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late neoproterozoic overprinting of the cassiterite and tantalite

Late Neoproterozoic overprinting of the cassiterite and ...

Aug 01, 2011  Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Author links open overlay panel Stijn Dewaele a Friedhelm Henjes-Kunst 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 f

(PDF) Late Neoproterozoic overprinting of the cassiterite ...

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) August 2011 Journal of African Earth Sciences 61(1):10-26

Late Neoproterozoic overprinting of the cassiterite and ...

Aug 01, 2011  Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Dewaele, Stijn Henjes-Kunst, Friedhelm

Journal of African Earth Sciences

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Stijn Dewaelea,⇑, Friedhelm Henjes-Kunstb, Frank ...

Late Neoproterozoic overprinting of the cassiterite and ...

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Research output: Contribution to journal › Article › peer-review

‪Ray Burgess‬ - ‪Google Scholar‬

22 行  Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing

M. Fernandez-Alonso Royal Museum for Central Africa ...

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) more by Axel Gerdes , Bernd Lehmann , Stijn Dewaele , and M. Fernandez-Alonso

Gatumba, Ngororero District, Western Province, Rwanda

Dewaele, S. et al. (2011) Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). Journal of

Staff directory Royal Museum for Central Africa ...

‘Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa)’. Journal of african Earth Sciences 61: 10-26. Elsevier. I.F. 2.063.

Minerals Free Full-Text Mineralogy and Trace Element ...

Tungsten mineralization in hydrothermal quartz veins from the Nyakabingo,Gifurwe and Bugarama deposits in central Rwanda occurs as the iron-rich endmember ofthe wolframite solid solution series (ferberite) and in the particular form of reinite, whichrepresents a pseudomorph of ferberite after scheelite. Primary ferberite, reinite and latesecondary ferberite are characterized by their trace ...

M. Fernandez-Alonso Royal Museum for Central Africa ...

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) more by Axel Gerdes , Bernd Lehmann , Stijn Dewaele , and M. Fernandez-Alonso

Staff directory Royal Museum for Central Africa ...

‘Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa)’. Journal of african Earth Sciences 61: 10-26. Elsevier. I.F. 2.063.

Two generations of cassiterite in albite-spodumene ...

Dewaele S, Henjes-Kunst F, Melcher F, Sitnikova M, Burgess R, GerdesA, Fernandez MA, Clercq FD, Muchez P, Lehmann B (2011) Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). Journal of African Earth Sciences 61:10–26.

The geochemical signature of rare-metal pegmatites in ...

Sep 01, 2014  Late Neoproterozoic overprinting of the cassiterite and columbite–tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) J. Afr. Earth Sci. , 61 ( 2011 ) , pp. 10 - 26 Article Download PDF View Record in Scopus Google Scholar

Geochronology of the Zambezi Supracrustal Sequence ...

Stijn Dewaele, Friedhelm Henjes-Kunst, Frank Melcher, Maria Sitnikova, Ray Burgess, Axel Gerdes, Max Alonso Fernandez, Friso De Clercq, Philippe Muchez, Bernd Lehmann Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa), Journal of African Earth Sciences 61 ...

Internal Evolution and Disequilibrium Crystallization of ...

(2011) Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). J Afr Earth Sci 61:10-26

Neoproterozoic Rare Element Pegmatites from Gitarama and ...

The aim of this work was to study the petrography, geochemistry of the pegmatites, their relationship to the mineralisation in Gitarama and Gatumba areas, and current processes that occurred after the primary emplaced neoproterozoic rare element pegmatites. Previous works on pegmatites were geochemistry and geological maps which are not enough for focused exploration and mine planning.

IELF: Prof. Dr. Bernd Lehmann

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). Journal of African Earth Sciences 61: 10-26. Xu LG, Lehmann B, Mao JW, Qu W, Du A (2011) Re-Os age of polymetallic Ni-Mo-PGE-Au mineralization in Early Cambrian black shales of South China - a reassessment.

U-Pb geochronology on zircon and columbite-group minerals ...

Aug 12, 2016  Dewaele S, Henjes-Kunst F, Melcher F, Sitnikova M, Burgess R, Gerdes A, Fernández-Alonso M, De Clerq F, Muchez P, Lehmann B (2011) Late Neoproterozoic overprinting of the cassiterite and columbite –tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). J Afr Earth Sci 61:10–26. Article Google Scholar

International Research Journal of Earth Sciences : A ...

The KAB, which spans Rwanda, Burundi, Southwestern Uganda and Northwestern Tanzania, and the KIB together host a large metallogenic province that is composed of numerous rare -metal ore deposits mineralised in niobium-tantalum(Nb-Ta), tin(Sn) and tungsten(W).The part of the KAB located in Rwanda contains the bulk of cassiterite, columbite ...

