Rythme sedimentaire et mineralisations stratiformes dans l'environnement recifal

During the International Sedimentological Congress of Heidelberg (Germany), the author — in collaboration with his college J.Pel of the University of Liege (Belgium) — has emphasized the influence of the sedimentary rhythm about the location of the stratiform ore deposits in some facies of the reef environment and has proposed a first synthesis of the relations between several stratiform deposits of varying mineralogy and different ages also associated with reef complexes. In this paper, the author illustrates the sedimentological method used previously in resting principally on a comparative analysis of the ore conditions which characterize the stratiform lead zinc deposits of Reocin (Spain), Eastern Alps (Bavaria, Austria), Pine Point (Canada) and S. E. Missouri (United States).