Standard Lemma guide

tonalite-trondhjemite-granodiorite

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈtoʊnəlaɪt ˈtrɒn(d)jəmaɪt ˌɡrænəʊˈdaɪəraɪt/

1

noun

Meaning 1

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.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: chemistry, geography, geology, mineralogy, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From tonalite + trondhjemite + granodiorite.

Across languages

Translations

3 source translations are retained for this English entry.

  • French: tonalite-trondhjémite-granodiorite — group of intrusive rocks with typical granitic composition containing a small portion of potassium feldspar
  • Portuguese: tonalito-trondhjemito-granodiorito — group of intrusive rocks with typical granitic composition containing a small portion of potassium feldspar
  • Spanish: tonalita-trondhjemita-granodiorita — group of intrusive rocks with typical granitic composition containing a small portion of potassium feldspar