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Columbite-tantalite usually occurs as (PDF) Late Neoproterozoic overprinting of the cassiterite 2011/08/01 Columbite-tantalite formed during the crystallisation of the pegmatites, followed by intense alkali metasomatism, . widespread growth of albite and

Geochronology and source of the rare-metal pegmatite in ...

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) J. Afr. Earth Sc. (2011) X.L. Wang et al. Geochemical zonation across a Neoproterozoic orogenic belt: Isotopic evidence from granitoids and metasedimentary rocks of the Jiangnan orogen, China.

Mineralienatlas Lexikon

Dewaele, S. et al. (2011): Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). J. African Earth Sciences 61, 10–26.

Petrography, geochemistry and U–Pb zircon age of the ...

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) J. Afr. Earth Sc. (2011) W.F. McDonough et al. Potassium, Rubidium and Cesium in the Earth and Moon and the evolution of the mantle of the Earth.

Late Neoproterozoic overprinting of the cassiterite ... - CORE

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) By Stijn Dewaele, Friedhelm Henjes-Kunst, Frank Melcher, Maria Sitnikova, Ray Burgess, Axel Gerdes, Max Alonso Fernandez, Friso De Clercq, Philippe Muchez and Bernd Lehmann

IAPETUS2 Rwanda 2 - University of St Andrews

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda. Journal of African Earth Sciences 61, 10-26 Cahen, L, Snelling NJ, Delhal J, Vail JR, Bonhomme M, Ledent D 1984. The geochronology and evolution of

Prof Raymond Burgess - Publications The University of ...

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) Dewaele, S., Henjes-Kunst ...

‪Bernd Lehmann‬ - ‪Google Scholar‬

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa) S Dewaele, F Henjes

Two generations of cassiterite in albite-spodumene ...

Dewaele S, Henjes-Kunst F, Melcher F, Sitnikova M, Burgess R, GerdesA, Fernandez MA, Clercq FD, Muchez P, Lehmann B (2011) Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). Journal of African Earth Sciences 61:10–26.

Developing new models for strategic Sn-W-Ta-Li ...

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda. Journal of African Earth Sciences 61, 10-26 Cahen, L, Snelling NJ, Delhal J, Vail JR, Bonhomme M, Ledent D 1984.

IELF: Prof. Dr. Bernd Lehmann

Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). Journal of African Earth Sciences 61: 10-26. Xu LG, Lehmann B, Mao JW, Qu W, Du A (2011) Re-Os age of polymetallic Ni-Mo-PGE-Au mineralization in Early Cambrian black shales of South China - a reassessment.

Genesis of the vein-type tungsten mineralization at ...

Aug 23, 2015  Dewaele S, Henjes-Kunst F, Melcher F, Sitnikova MA, Burgess R, Gerdes A, Fernandez-Alonso M, De Clercq F, Muchez P, Lehmann B (2011) Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). J Afr Earth Sci 61:10–26 CrossRef Google Scholar

Introduction of Several Albitite-greisen Type Deposits of ...

Introduction of Several Albitite-greisen Type Deposits of Korea taeniolite;leucocratic granite;greisenization;albitization; Uljin cassiterite deposit had been known to be a pegmatitic origin derived from the Wangpiri (Buncheon) granitic gneiss of Precambrian period. Lithium ore also shows the same origin and its lithium bearing mineral was ascertained to be a taeniolite.

Mineralienatlas Lexikon

Dewaele, S. et al. (2011): Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa). J. African Earth Sciences 61, 10–26.

Precise columbite-(Fe) and zircon U-Pb dating of the ...

The Nanping pegmatite deposit is a large Ta-Nb-Sn deposit in the northeastern Cathaysia Block, SE China. Columbite-group minerals from zone I in the N

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Economic Geology of Niobium and Tantalum

The Kenticha deposit in Ethiopia is a highly fractionated subhorizontal Li-Cs-Ta pegmatite sheet with a thickness approaching 100 m that is related to Late Neoproterozoic I-type granites. Exploitable tantalum grades occur in its upper zone characterized by spodumene and high concentrations of Rb, Cs and Ga (K ster et al. 2009).

Pegmatites questions and answers? Judith A. Kinnaird SEG ...

Late Neoproterozoic creation of Gondwana 500 Ma Panafrican pegmatites • Trans-Saharan belt - passive margin of the West African craton collided with the active continental margin of the East Saharan block. Ocean closure/peak plutonism in north central Nigeria ~597±20 Ma (van Breemen et al. 1977). Numerous Hbl–Bt granites ~585 Ma.