 | 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) | | Earth Element Enrichment in the Kangankunde Carbonatite Complex, Malawi Frances Chikanda 1, * , Tsubasa...petrographic, and multi-isotope study on the Kangankunde carbonatite, the largest light REE resource in the...the Chilwa Alkaline Province in Malawi, clarifies the critical stages of REE mineralization in this deposit...deposit. The δ56 Fe values of most of the carbonatite lies within the magmatic field despite variations...Exsolution of a hydrothermal fluid from the carbonatite melts is evident based on the higher δ56 Fe of |  | | 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 |  | 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) | | from isotopic (C, O, 87Sr/86Sr) data from Kangankunde, Malawi Sam Broom‑Fendley1 · Frances Wall1,2,3 ·...element compositions for the REE-rich Kangankunde carbonatite (Malawi), we show that the commonly observed...observed, dark brown, Fe-rich carbonatite that hosts REE minerals in many carbonatites is decoupled from the...equilibrium between these assemblages and a carbonatite-derived, deuteric fluid between 250 and 400 °C...87Sr/86Sr to those of the main complex, indicating both are carbonatite-derived and, locally, REE mineralisation |  | | Journal (article/letter/editorial) | | focuses on the occurrence and mineralogy of carbonatite and granite pegmatite-related REE mineral occurrences...hydrothermal effects. Kzolov et al. [13] tracks carbonatite evolution from the magmatic to metasomatic stage...Chikanda et al. [14] investigate the Kangankunde Complex, in Malawi, making use of novel (δ56 Fe) as well...reserves of the REE as large as or larger than carbonatite-hosted deposits. However, the association of...hydrothermal alteration of eudialyte from the Illimaussaq complex, Greenland, resulting in the formation of HREE |  | | Journal (article/letter/editorial) | | Chilwa Island Carbonatite Complex, Malawi: Evidence for a Depleted Mantle Source Region, Liquid Immiscibility...the early Jurassic, Chilwa Island complex, located in southern Malawi, central Africa, suggest melt derivation...with meteoric groundwater during late-stage carbonatite activity. The initial .43 N d / i44 N d (0-51246-051269)...is proposed in which differentiation of the carbonatite magma was accompanied by fenitization (metasomatic...country rocks by carbonatite-derived fluids, and subsequent alteration of the carbonatite by hydrothermal |  | | Journal (article/letter/editorial) | | Fe-F-P-(Ba)-(Sr)-REE Central Asian Carbonatite Province (Southern Siberia and Mongolia): The Petrogenetic...Fe-F-P-(Ba)-(Sr)-REE Central Asian Carbonatite Province (Southern Siberia and Mongolia): The Petrogenetic...+7-913-387-8321 Abstract: The carbonatite complexes of the Central Asian carbonatite province comprise the Siberian...as well as those from the Mushugai-Khudag complex in Southern Mongolia. They are confined to Late Mesozoic...well as fractional crystallization. Alkaline–carbonatite rocks crystallized in the presence of brine–melts |  | | Journal (article/letter/editorial) | | Brazil beach sand, a low Th monazite from a Malawi carbonatite, and a xenotime from a pegmatite in northern...2008). Another feature can be the development of a complex compositional zonation, which is a common observation...compositionally homogenous (Table 1; Fig 1a), but displays complex, sector-like zoning under cathodoluminescence (Hetherington...dolomitic carbonatite in the Kangankunde carbonatite complex in the Chilwa Alkaline Province, southern Malawi...contrast, Ce2O3 is nearly constant. Crystals of the Malawi monazite were used in the experiments without crushing |  | 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...[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 |  | 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...mineralization of the Vuoriyarvi alkaline–ultramafic complex. Keywords: magnesiocarbonatites; REE; ancylite;...global rare earth oxide resources are hosted by carbonatite deposits, and bastnäsite, monazite, and xenotime...technologies [3,4]. Therefore, the study of REE–carbonatite complexes, namely, mineralogy and ore formation |  | | Journal (article/letter/editorial) | | element sulfide mineralization in the Coldwell Complex, Midcontinent Rift, Canada—David J. Good and Peter...the formation of early gabbros at the Coldwell Complex, Ontario, Canada— Yong-hua Cao, David J. Good,...oxide deposits associated with mafic-ultramafic-carbonatite complexes in the Kuluketage block, NW China—W...mineral systems in the Tethys-Himalayan zone of southern Tibet, China— Hua-Wen Cao, Hao Zou, Leon Bagas...Berezitovoe gold-polymetallic deposit, upper Amur region, Russia— A.S. Vakh, O.V. Avchenko, V.I. Gvozdev |  | | Journal (article/letter/editorial) | | 00/DOI: 10.2138/am.2007.2459 Gillespie’s Beach, southern Westland, South Island, New Zealand (Pabst and...ferroan dolomitic carbonatite located as part of the Kangankunde carbonatite complex in the Chilwa Alkaline...Alkaline Province, southern Malawi (Garson and Campbell-Smith 1965; Holt 1965; Garson 1966; Woolley 1991;...around 1.8 wt%. Such features are typical of carbonatite monazites (Wall and Mariano 1996). An