 | Hulsbosch, Niels, Hertogen, Jan, Dewaele, Stijn, André, 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) | | of rock-forming minerals from the Gatumba area pegmatites (Rwanda): Quantitative assessment of crystal-melt...crystal-melt fractionation in the regional zonation of pegmatite groups Niels Hulsbosch a,⇑, Jan Hertogen a, Stijn...whole sequence of regional pegmatite zonation. The Gatumba pegmatite field (Rwanda, Central Africa) is chosen...pegmatites grade outwardly into biotite, two-mica and muscovite pegmatites. Rare-element (Nb–Ta–Sn) pegmatites...K-feldspar (Rb 350–6000 ppm, Cs 2–160 ppm) and muscovite (Rb 670– 7000 ppm, Cs 10–150 ppm) define a single |  | | Journal (article/letter/editorial) | | (mainly Rwanda and the DR Congo), around the Kenticha mine (Ethiopia) and in the Alto Ligonha Province (Mozambique)...columbite-tantalite is typical of the Alto Ligonha Province (Mozambique), the Arabian-Nubian Shield (Egypt...1992; Černý et al., 2005). The provenance of pegmatite magmas remains poorly understood. Based on a study...affiliation and rare-element signature of the granite-pegmatite systems”. Peraluminous granites and associated...defined and include, in order of relative importance, Rwanda, the Democratic Republic of the Congo (DRC), Mozambique |  | Hulsbosch, Niels, Thomas, Rainer, Boiron, Marie-Christine, Dewaele, Stijn, Muchez, Philippe (2017) Direct Observation of Boro-Aluminosilicate Melt Compositions: Insights From Raman Spectroscopy of Melt Inclusions In Pegmatitic Tourmaline of the Gatumba-Gitarama Area (Rwanda) The Canadian Mineralogist, 55 (3) 377-397 doi:10.3749/canmin.1600093 | Journal (article/letter/editorial) | | INCLUSIONS IN PEGMATITIC TOURMALINE OF THE GATUMBA-GITARAMA AREA (RWANDA) NIELS HULSBOSCH§ Geodynamics and Geofluids...tourmaline-quartz-(muscovite) assemblages of common pegmatites of the Gatumba-Gitarama area (Rwanda). The melt...inclusions show a main mineralogy composed of muscovite, a-quartz, mogánite, dickite, and minor feldspars...bulk single-phase melt crystallization model for pegmatite formation. Based on reported experimental, theoretical...schorl-quartz-(muscovite) assemblage within the common mineralogical zonation of the pegmatite dike. Keywords: |  | 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) | | origin of peribatholitic Sn vein-type deposits in Rwanda J. Van Daele, N. Hulsbosch, S. Dewaele, M.-C. Boiron...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...Sn-mineralized Rwamagana-Musha-Ntunga pegmatite-quartz vein field in East Rwanda has been evaluated by the following...following four methods: quartz stable isotopes, muscovite geochemistry, fluid inclusion microthermometry |  | Hulsbosch, Niels, Boiron, Marie-Christine, Thomas, Rainer, Van Daele, Johanna, Dewaele, Stijn, Muchez, Philippe (2019) Evaluation of the petrogenetic significance of melt inclusions in pegmatitic schorl-dravite from graphic tourmaline-quartz assemblages: Application of LA-ICP-QMS analyses and volume ratio calculations. Geochimica et Cosmochimica Acta, 244. 308-335 doi:10.1016/j.gca.2018.10.023 | Journal (article/letter/editorial) | | tourmaline, melt inclusions, graphic intergrowth, pegmatite, heterogeneous trapping, residual melt, differentiation...differentiation ABBREVIATIONS: QTM = quartz-tourmaline-muscovite 1 ABSTRACT The composition of melt inclusions...quartz-tourmaline intergrowth assemblages of common, muscovite – rare-element class pegmatites belonging to the...analyses of tourmaline mineral inclusions in muscovite hosts for which the compositions have been independently...the early-Neoproterozoic pegmatite