Highly ordered, homogeneous ferrocolumbite from an anorogenic granitic pegmatite at Ivittuut (Ivigtut), SW Greenland

Neues Jahrbuch fur Mineralogie, Monatshefte

Volumn 10, Issue , 2000, Pages 433-443

  Novák, Milan ^a   Černý, Petr ^b  

^a MASARYK UNIVERSITY   (Czech Republic)

^b UNIVERSITY OF MANITOBA   (Canada)

Author keywords

Anorogenic granitic pegmatite; Electron microprobe; Ferrocolumbite; Ivittuut (Ivigtut); Structural state; SW Greenland

Indexed keywords

EID: 0040782353     PISSN: 00283649     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (31)

1. APPLEMAN, D. E. & EVANS, H. T. Jr. (1973): Job 9214. Indexing a least-squares refinement of powder diffraction data. - U.S. Geol. Surv., Comp. Contr. 20.
2. BEDOE-STEPHENS, B. & FORTEY, N. J. (1981): Columbite from the Carrock Fell tungsten deposit. - Miner. Mag. 44: 217-223.
3. BELKASMI, M., CUNEY, M. & POLLARD, P. J. (1998): Columbite-tantalite from the Ez-zirazi P-poor, Montebras and Yichun P-rich rare metal granites: Genetic implications. - Acta Univ. Carol., Geol. 42: 3-6.
4. BEUS, A. A. (1982): Metallogeny of Precambian rare-metal granitoids. - Rev. Bras. Geosci. 12: 410-413.
5. BØGGILD, O. B. (1953): The mineralogy of Greenland. - Meddr. Grønland, Bd. 149, Nr. 3, C. A. Reitzels Forlag, Kobenhavn.
6. ČERNÝ, P. (1991): Rare-element granitic pegmatites. I. Anatomy and internal evolution of pegmatite deposits. - Geosci. Can. 18: 49-67.
7. ČERNÝ, P. & ERCIT, T. S. (1985): Some recent advances in the mineralogy and geochemistry of Nb and Ta in rare-element granitic pegmatites. - Bull. Minér. 108: 499-532.
8. -(1989): Mineralogy of niobium and tantalum: crystal chemical relationships, paragenetic aspects and their economic implications. - In: MÖLLER, P., ČERNÝ, P. & SAUPÉ, F. (eds.): Lanthanides, Tantalum and Niobium. - Springer Verlag, Berlin, Heidelberg, New York, pp. 27-79.
9. ČERNÝ, P., NOVÁK, M. & CHAPMAN, R. (1992): Effects of sillimanite-grade metamorphism and shearing on Nb,Ta-oxide minerals in granitic pegmatites: Maršikov, northern Moravia, Czechoslovakia. - Can. Miner. 30: 699-718.
10. DRYSDALL, A. R., JACKSON, N. J., RAMSAY, C. R., DOUCH, C. J. & HACKETT, H. (1984): Rare element mineralization related to Precambrian alkali granites in the Arabian Shield. - Econ. Geol. 79: 1366-1377.
11. ERCIT, T. S. (1994): The geochemistry and crystal chemistry of columbite-group minerals from granitic pegmatites, southwestern Grenville Province, Canadian Shield. - Can. Miner. 32: 421-438.
12. ERCIT, T. S., WISE, M. A. & ČERNÝ, P. (1995): Compositional and structure systematics of the columbite group. - Amer. Miner. 80: 613-619.
13. GOLDSCHMIDT, V. (1913): Atlas der Krystallformen. - Carl Winters, Universitäts-buchhandlung, Heidelberg.
14. JACKSON, N. J. & RAMSAY, C. R. (1986): Post-orogenic felsic plutonism, mineralization and chemical specialization in the Arabian Shield. - Trans. Inst. Min. Metall, Sec. B (Appl. Earth Sci.) 95: B 83-93.
15. JOHAN, V. & JOHAN, Z. (1994): Accessory minerals of the Cínovec (Zinnwald) granite cupola, Czech Republic Part 1: Nb-, Ta-and Ti-bearing oxides. - Miner. Petrol. 51: 323-343.
16. v. KNORRING, O. (1960): Some geochemical aspects of a columbite-bearing soda granite from south-east Uganda. - Nature (London) 188: 204-206.
17. v. KNORRING, O. & FADIPE, A. (1981): On the mineralogy and geochemistry of niobium and tantalum in some granite pegmatites and alkali granites of Africa. -Bull. Minér. 104: 496-507.
18. KOMKOV, A. I. (1970): Relationship between the X-ray constants of columbites and composition. - Dokl. Acad. Sci. USSR 194: 434-436. (in Russian).
19. LAHTI, S. (1987): Zoning in columbite-tantalite crystals from the granitic pegmatites of the Eräjärvi area, southern Finland. - Geochim. Cosmochim. Acta 51: 509-517.
20. LINNEN, R. L. & KEPPLER, H. (1995): Columbite and tantalite solubility in granitic melts at 800°C and 2kbar. - In: PAŠAVA, J., KŘÍBEK, B. & ŽáK, K. (eds.): Mineral Deposits. - Balkema Rotterdam, pp. 467-468.
21. LINNEN, R. L. & KEPPLER, H. (1997): Columbite solubility in granitic melts: consequences for the enrichment and fractionation of Nb and Ta in the Earth's crust. - Contrib. Miner. Petrol. 128: 213-227.
22. NEIVA, A. M. R. (1996): Geochemistry of cassiterite and its inclusions and exsolution products from tin and tungsten deposits in Portugal. - Can. Miner. 34: 745-768.
23. NOVÁK, M. & POVONDRA, P. (1995): Elbaite pegmatites in the Moldanubicum; a new subtype of complex pegmatites. - Miner. Petrol. 71: 159-176.
24. PAULY, H. (1974): Ivigtut cryolite deposit SW-Greenland. - In: STEMPROK, M. (ed.): Mineralization associated with acid magmatism, Vol. 1. - Geological Survey, Prague, pp. 393-399.
25. -(1992): Topaz, prosopite and closing stages of formation of the Ivigtut cryolite deposit, South Greenland. - Meddr. Grønland, Geosci. 28: 22 p.
26. PAULY, H. & BAILEY, J. C.: Genesis and evolution of the Ivigtut cryolite deposit, SW Greenland, (in press).
27. PAULY, H. & PETERSEN, O. V. (1993): Cerussite from the pegmatite overlying the cryolite deposit in Ivigtut, South-West Greenland. - N. Jb. Miner. Mh. 1993: 241-248.
28. POLLARD, P. J. (1989 a): Geochemistry of Granites associated with tantalum and niobium mineralization. - In: MÖLLER, P., ČERNÝ, P. & SAUPÉ, F. (eds.): Lanthanides, Tantalum and Niobium. - Springer Verlag, Berlin, Heidelberg, New York, pp. 145-170.
29. -(1989 b): Geological characteristics and genetic problems associated with the development of granite-hosted deposits of tantalum and niobium. - In: MÖLLER, P., ČERNÝ, P. & SAUPÉ, F. (eds.): Lanthanides, Tantalum and Niobium. - Springer Verlag, Berlin, Heidelberg, New York, pp. 266-273.
30. POUCHOU, J. L. & PICHOIR, F. (1985): "PAP" procedure for improved quantitative microanalysis. - Microbeam Anal. 20: 104-105.
31. SPILDE, M. N. & SHEARER, C. K. (1992): A comparison of tantalum-niobium oxide assemblages in two mineralogically distinct rare-element granitic pegmatites, Black Hills, South Dakota. - Can. Miner. 30: 719-738.