late neoproterozoic overprinting of the cassiterite and tantalite

late neoproterozoic overprinting of the cassiterite and tantalite

late neoproterozoic overprinting of the cassiterite and tantalite
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Late Neoproterozoic overprinting of the cassiterite and · Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatit

late neoproterozoic overprinting of the cassiterite and tantalite

  • Late Neoproterozoic overprinting of the cassiterite and

    · Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Columbitetantalite and cassiterite mineralisation is associated with some of these pegmatites Columbitetantalite mineralisation in pegmatites in Burundi has been dated at 962 ± 2 Ma and 968 + 33/−29 Ma (U–Pb dating columbitetantaliteLate Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Author links open overlay panel Stijn Dewaele a Friedhelm HenjesKunst b Frank Melcher b Maria Sitnikova b Ray Burgess c Axel Gerdes d Max Alonso Fernandez a Friso De Clercq e Philippe Muchez e Bernd Lehmann fLate Neoproterozoic overprinting of the cassiterite andLate Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) August 2011 Journal of African Earth Sciences 61(1):1026(PDF) Late Neoproterozoic overprinting of the cassiterite

  • (PDF) Late Neoproterozoic overprinting of the cassiterite

    Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa ravi chandra Stijn Dewaele + 10 More Download PDF Download Full PDF Package This paper A short summary of this paper 37 Full PDFs related to this paper Read Paper Late Neoproterozoic overprinting of the cassiterite and columbitetantaliteColumbitetantalite formed during the crystallisation of the pegmatites, followed by intense alkali metasomatism, ie widespread growth of albite and white mica The major part of the cassiterite mineralisation is, however, concentrated in zones associated with intense phyllic alteration U–Pb ages of columbitetantalite samples vary between ∼975 Ma and ∼930 Ma The oldest ages (975 + 8Late Neoproterozoic overprinting of the cassiterite andPlease cite this article in press as: Dewaele, S, et al Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central AfricaJournal of African Earth Sciences

  • Late Neoproterozoic overprinting of the cassiterite and

    Columbitetantalite formed during the crystallisation of the pegmatites, followed by intense alkali metasomatism, ie widespread growth of albite and white mica The major part of the cassiterite mineralisation is, however, concentrated in zones associated with intense phyllic alteration U–Pb ages of columbitetantalite samples vary between ∼975 Ma and ∼930 Ma The oldest ages (975 + 8Please cite this article in press as: Dewaele, S, et al Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central AfricaJournal of African Earth SciencesThe major part of the cassiterite mineralisation is, however, concentrated in zones associated with intense phyllic alteration U Pb ages of columbitetantalite samples vary between 975 Ma and 930 Ma The oldest ages (975 + 82/ 83 Ma and 966 + 87/ 86 Ma) overlap with previous reported Rb Sr ages of the emplacement of the pegmatites ( 965 Ma) and are interpreted to reflect theLate Neoproterozoic overprinting of the cassiterite and

  • Late Neoproterozoic overprinting of the cassiterite and

    Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) The pegmatites of the Gatumba area (western Rwanda) have historically been mined for their columbitetantalite and cassiterite mineralisation, but contain also beryl, apatite, spodumene, amblygonite, and rare phosphates Columbitetantalite formedLate Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Journal of African Earth Sciences 61: 1026 Xu LG, Lehmann B, Mao JW, Qu W, Du A (2011) ReOs age of polymetallic NiMoPGEAu mineralization in Early Cambrian black shales of South China a reassessmentlate neoproterozoic overprinting of the cassiterite andColumbite and tantalite are variations of the general formula (fe,mn)(nb,ta)2o6, and the mineral is called tantalite when the tantalum content exceeds the niobium content, and columbite (niobite) late neoproterozoic overprinting of the cassiterite andColumbitetantalite and cassiterite mineralisation is associated with some of these pegmatitesLate Neoproterozoic Overprinting Of The Cassiterite And

