Category Archives: sediments

The South Mayo Trough: tiny grains record huge events

Sedimentary basins have been described as ‘tape recorders’ that preserve evidence of past events. Some sedimentary basins contain ‘recordings’ of grand tectonic events – plate collisions and mountain building. The information is stored as subtle but compelling patterns in the … Continue reading

Categories: Ireland, metamorphism, sediments, tectonics

Fracking great science from the British Geological Survey

Fracking is rightly a major political issue. In Britain this is topical as the government has just released a technical report showing that very large volumes of natural gas are locked into rocks beneath northern England. As a tax-payer whose … Continue reading

Categories: England, sediments

Dalradian – a Celtic Supergroup

Geology is such a great thing to study because it involves making so many connections through time and space, switching scales from the cosmic to the atomic. This means that challenge for this series of posts about the geology of … Continue reading

Categories: Ireland, Scotland, sediments, 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