@article{fdi:010083581, title = {{G}ranitic pegmatites as sources of strategic metals}, author = {{L}innen, {R}. {L}. and {V}an {L}ichtervelde, {M}arieke and {C}erny, {P}.}, editor = {}, language = {{ENG}}, abstract = {{R}are-element granitic pegmatites are well recognized for the diversity and concentrations of metal ores that they host. {T}he supply of some of these elements is of concern, and the {E}uropean {C}ommission recently designated metals such as tantalum and niobium as "critical materials" or "strategic resources." {F}ield relationships, mineral chemistry, and experimental constraints indicate that these elements are concentrated dominantly by magmatic processes. {T}he granitic melts involved in these processes are very unusual because they contain high concentrations of fluxing compounds, which play a key role at both the primary magmatic and metasomatic stages. {I}n particular, the latter may involve highly fluxed melts rather than aqueous fluids.}, keywords = {strategic ; rare element ; fractionation ; metasomatism ; ore genesis}, booktitle = {}, journal = {{E}lements}, volume = {8}, numero = {4}, pages = {275--280}, ISSN = {1811-5209}, year = {2012}, DOI = {10.2113/gselements.8.4.275}, URL = {https://www.documentation.ird.fr/hor/fdi:010083581}, }