  • late neoproterozoic overprinting of the cassiterite and

    Columbite Ore Cassiterite vajirasri Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites flotation as goldtungsten wolframcassiterite tin Get Get Price columbite tantalite 1998 Columbite also called niobite niobitetantalite and columbate Fe MnNb 2 O 6 is a black mineral group that is an ore of has a submetallic luster and a high density and is aLate Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) By Stijn Dewaele, Friedhelm HenjesKunst, Frank Melcher, Maria Sitnikova, Ray Burgess, Axel Gerdes, Max Alonso Fernandez, Friso De Clercq, Philippe Muchez and Bernd Lehmann Cite BibTex; Full citation; Topics: 40Ar39Ar age dating, Cassiterite, ColumbiteLate Neoproterozoic overprinting of the cassiterite COREGeochemical evolution of micas and sn nb ta ,dec 01, 2015 late neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the gatumba area, rwanda journal of african earth sciences, volume 61, issue 2011, pplate neoproterozoic overprinting of the cassiterite and

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    columbite tantalite apatite Late Neoproterozoic overprinting of the cassiterite and It is therefore expected overlap with the group of younger columbitetantalite ages ob that the ages of columbitetantalite should be older than those for tained by U–Pb age dating and partly overlap with the age re cassiterite mineralisation and closer to the reported dates forThe major part of the cassiterite mineralisation is, however, concentrated in zones associated with intense phyllic alteration U Pb ages of columbitetantalite samples vary between 975 Ma and 930 Ma The oldest ages (975 + 82/ 83 Ma and 966 + 87/ 86 Ma) overlap with previous reported Rb Sr ages of the emplacement of the pegmatites ( 965 Ma) and are interpreted to reflect theLate Neoproterozoic overprinting of the cassiterite and(2011) Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) J Afr Earth Sci 61:1026 Dewaele S, De Clercq F, Hulsbosch N, Piessens K, Boyce A, Burgess R, Muchez P (Subm) Metallogenesis of the veintypeLate Neoproterozoic Overprinting Of The Cassiterite And

  • late neoproterozoic overprinting of the cassiterite and

    Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Journal of African Earth Sciences 61: 1026 Xu LG, Lehmann B, Mao JW, Qu W, Du A (2011) ReOs age of polymetallic NiMoPGEAu mineralization in Early Cambrian black shales of South China a reassessmentIn April 2016 Manchester eScholar was replaced by the University of Manchester’s new Research Information Management System, Pure In the autumn the University’s research outputs will be available to search and browse via a new Research PortalLate Neoproterozoic overprinting of the cassiterite andSearch text Search type Research Explorer Website Staff directory Alternatively, use our A–Z indexLate Neoproterozoic overprinting of the cassiterite and

  • late neoproterozoic overprinting of the cassiterite and

    Geochemical evolution of micas and sn nb ta ,dec 01, 2015 late neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the gatumba area, rwanda journal of african earth sciences, volume 61, issue 2011, ppColumbite Ore Cassiterite vajirasri Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites flotation as goldtungsten wolframcassiterite tin Get Get Price columbite tantalite 1998 Columbite also called niobite niobitetantalite and columbate Fe MnNb 2 O 6 is a black mineral group that is an ore of has a submetallic luster and a high density and is alate neoproterozoic overprinting of the cassiterite andLate Neoproterozoic Overprinting Of The Cassiterite And Columbite Grinding Mill SP Tombe The Northwest Region has long been known for its history of mining and its vast endowment of precious and base metals The region is prospective for a wide range of mineral deposits large bulktonnage porphyry CuAuMo highgrade AuAg precious metal AgPbZn polymetallic ultramafichosted NiCoPtPdLate Neoproterozoic Overprinting Of The Cassiterite And

  • tantalite flotation cassiterite

    Read Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area Rwanda Central Africa Journal of AfricanKnow More beneficiation cassiterite ore mining plant cassiterite Assessment Of Beneficiation Routes Of Tantalite Ores ElectroFlotation Research on Fine Cassiterite W Qin L Ren and W Sun get priceKnow More RE eMineralsDewaele, S et al (2011) Late Neoproterozoic overprinting of the cassiterite and columbitetantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Journal of African Earth Sciences 61: 10–26 Hulsbosch, N et al (2013) Petrographic and mineralogical characterisation of fractionated pegmatites culminating in the NbTaSn pegmatites of the Gatumba area (western RwandaGatumba, Ngororero District, Western Province, Rwanda