Metamorphic core complexes of Cordilleran type in the Cyclades, Aegean Sea, Greece

摘要: The islands of Ios and Naxos in the Cycladic archipelago, Greece, contain elongate domes over which a pervasive north- to north-northeast–stretching lineation is warped. These may be metamorphic core complexes Cordilleran type, involving middle-crustal rocks drawn upward outward from underneath sedimentary basins now 100 km south. From ca. 25 Ma onward, during uplift, crystalline exposed on were deformed noncoaxially deeper levels major shallow-dipping ductile shear zone. This zone have connected with low-angle normal faults its upper levels, because it probable that later history involved being dragged out under stretching fracturing plate composed mainly unmetamorphosed ophiolite suite rocks. model can extended explain exhumation high-pressure–low-temperature Crete, which, Cyclades, forms distended paired belt separated by an active basin.