Security of supply of a number of raw materials is of concern for the European Union;
foremost among these are the rare earth elements (REE), which are used in a range of …

Carbonatites and alkaline-silicate rocks are the most important sources of rare earth
elements (REE) and niobium (Nb), both of which are metals imperative to technological …

Alkaline igneous complexes host deposits of rare earth elements (REE), which represent
one of the most economically important resources of heavy REE and Yttrium (Y). The hosts …

Phosphorus is the central ingredient in fertilizer that allows modern agriculture to feed the
world's population. This element, also critical in a host of industrial applications, is a …

Peralkaline igneous rocks are defined by a molar (Na+ K)/Al ratio> 1 and are subdivided into
miaskitic and agpaitic varieties depending on their mineralogy. In the more common …

Abstract Despite Nb and Ta being considered as 'geochemical twins', most Ta mineral
deposits are associated with muscovite-bearing peraluminous granites and related …

Petrological and geochemical observations of pegmatites in the Strange Lake pluton,
Canada, have been combined with numerical simulations to improve our understanding of …

Intracontinental alkaline complexes and carbonatites commonly occur in rift-related settings,
best exemplified by the Cenozoic–present day East African Rift System. Examples in the …

The rare earth elements are unusual when defining giant-sized ore deposits, as resources
are often quoted as total rare earth oxide, but the importance of a deposit may be related to …

Highly evolved alkaline/peralkaline igneous rocks host deposits of rare earth elements
(REE), including Y as well as Zr, Hf, Nb, Ta, U, and Th. The host rocks spanning from silica …