Preikestolen (Preacher’s Pulpit)Preikestolen is a 604 m high granite cliff in Rogaland, Norway, that
Preikestolen (Preacher’s Pulpit)Preikestolen is a 604 m high granite cliff in Rogaland, Norway, that overlooks the valleys and mountains. This cliff has been a popular tourist attraction for years, recently however significant improvement works have occurred to the paths leading to it, making it more accessible. However, how did this impressive feature form?If you look closely at the photo, you can see it has an odd angular shape that appears to jut out from the usual shape of cliffs. This angular feature formed when water from a glacier entered crevices in the rock. Through freeze-thaw weathering, angular blocks were broken off the cliff and carried away by the glacier. The overhang structure is due to the break off of these angular blocks. This erosion is likely to have taken place during the ice age, due to the large and wide-spread glaciers at that time. The crevices and cracks as aforementioned did not all lead to the breaking of the rock (or else the cliff would be a sheer face). Instead some cracks remain, meaning the plateau eventually will collapse due to its weight.~SAhttp://bit.ly/1HhQOc9 by Aconcagua -- source link
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