New data on the geomechanical properties of the highly cohesive volcanic rocks of the
Canary Archipelago and their role in the flank stability on oceanic islands are provided in
this work. On the basis of the textural and petrological features, a preliminary classification of
rocks, grouped into lithotypes, was carried out. This classification includes vesicular and non
vesicular basalts, trachybasalts, trachytes, phonolites, welded and non welded ignimbrites.
Strength and strain-related features are summarized here for each distinctive lithotype …