Quelques observations sur les rapports des filons a antimoine des environs du Collet-de-Deze (Lozere) avec leur environnement geologique

Abstract

Abstract Mapping of a sector [of France] situated south of Mont Lozere (central Cevennes) shows that antimony veins are localized in horizons rich in quartz, feldspars, and sometimes calcic minerals, and never in mica schists rich in phyllites. This control is valid only for stibnite veins, and not for lead-zinc veins. All of these massive layers include various sulfides, usually disseminated, sometimes in thin beds or small veinlets, without apparent connection to the veins or fissures. Problems concerning the origin of these disseminated sulfides and their relations to the veins are posed.