The authorSimon Wellings
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- On Channel flow – hot rocks, big glaciers and the world’s tallest mountains:
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- Daf: Lovely stuff Si – and many of these features can be recognized in what is now the marine... (19 days 0 hours ago)
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Based on a work at all-geo.org.
Category Archives: metamorphism
Fifty kilometres is not far. World-class marathon runners run 42km in a little over 2 hours. They only move along the earth’s surface though. Getting to 50 kilometres below your feet is a different thing entirely. It’s a place of … Continue reading →
The Moine, a set of sedimentary rocks found in furthest north-west Scotland have enjoyed at least three cycles of metamorphism and deformation. My only sample from here is a migmatitic gneiss, so when I heard about people studying sedimentology in … Continue reading →
Leonardo da Vinci, famed artist and Renaissance “Renaissance Man” made some interesting remarks about Geology. When he looked at rocks in the Alps containing fossil molluscs, it was clear to his trained eye that the fossils were near identical to … Continue reading →
Timescales in Geology are rather variable, to say the least. The earth has been around for billions of years so things can go sloooow and still be significant, like the build-up of oxygen produced by life. On the other hand, … Continue reading →