 | Dewaele, S., De Clercq, F., Hulsbosch, N., Piessens, K., Boyce, A., Burgess, R., Muchez, Ph. (2016) Genesis of the vein-type tungsten mineralization at Nyakabingo (Rwanda) in the KaragweāAnkole belt, Central Africa. Mineralium Deposita, 51 (2) 283-307 doi:10.1007/s00126-015-0608-x | Journal (article/letter/editorial) | | the vein-type tungsten mineralization at Nyakabingo (Rwanda) in the KaragweāAnkole belt, Central Africa...S. Dewaele 1 & F. De Clercq 2 & N. Hulsbosch 2 & K. Piessens 3 & A. Boyce 4 & R. Burgess 5 & Ph. Muchez...vein-type tungsten deposit at Nyakabingo in the central Tungsten belt of Rwanda is located in the eastern...and the typical association of the W deposits in Rwanda, but also worldwide, with granite intrusions, W...Fluid flow . KaragweāAnkole belt . Neoproterozoic . Rwanda . Tungsten mineralization Editorial handling: |  | | Journal (article/letter/editorial) | | quartz veins: Evidence from the Karagwe-Ankole Belt (Rwanda) Niels Hulsbosch a,ā, Marie-Christine Boiron b...quartz veins of the Nyakabingo deposit of the Karagwe-Ankole belt in Central Rwanda. The vein system (992...in NbāTaāSn mineralisation. Muscovite in the Nyakabingo veins is signiļ¬cantly enriched in granitophile...GatumbaāGitarama leucograniteā pegmatite ļ¬eld of Central Rwanda (Central Africa), which is spatiotemporally related...black-shale hosted, tungsten quartz vein system of Nyakabingo (Dewaele et al., in press). Granitic pegmatites |  | Van Daele, J., Hulsbosch, N., Dewaele, S., Boiron, M.-C., Piessens, K., Boyce, A., Muchez, Ph. (2018) Mixing of magmatic-hydrothermal and metamorphic fluids and the origin of peribatholitic Sn vein-type deposits in Rwanda. Ore Geology Reviews, 101. 481-501 doi:10.1016/j.oregeorev.2018.07.020 | Journal (article/letter/editorial) | | vein-type deposits in Rwanda J. Van Daele, N. Hulsbosch, S. Dewaele, M.-C. Boiron, K. Piessens, A. Boyce...Van Daele, N. Hulsbosch, S. Dewaele, M.-C. Boiron, K. Piessens, A. Boyce, Ph. Muchez, Mixing of magmatic-hydrothermal...origin of peribatholitic Sn vein-type deposits in Rwanda, Ore Geology Reviews (2018), doi: https://doi.org/10...origin of peribatholitic Sn vein-type deposits in Rwanda. Van Daele, J.a*, Hulsbosch, N.a, Dewaele, S.b...Rwamagana-Musha-Ntunga pegmatite-quartz vein field in East Rwanda has been evaluated by the following four methods: |  | | Journal (article/letter/editorial) | | belt is mainly known as a tin and tungsten ore province; more recently, exploration and mining have concentrated...may be very pronounced. The tin mining district of Rutongo/Rwanda was chosen as an example of Kibaran cassiterite...showing position of mineral deposits north of Kigali/Rwanda. Crosses tin granite bodies (G4); white with black...hydrothermally altered tin granites from nearby Kigali/Rwanda. Neutron activation analyses by P. M611er and P...HMI Berlin SW = ..'x. 1km I NE b~ ' ~ [ ~~~ c, k~ , / ~ , ~~ ' "-.~ " " .. shQles ~ / ~ ~ qunrl"zlte |  | | Book | | MINERALS& GEMSTONES of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published...East African resources 12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties...is not commonly known that neighbouring Uganda, Rwanda and Burundi are also sources of some interesting...the gem-quality tourmaline that can be found in Rwanda). Literature on the subject is limited; the previous...of the five featured countries - Burundi, Kenya, Rwanda, Tanzania and Uganda - and introduces the reader |  | | Journal (article/letter/editorial) | | siliciclastic material because, unlike MA quartz and feldspar, most heavy minerals are restricted to specific...logged