Spatial distribution of mineralisations of niobium in Europe and respective genetic types.

The map sheet: 1. Esquisse de la couverture végétale du Tchad en relation avec les sols au sud du 16e parallèle. Scale of 1:1 500 000. Date of publication: 1970.

Overview map showing the approximate extent of the key Phosphate metallogenic areas in land and European seas.

The map sheet: 1. Esquisse hydrologique. Scale of 1:1 500 000. Date of publication: 1966.

Spatial distribution of occurrences of Cobalt in Europe and respective genetic types.

Overview map showing the approximate extent of the key Phosphor metallogenic areas in Europe.

Overview map showing the approximate extent of the key Lithium metallogenic areas in Europe.

Spatial distribution of occurrences of Graphite in Europe and respective genetic types.

Spatial distribution of mineralisations of tantalum in Europe and respective genetic types.

Spatial distribution of occurrences of Co in European land and sea and respective genetic types.