Hercynian transpressional tectonics at the southern margin of the Central Iberian Zone, west Spain

摘要: The boundary between the Central Iberian and Ossa-Morena zones, in south-central Spain, occurs within Badajoz–Cordoba shear zone. spatial temporal relationships of structures across La Codosera syncline, located zone just to north zone, demonstrate a progressive increase strike-slip towards Badajoz Within region Precambrian Cambrian rocks were subject pre-Ordovician tilting open folding, accompanied by local faulting veining, but no cleavage. These, together with overlying Palaeozoic subsequently affected Hercynian ductile deformation, which produced steeply inclined folds, cleavage faulting. Intense left-lateral shearing on southern limb syncline augen, bands, sub-horizontal stretching lineation, boudinage, variably oriented folds steep faults, whereas northern is characterized folding thrusting transpressional regime, limited net northward transport. Late N–S NE–SW faults overprint early granites. These rotate NW-SE trend right-lateral displacement as result domino or bookshelf can be attributed continued motion along