original question: Which rock type has the parent rock type of [Trondhjemite]?
answer: igneous rock
answer type: Rock type.
auxiliary information: Trondhjemite is a leucocratic intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites. Trondhjemite is common in Archean terranes occurring in conjunction with tonalite and granodiorite as the TTG orthogneiss suite. Trondhjemite dikes also commonly form part of the sheeted dike complex of an ophiolite.
The parent rock type of which rock type is [Trondhjemite]?