Reef limestone clasts crop out, along with basaltic clasts and limestone clasts of other facies, in a VCM breccia. This unit is in tectonic contact with recrystallized massive limestone slabs. Reef limestone crops out in VCM breccia. The reef framework volume is relatively low (approximately 30%) but sponges are comparatively abundant (21%) and Tubiphytes are rare. Sponge-dominated reefs.