Author Archives: Metageologist

Volcanoes and mass extinctions – tracking a killer

Look in a bookshop and see how many shelves are taken up with murder mysteries. There’s little that is as compelling as the idea of a dead body on the ground and a search to find the culprit. I’m going … Continue reading

Categories: impacts, sediments

Ultrafast eclogitisation through overpressure

My blogging torpor has been ended by a super-interesting new paper that links together many of my favourite topics. It includes eclogites, metamorphic petrology, ultra-fast metamorphism, determining timescales via diffusion profiles, tectonic overpressure and even the Grampian-Taconic orogeny and opens up new … Continue reading

Categories: eclogites, metamorphism, tectonics

The Himalayan mountains: flow and fracture

Earth science departments are home to three styles of working, each of which tries to answer similar questions, but from very different perspectives. First we have the field geologists. Armed with field gear and a hammer, they gather data from actual … Continue reading

Categories: Himalaya, metamorphism, mountains, tectonics

Speed of metamorphism: cooling down

A while ago, I asked Twitter for suggestions of topics for future posts. A great one came from Brian Romans, a Prof at Virginia Tech and a long-standing pillar of the online geoscience community: How fast can rocks undergoing metamorphism be … Continue reading

Categories: Ireland, metamorphism, mountains, tectonics