Author Archives: Metageologist

A new paradigm for Barrovian metamorphism?

The phrase ‘new paradigm’ is a little shop-worn but it still catches the eye. To see it used in a “discussion and reply” on a dry-looking metamorphic petrology paper is really something unusual. Tracing through these articles really shows how … Continue reading

Categories: eclogites, metamorphism, mountains, Scotland, tectonics

Metamorphic petrology: under pressure and getting stressed?

High pressure (HP) terranes are areas containing eclogites and other eclogite-facies rocks found within many mountains belts, including the Himalaya and the Alps. HP rocks were¬†metamorphosed at extreme pressures, up to 3 or even 4 billion Pascals (or GPa. Atmospheric … Continue reading

Categories: eclogites, metamorphism, mountains, subduction, tectonics

Dinosaurs and the dangers of pedantism

Did you click here because of the word pedantism in the title? If so, you’ll like this (perhaps) apochryphal exchange between a married couple I know. Person A: ” You’re always correcting me! Your pedantism is really getting me down.” … Continue reading

Categories: etymology

Six amazing facts about what’s under your feet

Just 100s km away from you are right now there is a place where rocks can flow, where once-living matter is turned in jewels, from where¬†deadly plumes once killed nearly all life on earth. We can never visit this place … Continue reading

Categories: Deep earth, diamonds, subduction