Different types of HP mélange and broken formation in the northern Monviso Meta-ophiolite Complex (Inner Western Alps, NW Italy)

In the Western Alps the superposition of tectonic and/or tectonometamorphic events, and mineral transformations, strongly concur in obscuring the original prevailing processes of formation of block-in-matrix structures. We document in this study the occurrence and nature of different types of block-in-matrix structures (i.e. sedimentary and tectonic melanges, and broken formations), formed at the plate interface between continental (i.e. the...