PALEOMAGNETIC ROTATIONS IN OPPOSITE SENSES IN SOUTHEASTERN SPAIN

20 volcanic and 3 sedimentary sites of upper Miocene age were sampled in the Cabo de Gata region in southeastern Spain. Palaeomagnetic and r ockmagnetic investigations yielded useful results in 15 volcanic and 1 sedimentary site. Clockwise and anticlockwise block rotations of adja cent blocks could be observed. The age of these rotations is younger t han Tortonian. Deformation in the eastern part of the Betics seems to follow a different pattern than in the central and western part of the Sub-betic. This behaviour can be related to the crustal structure in the eastern Betics.