Abstract
Lawton talks about the Zanclean flood in the Strait of Gibraltar. The Zanclean flood--named after the geological age in which it happened--probably started slowly, gradually filling about 10 per cent of the basin over thousands of years. For some reason the rate of inflow suddenly soared, filling the basin completely in the space of a few months, raising the Mediterranean by about 10 meters a day. Every second a billion cubic meters of water roars past, 5,000 times more than the Amazon today. The sight is awe-inspiring. In all, 3 million cubic kilometres of Atlantic water floods in, gouging a channel 250 meters deep and 200 kilometers long that can still be seen on the bed of the Strait of Gibraltar.
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