Southern Spain Geodynamics and comparable areas of the western Mediterranean
Автор: Westmorland Geological Society
Загружено: 2021-10-24
Просмотров: 661
Описание: Southern Spain, southern Italy and the Aegean region are places familiar to many through holiday visits but few realise how dynamic these places are at the present day and in the not so distant geological past (Miocene through Recent). Southern Spain (Andalucia) consists of uplifted mountain chains (sierras) where metamorphic rocks are exposed, separated by intramontane sedimentary basins. These have resulted from west-directed lithospheric stretching by about 120 km and lie in a wedge-shaped region bounded by continental transform faults. These are unlike ‘conventional’ transform faults because the lithosphere on one side is being stretched at a rate different from the other side (stretching transforms). This talk will explain the field investigations that lead to these conclusions and draw attention to the same processes taking place in southern Italy and the Aegean region and accounting for seismicity and volcanism.
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