the entire sedimentary sequence on the northern side of the Rwenzoris within the southern Albertine...to the northern sector of the Western Rift AC branch stretching from the Kivu volcanic province in the...the eastern shore of Lake Albert and along the northern side of Lake Kyoga, low-grade Neoproterozoic slate...splitting of Palaeolake Obweruka into a southern and a northern basin as a consequence of beginning exhumation |  | | Journal (article/letter/editorial) | | Argemela mineralized district, located near the world-class Panasqueira W mine in Portugal, exposes a...(H/F = 64-75%) coexisting with montebrasite, K-feldspar and cassiterite in the latest generation of intragranitic...vein system The Variscan Argemela Mineralized District (AMD) occurs within the Central Iberian Zone (CIZ...evolving separately. The first (the Argemela tin mine, ATM) consists of a vein swarm emplaced in low grade...cm width. It is mostly associated with quartz, K-feldspar and montebrasite, with quartz and montebrasite |  | | Journal (article/letter/editorial) | | belts, which extend over 700 km from the Katanga Province (Southeastern Congo) to Uganda, were formed by...KaragweAnkole Belt (KAB) to the northeast (Burundi, Rwanda, and Uganda). The KIB is separated from the KVB...Ā± 23 Ma [30]. Furthermore, extensive dating in Rwanda, based on Rb/Sr, was invalidated in [17] using...and 1956. N. Varlamoff expanded his fieldwork to Rwanda and Burundi between 1960 and 1969 in order to study...occurrence is the Gatumba mine in Central Rwanda [4,54,57]. Detailed studies in this district provide much useful |  | Hulsbosch, Niels, Hertogen, Jan, Dewaele, Stijn, AndrĆ©, Luc, Muchez, Philippe (2014) Alkali metal and rare earth element evolution of rock-forming minerals from the Gatumba area pegmatites (Rwanda): Quantitative assessment of crystal-melt fractionation in the regional zonation of pegmatite groups. Geochimica et Cosmochimica Acta, 132. 349-374 doi:10.1016/j.gca.2014.02.006 | Journal (article/letter/editorial) | | rock-forming minerals from the Gatumba area pegmatites (Rwanda): Quantitative assessment of crystal-melt fractionation...pegmatite zonation. The Gatumba pegmatite ļ¬eld (Rwanda, Central Africa) is chosen as case study area because...Alkali metal fractionation trends in pegmatitic K-feldspar (Rb 350ā6000 ppm, Cs 2ā160 ppm) and muscovite...from a parental granite composition (G4-composition: K 3.1 wt%, Rb 222 ppm, Cs 11 ppm). The fractionation...composition. Mathematical derivation of the K/Rb versus Cs relationship in K-feldspars conļ¬rms Rayleigh fractional |  | Peng, Ning-Jun, Jiang, Shao-Yong, Xiong, Suo-Fei, Pi, Dao-Hui (2018) Fluid evolution and ore genesis of the Dalingshang deposit, Dahutang W-Cu ore field, northern Jiangxi Province, South China. Mineralium Deposita, 53 (8) 1079-1094 doi:10.1007/s00126-018-0796-2 | Journal (article/letter/editorial) | | Dalingshang deposit, Dahutang W-Cu ore field, northern Jiangxi Province, South China Ning-Jun Peng 1 & Shao-Yong...North section of the Dahutang ore field, northern Jiangxi Province, South China. Vein- and breccia-style...Range of central South China in southern Jiangxi Province and adjacent areas. However, in recent years,...such as the gaint Dahutang and Zhuxi deposits in northern Editorial handling: B. Lehmann Electronic supplementary...Wuhan 430074, China Jiangxi Province, has been discovered on the northern margin of the Jiangnan Orogen |  | Wang, Yong, Tang, Juxing, Wang, Liqiang, Marten Huizenga, Jan, Santosh, M., Zheng, Silun, Hu, Yu, Gao, Teng (2020) Geology, geochronology and geochemistry of the Miocene Jiaoxi quartz vein-type W deposit in the western part of the Lhasa Terrane, Tibet: Implications for ore genesis. Ore Geology Reviews, 120. 