- form of oligoclase.
Trondhjemites that
occur in the
oceanic crust or in
ophiolites are
usually called plagiogranites.
Trondhjemite is
common in Archean...
- PMID 33664326. Barker, F. (1979), "
Trondhjemite: Definition,
Environment and
Hypotheses of Origin",
Trondhjemites, Dacites, and
Related Rocks, Developments...
- upper-amphibolite facies. The
Nuvvuagituq Belt is
bounded by
Eoarchean tonalites,
trondhjemites and
granodiorite aged
around 3660 Ma, and
further surrounded by younger...
- The TTG
suite (emplaced
approximately 3.5–3.2 Ga)
contains tonalites,
trondhjemites and granodiorites; and the GMS
suite (emplaced
approximately 3.2–3.1...
-
Complex is a
heterogeneous ****emblage of
foliated to
gneissic tonalites,
trondhjemites, granodiorites, and
granites which contains minor quartz-diorites, diorites...
- 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...
- "Partial
melting of amphibolite/eclogite and the
origin of
Archean trondhjemites and tonalites".
Precambrian Research. 51 (1–4): 1–25. Bibcode:1991PreR...
- 7 Ga. Much of the
granitic rock
belongs to the
distinctive tonalite–
trondhjemite–granodiorite
family of rocks,
which are
characteristic of
Archean continental...
-
deposits including gold and copper.
Drummond and
Defant noted that
Archean trondhjemites (which make up most of the
ancient crust of continents) have similar...
