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Folded rock, without breaking!
Along the steep banks of the Sieg, rock layers (greywacke banks) can often be seen that formed 420 - 360 million years ago in the Devonian period from a sea floor. After a long period of subsidence, elongated troughs were formed, into which the Devon Sea intruded. In these troughs, layers of mud and sand (sediments) were deposited as runoff from the continents. The sea floor sank in accordance with the rate of filling. When this deepening and widening of the sediment-filled sea trough came to a halt, the reverse process set in during the Carboniferous period (coal age, 360 - 300 million years ago). The edges of the sea trough began to move towards each other, pushing the now kilometer-thick, solidified layer packages into folds like a tablecloth. Our Rhenish slate mountains emerged from this mountain folding. The rock folding at Hövels shows on a small scale how a gigantic geological collision has shaped the landscape of an entire region.
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Rathausstraße 7557537 Wissen
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(0049)2742 9390
info@rathaus-wissen.de
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http://www.wissen.eu
