Grands gisements d'albite dans le massif métamorphique de Menderes (Turquie occidentale)

Albite deposits of western Turkey occur within gneiss in the basal part of the Menderes Metamorphic Massif. The most important deposits are located along the Karadere mineralization zone, within an anticlinorium of 15-km length with a direction of N10–30E. Detailed study of the four deposits forming the northern part of this zone has allowed us to discover large reserves of 100.65 million tons, of which 78% is composed of high-grade ore with a content of 10.27% Na₂O. The remainder is formed by low-grade ore with 8.37% Na₂O and 1.11% K₂O and mixed ore with 4.61% Na₂O and 4.05% K₂O, with reserves of 14.4 and 8.2 million tons, respectively. To cite this article: U. Çak?r, C. R. Geoscience 337 (2005).