unusual...Mean analysis value for natural monazite from southern Malawi used in the experiments, which averages over |  | | Journal (article/letter/editorial) | | mineralization in the Lisungwe Valley area, Kirk Range, southern Malawi J. Chisambi Department of Earth Sciences, Stellenbosch...Department of Mining Engineering, University of Malawi, the Polytechnic e-mail: jjchisambi@gmail.com B...the Kirk Range region which forms part of Southern Irumide mobile belt in southern Malawi. Regional scale...crustal shortening (tentatively associated with the Southern Irumide orogeny) which produced northeast – southwest...schist wall rock. Exploration in the Kirk Range region should focus on the northeast-southwest structures |  | | Journal (article/letter/editorial) | | The hydrothermal alteration of carbonatite in the Fen Complex, Norway: mineralogy, geochemistry...Abstract The Fen Complex in Norway consists of a c. 583 Ma composite carbonatite-ijolite-pyroxenite...found in hydrothermally altered, hematite-rich carbonatite called rødbergite. We studied the pro- Pr ep... gressive transformation of primary igneous carbonatite to rødbergite using SEM and ICP-MS trace element...fluorocarbonates and apatite breaking down in igneous carbonatite, and monazite-(Ce) precipitating in rødbergite |  | | Journal (article/letter/editorial) | | Analogues of these varieties are present in many carbonatite complexes. The aim of this study was to investigate...strength elements during the late stages of carbonatite formation. We conducted a multilateral study...the late hydro (carbo) thermal stage of the carbonatite formation and high migration capacity of Ti and...50 modal percent carbonate [1]. Varieties of carbonatite are named based on the dominant carbonate mineral...well. Most of the known carbonatite complexes have a common scheme of carbonatite genesis, whereby early |  | Wang, Zhen-Yu, Fan, Hong-Rui, Zhou, Lingli, Yang, Kui-Feng, She, Hai-Dong (2020) Carbonatite-Related REE Deposits: An Overview. Minerals, 10 (11) 965 doi:10.3390/min10110965 | Journal (article/letter/editorial) | | minerals Review Carbonatite-Related REE Deposits: An Overview Zhen-Yu Wang 1,2 , Hong-Rui Fan 1,2,3...elements (LREE)) deposits are closely related to carbonatite in China. Such a type of deposit may also contain...Nb, Th and Sc. According to the genesis, the carbonatite-related REE deposits can be divided into three...type and carbonatite weathering-crust type. This paper provides an overview of the carbonatite-related...primary magmatic type and hydrothermal type. The carbonatite-related endogenetic REE deposits are mainly distributed |  | | Book | | Bas's (1977) book intitled Carbonatite-Nephelinite volcanism; ii) the southern Africa Karoo magmatism which...African Continental Rifts ................. 3.1 Southern Africa .................................. 3.2........................................ 2.1 The Southern Field of Bufumbira .................. 2.2 The.......................................... 7.7 Carbonatite Groundmass .......................... Bulk Rock...Mafic-Ultramafic Magmatism in the Southwest Uganda Region of the African Rift: Implications from Experimental |  | Zay Ya, Kyaw, Otake, Tsubasa, Koide, Aoi, Sanematsu, Kenzo, Sato, Tsutomu (2020) Geochemical characteristics of ores and surface waters for environmental risk assessment in the Pinpet iron deposit, southern Shan State, Myanmar. Resource Geology, 70 (3). 296-308 doi:10.1111/rge.12231 | Journal (article/letter/editorial) | | environmental risk assessment in the Pinpet iron deposit, southern Shan State, Myanmar Kyaw Zay Ya1,2 | Tsubasa...located 11 km east of Taunggyi city, the capital of southern Shan State in Myanmar (Figure 1a). ZAY YA ET...and shelf conditions are found in northern and southern Shan State together with strata-bound carbonate-hosted...clastics, as well as local tuff and ash beds in southern Shan State, are associated with antimony deposits...water into the lower reaches from the highland region where surface and/or ground water had reacted with |  | | 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 | | Philippines-Sulawesi South-west Pacific New Zealand Sumatra-Java Southern Italy 4 17 42 7 20 15 29 16 15 52 13 24 12 Oceanic...section through the Macquarie Island ophiolite complex (after Griffin and Varne 1980). VOLCANIC SEQUENCE...Sediments SHEETED DYKE COMPLEX MASSIVE GAB BROS LAYERED GABBR0 COMPLEX X~ X X—X~X~X— x— x — X...the Philippines, Japan, southern Alaska, part of Central America (southern Mexico-Costa Rica), and much...Sumatra and Java in the Indian Ocean, and the southern Aegean Sea in the eastern Mediterranean. As a |  | | Report (volume) | | See Figure 5 in Chapter 4 by Hazen et al. Carbonatite lava flow from an eruption of Oldoinyo Lengai...........................................301 Carbonatite mineral deposits............................................................305 GENESIS OF CARBONATITE MAGMAS.........................................special insights to Earth’s dynamic state and complex history. Progress in all of these areas depends...ceased. Details of coal’s structural chemistry and complex maturation processes remain obscure, and thus represent |
|
