The authorSimon Wellings
- Scars, acne and others: circles on the ground
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- Looking from the sky at diamonds
- Great Geology in Google Maps: mapping from above
- Hot spot volcanoes: no plumes required?
- Great Geology in Google Maps: dunes
- Tasting the earth: mantle geochemistry
- Metamorphic petrology under stress: round 2
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Category Archives: metamorphism
Back in August I wrote about an extremely important paper by John Wheeler of Liverpool University called “Dramatic effects of stress on metamorphic reactions”. This uses a theoretical approach to show that differential stress (squashing rocks) is a very important … Continue reading →
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 →
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 →
The greatest achievement of the generation of Earth Scientists now retiring is the concept of plate tectonics. The insight that the earth’s surface is made up of rigid plates that move has shed light on all aspects of Earth Science, … Continue reading →