Conodont Biostratigraphy of the Late Devonia- Early Carboniferous Rocks of the South Central Cantabrian Cordillera

Decouverte de Carbonifere Inferieur Marin ( Viseen et Namurien a ) a l'Est du Col du Shebar, Dans le Versant Meridional de l'Hindou Kouch en Afghanistan

A Map of the Central Elburz

Lithium Minerals

Seismic Waves Reflected From Velocity Gradient Anomalies Within the Earth's Upper Mantle