tonalite-trondhjemite-granodiorite
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English[edit]
Noun[edit]
tonalite-trondhjemite-granodiorite
- Group of intrusive rocks with typical granitic composition, but containing only a small portion of potassium feldspar.
- Synonym: TTG
Further reading[edit]
- Tonalite–trondhjemite–granodiorite on Wikipedia.Wikipedia