Resumen de Geomorphological mapping of the sismotectonic cave system of “a Trapa”, Ribadelouro - Tui (Galicia, Spain)
M. Vaqueiro, R. Costas Vázquez, R.M. Suárez
Up to now, the A Trapa system is the largest cave of granite blocks in the Iberian Peninsula, the second of Europe and the fifth worldwide. The cave is associated to a reverse fault, and its development, morphology and evolution seems to be influenced by the fault dynamics and the successive movements of blocks toward the axis of the valley bottom. The central sector of the cavity preserves a large pigotite flowstone, the oldest speleothem of this type up to the present. The different deposits allowed establishing minimum Late Holocene ages for the last evolution stage of the cave.