103433 doi:10.1016/j.oregeorev.2020.103433 | Journal (article/letter/editorial) | | terrane is divided into the Southern, Central and Northern subterranes based 79 on their distinctive geological...structural characteristics (Zhu et al., 2011). The Northern 80 Lhasa subterrane is located between the Bangong...volcanic and magmatic rocks that dominate the Northern Lhasa subterrane (Zhu et al., 2011; 85 Wang...1b). The 120 BMP is exposed in the south of the mine area (Fig. 2a), and occurs in drillholes at a depth...comprises quartz (30-40 vol.%), alkali- 123 feldspar (35-45 vol.%), plagioclase (30-35 vol.%), and |  | Zhang, Qiang, Zhang, Rong-Qing, Gao, Jian-Feng, Lu, Jian-Jun, Wu, Jin-Wei (2018) In-situ LA-ICP-MS trace element analyses of scheelite and wolframite: Constraints on the genesis of veinlet-disseminated and vein-type tungsten deposits, South China. Ore Geology Reviews, 99. 166-179 doi:10.1016/j.oregeorev.2018.06.004 | Journal (article/letter/editorial) | | caused by the decomposition of plagioclase and K-feldspar. Alteration plays an important role in the formation...Dahutang deposit, located in northwestern Jiangxi Province, is a giant tungsten deposit with estimated reserves...Xihuashan and Piaotang deposits in southern Jiangxi Province are two large-scale vein-type wolframite deposits...rocks such as the Jiuling batholith in northern Jiangxi Province are widely distributed within this orogen...wolframite, molybdenite, cassiterite, beryl and feldspar. The sulfide stage is featured by assemblages |  | Makutu, Douxdoux Kumakele, Seo, Jung Hun, Lee, Insung, Oh, Jihye, Kang, Pilmo, Ongendangenda, Albert Tienge, Makoka, Frederic Mwanza (2023) Magmatic-Hydrothermal Fluid Processes of the Sn-W Granites in the Maniema Province of the Kibara Belt (KIB), Democratic Republic of Congo. Minerals, 13 (4) 458 doi:10.3390/min13040458 | Journal (article/letter/editorial) | | Processes of the Sn-W Granites in the Maniema Province of the Kibara Belt (KIB), Democratic Republic...Processes of the Sn-W Granites in the Maniema Province of the Kibara Belt (KIB), Democratic Republic...Abstract: The Kibara belt (KIB) in the Maniema province hosts orebodies bearing cassiterite-wolframite...Zimbabwe Craton, 1.4 Kaapvaal Craton; 2.1 Birimian Province, 2.2 Kibalian in north-eastern DRC; 3.1 Kibara...Eastern Desert, 4.2 Adola Belt, 4.3 Alto Ligonha Province, 4.4 Damara Belt, 4.5 Older Granites (Nigeria) |  | | Journal (article/letter/editorial) | | mainly in Zn-smectites derived from the weathering of K-feldspars, but it occurs locally as hemimorphite and...rocks), direct atmospheric leaching of the run of the mine (5ROM) ore with sulphuric acid will not be economically...highly fractionated peralkaline and metaluminous high-K calc-alkaline rocks as well as peraluminous igneous...can be easily leached during devitrification. High-K calc-alkaline metaluminous granites and volcanics...uraninite may crystallize in the most fractionated high-K calc-alkaline granites, but the volume of these granites |  | Cui, Xiaolin, Wang, Qingfei, Deng, Jun, Wu, Huaying, Shu, Qihai (2019) Genesis of the Xiaolonghe quartz vein type Sn deposit, SW China: Insights from cathodoluminescence textures and trace elements of quartz, fluid inclusions, and oxygen isotopes. Ore Geology Reviews, 111. 