gisement filonien mésothermal

CONT: Quartz-Carbonate Vein Gold Deposits in Metamorphic Terranes. ... This type of gold deposit consists dominantly of quartz-carbonate veins in metamorphosed volcanic, sedimentary and granitoid rocks. Such deposits are commonly referred to as mesothermal vein deposits in the literature, in part after the classification of Lindgren (1933); ...
CONT: Of paramount importance are the abundant quartz-carbonate vein deposits that typify greenstone terrains of all ages; because their inferred conditions of formation are compatible with the low to medium metamorphic grade of their host rocks, these deposits are also commonly referred to as mesothermal vein deposits.