ABSTRACT
As ophiolites are associated with large-scale overthrusts, tectonic mélanges can be formed in the base and at the front of such megastructures. These ophiolitic mélanges contain ophiolitic rocks and other rocks of various paleogeographic origins; the whole entity being in considerable tectonic disorder with chaotic masses where blocks and packages of various sizes of any kind or rock (sedimentary or volcanic) “float” inside a sheared soil like mass.