102929 doi:10.1016/j.oregeorev.2019.05.015 | Journal (article/letter/editorial) | | tin district, which genetically extends to the MogokāMandalayāMergui (MMM) belt, in the northern part...located in southwest China and corresponds to the northern part of the Sibumasu Block. It is bordered by...been linked to the Mogok metamorphic series in northern Burma (Searle et al., 2007; Mitchell et al., 2012;...monzogranite have similar mineral composition, including K-feldspar (25ā30%), plagioclase (25ā30%), quartz (35ā40%)...completely overprinted by hydrothermal K-feldspar. Some hydrothermal K-feldspar occurred in the greisenized granite |  | | Journal (issue) | | rare-element class pegmatites in the Borborema Province in NE-Brazil?...................................miarolitic granite of Cuasso al Monte, Varese province, (Southern Apls, Italy)ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦41... THOMAS, R., BOIRON, MC., DEWAELE, S., PLESSENS, K., MUCHEZ, P. The petrogenetic significance of melt...lithium exploration in the Barroso-AlvĆ£o area, northern Portugalā¦ā¦ā¦ā¦..72 MALCZEWSKI, D., DZIUROWICZ,...MĆLLER, A., SZUSZKIEWICZ, A., ILNICKI, S., NEJBERT, K. Quartz chemistry of the Julianna pegmatites and their |  | Harlaux, Matthieu, Mercadier, Julien, Marignac, Christian, Villeneuve, Johan, Mouthier, Bernard, Cuney, Michel (2019) Origin of the atypical Puy-les-Vignes W breccia pipe (Massif Central, France) constrained by trace element and boron isotopic composition of tourmaline. Ore Geology Reviews, 114. 103132 doi:10.1016/j.oregeorev.2019.103132 | Journal (article/letter/editorial) | | 2009a). The deposit was the secondranked tungsten mine in France during the 20th century with a past production...workings extended to 300 m below surface in the former mine, the vertical extent of the deposit has not been...(Mg), hematite (Fe), ilmenite (Mn, Ti), orthose (K), andradite (Ca), and Cr2O3 (Cr). Counting times were...ppm for Si, Al; 600 ppm for Na, Ca; 400 ppm for Mg, K, Ti; 1700 ppm for Fe; 1600 ppm for Mn; and 900 ppm...formula XY3Z6(T6O18)(BO3)3V3W, where X=Na+, Ca2+, K+, and vacancy (Xā); Y=Fe2+, Mg2+, Mn2+, Al3+, Li+ |  | Melcher, Frank, Graupner, Torsten, GƤbler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, OberthĆ¼r, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalumā(niobiumātin) mineralisation in African pegmatites and rare metal granites: Constraints from TaāNb oxide mineralogy, geochemistry and UāPb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) | | 2. North-eastern DRC (Ubendian, Orientale and northern North Kivu) D 4.3. Neoproterozoic (1000-542...data 4.4.2.2. Mineralogy 4.4.3. Alto-Ligonha Province (northern Mozambique) 4.4.3.1. Radiometric data 4.4...Pegmatites of Ethiopia and Somalia 5.4.3. Alto-Ligonha Province (Mozambique) 5.4.4. Damara Belt (Namibia) 5.4...columbite-tantalite is typical of the Alto Ligonha Province (Mozambique), CE P the Arabian-Nubian Shield...countries (Democratic Republic CE P of the Congo, Rwanda, Burundi, and Uganda) have an almost 100-year-long |  | | Journal (article/letter/editorial) | | specifically those in the Yenisei Ridge gold province (e.g. Olimpiada, Sovetskoe) which likely formed...Palaeozoic orogenic gold deposits such as those on the northern margin of the NCC (e.g. Wulashan). Permian strike-slip...Middle to Late Jurassic orogenic gold ores in northern Mongolia (e.g. Boroo) and central to eastern Transbaikal...Early Cretaceous gold provinces formed in the northern and eastern margins of the NCC (e.g. Jiaodong...Sukhoi Log (Lena province in southern margin of Siberia craton, Siberia) and Kumtor (northern flank of the |  | | Book | | (Umwandlung mit Austausch von Stoffen); e.g., feldspar altered to cassiterite. In 1855, Gustav Georg...been erroneously described as pseudomorphs after feldspar or