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- A deeper look at the geology of diamonds
- Some facets of the Geology of Diamonds
- A harder look at the geology of diamonds
- Structural Geology by the Deformation numbers
- Cornwall: tin, pasties and the world
- The Grampian / Taconic orogeny in Ireland – when arcs attack
- Scandinavian crust now in Alaska!
- When continents rotate
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- On A deeper look at the geology of diamonds:
- Metageologist: Hi Chris, Maybe I could have phrased things better. The subducting slab is recent (100Ma) so... (1 hour 21 minutes ago)
- Chris: At first nice article but I think there are 2 inaccuracies in your article: 1. “The ultrabasic... (3 hours 9 minutes ago)
- Metageologist: I’ve replied on the Sci Am site, but some more thoughts here. The arguments for a... (7 days 16 hours ago)
- Torbjörn Larsson, OM: Ah, I meant to say that anoxygenic photosynthesis was consistent with the Isua finds. I... (7 days 18 hours ago)
- Torbjörn Larsson, OM: For some reason I had managed to notice most of the sulfur works, but not the diamond... (7 days 18 hours ago)
- russell: excellent read (10 days 21 hours ago)
- Karyl Halls: Magnificent goods from you, man. I’ve understand your stuff previous to and you’re... (14 days 23 hours ago)
- Kanalfrei: Thank you for this brilliant post . Will at present more stop by. Greetings from Cologne (21 days 0 hours ago)
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
Based on a work at all-geo.org.
Category Archives: metamorphism
Channel flow – hot rocks, big glaciers and the world’s tallest mountains
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 →
Categories: metamorphism, mountains, tectonics
Geospeedometry – how fast is metamorphism?
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 →
Categories: metamorphism
Metamorphism: open or closed?
Thermobarometry is the art of inferring Pressure and Temperature conditions by relating the composition of a metamorphic rock to a thermodynamic model, assuming chemical equilibrium was achieved. That’s the single sentence summary, but as usual, things are more complicated if … Continue reading →
Categories: metamorphism
Metamorphism: evolving ideas
‘Ontogeny recapitulates phylogeny’ is such a lovely phrase. It was coined as a biological concept, and is now somewhat discredited. The idea was that as an organism develops as an embryo it passes through stages of growth corresponding to stages … Continue reading →
Categories: metamorphism