dykes of the Gatumba-Gitarama field in Rwanda. Multiple dykes have been |  | Chen, Zhuo, Chen, Jianping, Liu, Tao, Li, Yunfeng, Yin, Qichun, Du, Haishuang (2023) Regional Quantitative Mineral Prospectivity Mapping of W, Sn, and Nb-Ta Based on Integrated Information in Rwanda, Central Africa. Minerals, 13 (2) 189 doi:10.3390/min13020189 | Journal (article/letter/editorial) | | Sn, and Nb-Ta Based on Integrated Information in Rwanda, Central Africa Zhuo Chen 1,2 , Jianping Chen 2...Sn, and Nb-Ta Based on Integrated Information in Rwanda, Central Africa. Minerals 2023, 13, 189. https://doi...(Mn) and monazite (Mnz) have been discovered in Rwanda. The objective of this study was to present a regional...mapping (MPM) of W, Sn and Nb-Ta mineralization in Rwanda using the random forest (RF) method on the basis...the metallogenic regularity of W, Sn and Nb-Ta in Rwanda was summarized with the help of articles online |  | | Journal (article/letter/editorial) | | Journal Pre-proof Tracing fluid saturation during pegmatite differentiation by studying the fluid inclusion...cassiterite mineralisation of the Gatumba pegmatite dyke system (NW Rwanda) Niels Hulsbosch, Philippe Muchez... MUCHEZ, P., Tracing fluid saturation during pegmatite differentiation by studying the fluid inclusion...cassiterite mineralisation of the Gatumba pegmatite dyke system (NW Rwanda), LITHOS, https://doi.org/10.1016/j...of phosphorus- and boron-rich pegmatites in NW Rwanda has been investigated using petrography, fluid |  | | Journal (article/letter/editorial) | | tourmaline can be used as a petrogenetic indicator in pegmatite rocks and related mineralization. Previous studies...leucogranite, bearing either biotite and muscovite, or only muscovite in the more evolved facies. Tourmaline...(Damara Orogen, Ohere) Cape Granite Suite Gatumba Pegmatite Late Proterozoic Leucogranites Early Fanerozoic...Portugal (CIZ) Spain (CIZ) SW England South Africa Rwanda USA (Maine) USA (South Dakota) Sebago Granite...(Steven and Moore 1995), and the Gatumba granite-pegmatite system in Rwanda (Hulsbosch et al. 2014). Detailed |  | 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...assemblages of muscovite-quartz (±topaz-fluorite-tourmaline) occur in the granites, and muscovite-sericite-quartz...tectono-magmatic map of African rare-element pegmatite and rare-metal Figure 1. A simplified tectono-magmatic |  | | Journal (article/letter/editorial) | | assemblage includes quartz, K-feldspar, albite, muscovite and accessory montebrasite, cassiterite and columbite-tantalite...Mg. Trace element zonation in minerals, mainly muscovite and quartz, record crystallization/fractionation...(Kontak, 1990), Russia (Raimbault et al., 1995) and Western Europe (Charoy and Noronha, 1996; Breiter et al...quantitative modelling of trace element zonation in muscovite, using mineral/melt, fluid/melt partition coefficients... H isotopes. The D/H isotopic composition of muscovite was measured using an Elemental Analyzer (EA) |  | | Conference Proceedings (Volume) | | Southern Cross greenstone belt, Yilgarn Craton, Western Australia: midcrustal granite-related replacement...& Nigel J. Cook The Nihe iron deposit, Anhui Province, eastern China: skarn, IOCG or porphyritic iron...the ages of Baiyanghe Be-U deposit in Xinjiang province, northwest China ..............................through polycyclic orogeny: the example of the Litsa district, Russia Anne-Sylvie André-Mayer, Michel Cuney...mantle-crustal ore-forming systems of the Pechenga ore district (Fennoscandian shield) ..................... |
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