tonalite-trondhjemite-granodiorite en · NOUN
Pronunciation
- /ˈtoʊnəlaɪt ˈtrɒn(d)jəmaɪt ˌɡrænəʊˈdaɪəraɪt/
Etymology
From tonalite + trondhjemite + granodiorite.
Meanings
- (uncountable) A group of silica-rich intrusive igneous rocks that mainly formed in Earth’s early history. They are considered some of the primary building blocks of the oldest continental crust and are typically produced by partial melting of hydrated basalt deep in the crust or mantle.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| TTG | Abbr=Yes | lexicographic |
Translations (3)
fr tonalite-trondhjémite-granodiorite (group of intrusive rocks with typical granitic composition containing a small portion of potassium feldspar) · pt tonalito-trondhjemito-granodiorito (group of intrusive rocks with typical granitic composition containing a small portion of potassium feldspar) · es tonalita-trondhjemita-granodiorita (group of intrusive rocks with typical granitic composition containing a small portion of potassium feldspar)