Category Archives: mountains

Scandinavian crust now in Alaska!

The face of the earth is ever changing. Plate tectonics is slowly but surely rearranging the locations and inter-connections of continents. However knowing this in the abstract doesn’t prepare you for the awed surprise of discovering that a section of … Continue reading

Categories: mountains, tectonics

Cratons – old and strong

Cratons are pieces of continents that have been stable for a over a billion years. As earth’s plates drift along, mountains periodically rise and fall, plate boundaries appear and disappear. But cratons are like great-grandmothers at family gatherings, while younger … Continue reading

Categories: eclogites, mountains, subduction, tectonics

Erosion makes mountains beautiful

The thing that makes mountains so beautiful and fascinating,is not so much their height as their steepness. Climbers and trekkers flock to the High Himalaya, not to get altitude sickness but for the grandeur of the landscape, the experience of … Continue reading

Categories: Glacial, mountains, tectonics

Mantle support of topography – a swell idea

Why are some bits of the earth higher than others? Finding mountains near plate boundaries is easy to explain – various forms of plate collision cause the crust to thicken and the surface to rise. What about Southern Africa? Reaching … Continue reading

Categories: England, mountains, Scotland, sediments, tectonics