Compositional variation in columbite-group minerals from different types of granitic pegmatites of the Erajarvi district, South Finland

Journal of the Czech Geological Society

Volumn 45, Issue 1-2, 2000, Pages 107-118

  Lahti, S I ^a  

^a GEOLOGICAL SURVEY OF FINLAND   (Finland)

Author keywords

Chemical composition; Erajarvi; Ferrocolumbite; Ferrotantalite; Finland; Granite; Granitic pegmatite; Manganocolumbite; Manganotantalite; Orivesi; Proterozoic

Indexed keywords

CHEMICAL COMPOSITION; COLUMBITE; CRYSTAL CHEMISTRY; NIOBIUM; PEGMATITE; TANTALUM;

FINLAND;

EID: 0033800237     PISSN: 12108197     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (35)

1. Nb-Ta minerals from the Cap de Creus pegmatite field, eastern Pyrenees: Distribution and geochemical trends
2. Characteristics of pegmatite deposits of tantalum
3. Distribution, affiliation and derivation of rare-element granitic pegmatites in the Canadian Shield
4. Rare-element granitic pegmatites. Part I: Anatomy and internal evolution of pegmatite deposits
5. Geochemical and petrogenetic features of mineralization in rare-element granitic pegmatites in the light of current research
6. Some recent advances in the mineralogy and geochemistry of Nb and Ta in rare-element granitic pegmatites
7. Mineralogy of niobium and tantalum: Crystal chemical relationships, paragenetic aspects and their economic implications
8. The tantalite-tapiolite gap: Natural assemblages versus experimental data
9. Fractionation trends of the Nb- and Ta-bearing oxide minerals in the Greer Lake pegmatitic granite and its pegmatite aureole, southeastern Manitoba
10. Extreme fractionation in rare-element granitic pegmatites: Selected examples of data and mechanisms
11. The geochemistry and crystal chemistry of columbite-group minerals from granitic pegmatites, southwestern Grenville Province
12. On the granitic pegmatites of the Erajarvi area in Orivesi, southern Finland
13. The composition field of some Nb-Ta minerals in pegmatites - new observations
14. Zoning in columbite-tantalite indicated by microprobe studies
15. Zoning in columbite-tantalite crystals from granitic pegmatites of the Erajarvi area, southern Finland
16. Occurrence and mineralogy of the margarite- and muscovite-bearing pseudomorphs after topaz in the Juurakko pegmatite, Orivesi, southern Finland
17. The granitoids and pegmatites of the Erajarvi area. Symposium Precambrian granitoids, petrogenesis, geochemistry and metallogeny, excursion C1: Lateorogenic and synorogenic svecofenian granitoids and associated pegmatites of southern Finland
18. Contributions to the chemistry of tapiolite, manganotapiolite - A new mineral
19. 1 from Erajarvi compared with related Li-Be brittle micas
20. The solubility of Nb-Ta-Zr-Hf-W in granitic melts with Li and Li+F; constraints for mineralization in rare metal granites and pegmatites
21. Columbite solubility in granite melts: Implications for pegmatite genesis
22. Composition and structural state of columbitetantalite from the Harding pegmatite, Taos County, New Mexico
23. Compositional variation and structural state of columbite-tantalite in rare-element granitic pegmatites of the Preissac-Lacorne batholith, Quebec, Canada
24. Niobium-Tantalum oxide minerals from complex granitic pegmatites in the Moldanubicum, Czech Republic: Primary versus secondary compositional trends
25. Compositional trends in manganocolumbite from the Puklice I pegmatite, western Moravia, Czech Republic
26. Elbaite pegmatites in the Moldanubicum: A new subtype of complex pegmatites
27. 2)
28. The crystal structure of viitaniemiite
29. Composition of complex lepidolite-type granitic pegmatites and of constituent columbite-tantalite, Chedeville, Massif Central, France
30. A comparison of tantalum-niobium oxide assemblages in two mineralogically distinct rare-element granitic pegmatites, Black Hills, South Dakota
31. Pollucite and its alteration in Finnish pegmatites
32. Oxide minerals in the Separation Rapids rare-element granitic pegmatite group, northwestern Ontario
33. Evolution of Nb, Ta-oxide minerals in the Prasiva granitic pegmatites, Slovakia. I. Primary Fe, Ti-rich assemblage
34. Phosphatminerale aus dem Lithiumpegmatit von Viitaniemi, Erajarvi, Zentral-Finnland
35. The crystal chemistry of the tapiolite series