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- W560975865 abstract "Abstract The demand for high-tech metals such as Li, Ti, Co, Ga, Ge, Nb, In, Sb, Ta, Pd, Pt, and rare earth elements (REE) has increased in recent years especially in green energy technology. In this chapter, we concentrate on REE, titanium, and lithium deposits, which are among the most important high-tech metal deposits in Finland. The known REE deposits are associated with carbonatite dikes at Sokli, alkaline gneisses at Katajakangas, and monazite granites at Kovela. The Korsnas Pb deposit contains rare earth elements in apatite and monazite, probably due to enrichment by hydrothermal and weathering processes. In the Sokli carbonatite complex, REEs are concentrated in late magmatic carbonatite veins in the surrounding fenite area. The Katajakangas Nb-Y deposit is enriched in heavy REE in zircon, bastnaesite, and columbite. At Kovela, late-orogenic S-type granite contains monazite with thorite inclusions. The Otanmaki V-Ti-Fe, Koivusaarenneva Ti, Kauhajoki Ti-P-Fe, and Karhujupukka Fe-Ti-V deposits are associated with magmatic mafic layered intrusions. A common feature is that ilmenite and magnetite occur as individual grains and thus can be separated economically. Pure ilmenite and magnetite grains are primary magmatic minerals at Koivusaarenneva and Kauhajoki, but metamorphic at Otanmaki and Karhujupukka. In the future, these gabbro-hosted deposits could be important producers of Ti, Fe, V, and P with low environmental impact. The Kaustinen Li province contains several economically interesting albite-spodumene pegmatite deposits such as at Lantta, Emmes, Outovesi, Syvajarvi, Leviakangas, and Rapasaaret, and includes Li mineral resources for several decades. In the Somero-Tammela Li province with albite-petalite-spodumene pegmatites, exploration activity has been smaller, although the deposits contain high-quality petalite and spodumene in economic concentrations." @default.
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- W560975865 date "2015-01-01" @default.
- W560975865 modified "2023-10-18" @default.
- W560975865 title "High-Tech Metals in Finland" @default.
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- W560975865 doi "https://doi.org/10.1016/b978-0-12-410438-9.00023-6" @default.
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