Metasedimentary rock
In geology, metasedimentary rock is a type of metamorphic rock. Such a rock was first formed through the deposition and solidification of sediment. Then, the rock was buried underneath subsequent rock and was subjected to high pressures and temperatures, causing the rock to recrystallize. The overall composition of a metasedimentary rock can be used to identify the original sedimentary rock, even where they have been subject to high-grade metamorphism and intense deformation.[1]
Types of metasedimentary rocks
| Sedimentary rock | Metamorphic equivalent |
|---|---|
| Pure Limestone | Marble[2] |
| Impure (Silica or clay-rich) Limestone | Calc–silicate rock[2] |
| Mudstone | Pelite |
| Siltstone | Semi-pelite |
| Sandstone | Psammite, Quartzite[2] |
| Conglomerate | Metaconglomerate |
| Shale | Slate |
gollark: The thing I was looking at involved sticking somewhat general-purpose computers into the RAM chips, not just having dedicated analog computers for things.
gollark: I've heard about more general ways to achieve similar sorts of thing, like sticking HBM stuff onto GPUs and some computing-in-memory thing.
gollark: And brains are annoying to do things with since they're not understood very well and can't be copied/run in simulation very easily.
gollark: Running neural nets in analog hardware would also be kind of disadvantageous, since you couldn't then copy them very easily or run them on new stuff.
gollark: I'm sure there are lots of widely used ones which are.
See also
- Metavolcanic rock – Metamorphic rock from a volcanic precursor
References
- Vernon, R.H. & Clarke, G.L. 2008. Principles of metamorphic petrology, Cambridge University Press, 460pp.
- Arndt, Nicholas (2011). "Metasediments". Encyclopedia of Astrobiology. Springer, Berlin, Heidelberg. pp. 1021–1022. doi:10.1007/978-3-642-11274-4_973. ISBN 978-3-642-11271-3.
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