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: It can generate ~100MHz square waves and you can connect up an antenna, which is *basically* what a radio transmitter would do but stupider and worse.
gollark: Yes, a clock or something.
gollark: A quirk of the raspberry pi means it can transmit FM radio with horrible interference because it can only broadcast square waves or something, because of happening to have a somewhat adjustable ~100MHz clock exposed on external pins or something.
gollark: Technically I *could* transmit FM radio. Also technically, I can't transmit it at any significant power and doing so would be illegal.
gollark: idea: replace osmarks internet radio™ with a constant 440Hz buzzing noise.
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.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.