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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:
- Chris: Hi Simon thank you for your fast reply, maybe the point is that you mean here “This portion of... (1 day 6 hours ago)
- Metageologist: Hi Chris, Maybe I could have phrased things better. The subducting slab is recent (100Ma) so... (1 day 9 hours ago)
- Chris: At first nice article but I think there are 2 inaccuracies in your article: 1. “The ultrabasic... (1 day 11 hours ago)
- Metageologist: I’ve replied on the Sci Am site, but some more thoughts here. The arguments for a... (9 days 0 hours ago)
- Torbjörn Larsson, OM: Ah, I meant to say that anoxygenic photosynthesis was consistent with the Isua finds. I... (9 days 2 hours ago)
- Torbjörn Larsson, OM: For some reason I had managed to notice most of the sulfur works, but not the diamond... (9 days 2 hours ago)
- russell: excellent read (12 days 5 hours ago)
- Karyl Halls: Magnificent goods from you, man. I’ve understand your stuff previous to and you’re... (16 days 7 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
Oceanic crust – down to the core
Almost all of what I write about in this blog concerns only 1% of the earth’s volume. All crust, all sedimentary rocks, the glories of mountain building, all occupy an insignificant portion of the earth. It’s the only bit we … Continue reading →
Categories: eclogites, metamorphism, subduction
Oceanic crust – that sinking feeling
Some rocks lead a quiet life. Stable parts of continental crust just sit there for billions of years, doing nothing. In the oceans things are much more dynamic. Live fast, die young, stay pretty is the motto of oceanic crust. … Continue reading →
Categories: eclogites, metamorphism, subduction, tectonics
Eclogite: mysterious visitor from the deep
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 →
Categories: eclogites, metamorphism, subduction, tectonics
The biggest pile of sand the world has ever seen
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 →
Categories: metamorphism, Scotland, sediments
