russia ..................................Allen Archean gold skarns in iron formation, Southern Cross greenstone belt, Yilgarn Craton, Western...Neoproterozoic rocks in the Lufilian belt, Domes region, Zambia .........................................Paleoproterozoic U-mineralization in the Archean PudasjĂ€rvi Complex, northern Fennoscandian Shield ..................characteristics of the Yonghwa phoscorite-carbonatite complex, Korea . . ................................... |  | | Book | | and Platinum in Basic Magmas . . 3.3.3 Bushveld Complex . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . 3.3.5 Sudbury Igneous Complex . . . . . . . . . . . . . . . . . . . . 3.4 Komatiite... . . . . . . . . . . . . . . 4.10 Metasomatic Siderite Deposits . . . . . . . . . . . . . . . . . . ...advantage is that a single keyword readily describes a complex system including the genetic model. Dill (2010)...In contrast, carbonates (malachite, azurite, siderite, cerussite, smithsonite, and magnesite) are easy |  | | Report (volume) | | northern part of the Chilwa alkaline province, Malawi 335 BOWDEN, P., BLACK, R., MARTIN, R. F., IKEI...EMELEUS, C. H. Mid-Proterozoic alkaline magmatism in southern Greenland: the Gardar province 449 LARSEN, L...classic alkaline provinces, such as East Africa, southern Greenland and the Kola Peninsula, are included...however. The Chilwa alkaline province in Malawi, at the southern end of the rift, is an essentially intrusive...lithospheric mantle is old and will have had as complex a metamorphic and magmatic history as the overlying |
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