Definition of Trondhjemite. Meaning of Trondhjemite. Synonyms of Trondhjemite

- Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase...
- Tonalite–trondhjemite–granodiorite (TTG) rocks are intrusive rocks with typical granitic composition (quartz and feldspar) but containing only a small...
- 7 Ga. Much of the granitic rock belongs to the distinctive tonalite–trondhjemite–granodiorite family of rocks, which are characteristic of Archean continental...
- plutonic ultramafic rock containing olivine, pyroxene and plagioclase Trondhjemite – Light-colored intrusive igneous rock – A form of tonalite where plagioclase-group...
- 500-million-year time span and can be divided into two suites: The tonalite-trondhjemite-granodiorite (TTG) suite (emplaced approximately 3.5–3.2 Ga), and the...
- intruded by a distinctive group of granitic rocks called the tonalite-trondhjemite-granodiorite or TTG suite. These are the most voluminous rocks in the...
- ISSN 1752-0894. Mutanen, Tapani; Huhma, Hannu (2003). "The 3.5 Ga Siurua trondhjemite gneiss in the Archaean Pudasjärvi Granulite Belt, northern Finland" (PDF)...
- a complex of felsic magmatic rocks. These rocks are mostly tonalite, trondhjemite or granodiorite, types of rock similar in composition to granite (hence...
- later came to refer to quartz monzonite, and is now a deprecated term. Trondhjemite is an orthoclase-deficient variety of sodium-rich tonalite with minor...
- deposits including gold and copper. Drummond and Defant noted that Archean trondhjemites (which make up most of the ancient crust of continents) have similar...