calcite. Polyhedroid is the preferred term...local equilibria defined by a Lippmann the product, K(Br,Cl), appears milky, due to the development of Ć¾...fringes are produced by a reference rim was a Br-rich K(Br,Cl) phase and gradually beam, which is inclined...the molar volume reduction in replacing KBr by a K(Br,Cl) solid solution phase (Glikin et al., 1994; |  | Krylova, T. L., Pandian, M. S., Bortnikov, N. S., Anand S, Vijay, Gorelikova, N. V., Gonevchuk, V. G., Korostelev, P. G. (2012) Degana (Rajasthan, India) and Tigrinoe (Primorye, Russia) tungsten and tin-tungsten deposits: Composition of mineral-forming fluids and conditions of wolframite deposition. Geology of Ore Deposits, 54 (4) 276-294 doi:10.1134/s1075701512040046 | Journal (article/letter/editorial) | | deposit, the ore veins in granite were formed from KāNaāCaā(Mg, Fe, etc.) chloride solutions with a salinity...and wolframite along with decreased amounts of Kfeldspar, plagioclase, and biotite are typical of altered...unaltered granite toward ore veins. The proportions of K, Al, and Ca are distorted owing to fluidārock interaction...other elements caused by inho mogeneity of rocks. KāAr age of zinnwaldite is estimated at (870ā860) Ā±...(pealike) granite (the third phase). The quartzāfeldspar hornfels formed under the effect of the early |  | | Journal (article/letter/editorial) | | mineralisation of the Gatumba pegmatite dyke system (NW Rwanda) Niels Hulsbosch, Philippe Muchez PII: S0024-4937(19)30445-1...mineralisation of the Gatumba pegmatite dyke system (NW Rwanda), LITHOS, https://doi.org/10.1016/j.lithos.2019...of phosphorus- and boron-rich pegmatites in NW Rwanda has been investigated using petrography, fluid...and LA-ICP-MS). The Gatumba dyke system (GDS) in Rwanda has been selected for this study because it hosts...Cst1 mineralisation in and around large perthitic K-feldspars. Isochore reconstructions of this L1 fluid |  | | Journal (volume) | | Rocks from the Hogger, Algeria: J. R. Kienast and K. Ouzegane . . . . . . . . . . . . . 57 Section 2:...Precambrian Gabbro- anorthosite Complexes, Tete Province, Mozambique: M. W. C. Barr and M. A. Brown .....Vail ............. 161 Ductile Shear Zones in the Northern Red Sea Hills, Sudan and their Implication for...Geological Mapping and Mineral Exploration in Northern Sudan using Satellite Remote Sensing: P. S. Griffiths...Discussion with Reference to the Niger-Nigerian Province: J . Kinnaird and P. Bowden . . . . . . . . . |  | | Book (chapter) | | (Umwandlung mit Austausch von Stoffen); e.g., feldspar altered to cassiterite. In 1855, Gustav Georg...been erroneously described as pseudomorphs after feldspar or calcite. Polyhedroid is the preferred term...local equilibria defined by a Lippmann the product, K(Br,Cl), appears milky, due to the development of Ć¾...fringes are produced by a reference rim was a Br-rich K(Br,Cl) phase and gradually beam, which is inclined...the molar volume reduction in replacing KBr by a K(Br,Cl) solid solution phase (Glikin et al., 1994; |  | | Conference Proceedings (Volume) | | Cover photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations started...regional scale 3D-model of the Skellefte mining district, northern Sweden ...................................VHMS-type deposits, Kristineberg area, Skellefte District, Sweden . . ....................................modelling for VMS exploration in the PyhƤsalmi district, Central Finland ..............................ore body structural complexities: KDC East Gold Mine, South Africa . . ............................ |
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