Chemistry:Intermediate composition
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Short description: Type of igneous rock
 | This article relies largely or entirely on a single source. (June 2026) |
In igneous petrology, an intermediate composition refers to a rock whose chemical composition is intermediate between felsic and mafic compositions, typically containing about 52–63 wt% SiO2. It is not an IUGS recognized term.[1]
Common intermediate volcanic rocks include andesite and trachyandesite, while common intermediate plutonic rocks include diorite and granodiorite.
References
- ↑ Mcnair, B. (2024-01-28). "Intermediate Rock Composition and Examples". https://geologybase.com/intermediate-rocks/.
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