 | 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 Ī“56 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 Ī“56 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 |  | | 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 (Ī“56 Fe) as well...reserves of the REE as large as or larger than carbonatite-hosted deposits. However, the association of...[16] investigate the origin of zirconāallaniteāmagnetite bands in alkaline rocks intruding the Chungju |  | | 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. Alkalineācarbonatite rocks crystallized in the presence of brineāmelts |  | | Journal (article/letter/editorial) | | SCIENCE Vol. 128, No. 3, 2019 Vol. 522, 2019 Magnetite chemistry and implications for the magmatic-hydrothermal...element sulfide mineralization in the Coldwell Complex, Midcontinent Rift, CanadaāDavid J. Good and Peter...the formation of early gabbros at the Coldwell Complex, Ontario, Canadaā Yong-hua Cao, David J. Good,...oxide deposits associated with mafic-ultramafic-carbonatite complexes in the Kuluketage block, NW ChinaāW...mineral systems in the Tethys-Himalayan zone of southern Tibet, Chinaā Hua-Wen Cao, Hao Zou, Leon Bagas |  | | 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) | | 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, MiÅosz (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 carbonatiteāijoliteāpyroxeniteāolivinite complex comprises several carbonatite fields: Neske...strontianite, bastnƤsite, and synchysite. Varieties of carbonatite that contain the highest concentrations of REE...[12ā17], China India [39ā42], Italy have [43,44], Malawi [45ā51], on the subjectNamibia of rare earth carbonatites...[18ā37], Finland [38], India [39ā42], Italy [43,44], Malawi [45ā51], Tanzania [67], the USA [68ā72], 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 alkalineāultramafic complex (northwest Russia) contains magnesiocarbonatites...mineralization of the Vuoriyarvi alkalineāultramafic complex. Keywords: magnesiocarbonatites; REE; ancylite;...global rare earth oxide resources are hosted by carbonatite deposits, and bastnƤsite, monazite, and xenotime...technologies [3,4]. Therefore, the study of REEācarbonatite complexes, namely, mineralogy and ore formation |  | | 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 rĆødbergite. We studied the pro- Pr ep... gressive transformation of primary igneous carbonatite to rĆødbergite using SEM and ICP-MS trace element...assemblage of calcite, dolomite, apatite, pyrite, magnetite and columbite with accessory quartz, barite, pyrochlore |  | | 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 |  | | 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...author. localities (e.g. the large Marcona zone of magnetite bodies replacing Jurassic marine limestones at |  | | 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...i localities (e.g. the large Marcona zone of magnetite bodies replacing Jurassic marine limestones at |  | | 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 XāX~X~Xā xā x ā 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. ļ¦ Carbonatite lava flow from an eruption of Oldoinyo Lengai...........................................301 Carbonatite mineral deposits............................................................305 GENESIS OF CARBONATITE MAGMAS.........................................special insights to Earthās dynamic state and complex history. Progress in all of these areas depends...ceased. Details of coalās structural chemistry and complex maturation processes remain obscure, and thus represent |
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