Bennachie Forum > Is bennachie an extinct volcano?

Has bennachie ever been a volcano?

August 22, 2012 | Unregistered CommenterYvonne

In spite of its volcano like shape the Mither Tap has never been a volcano nor has the rest of Bennachie. Four hundred million years ago, the Bennachie range was formed by an enormous mass of molten rock pushing upwards in the earth’s crust and cooling slowly under a mass of sediment which has been gradually worn away to expose the granite which we know today as rock darkened with age on the outside but still beautifully pink in freshly exposed surfaces. The range was possibly two or three times its current height with great jagged peaks, but in comparatively recent times (within the last million years) enormous ice sheets, ten thousand feet thick and more, covered the landscape. As they moved they tore away the rock flattening the surface to leave a granite mass 8 km long by 6 km wide. Further glaciations and the action of wind, frost and water have had some minor etching effect giving us the outline which we now know so well.

August 24, 2012 | Unregistered CommenterJ cumberbirch

This doesn't help my project at all this sucks

March 18, 2017 | Unregistered CommenterGrace