• Thumbnail for Tonalite–trondhjemite–granodiorite
    Tonalitetrondhjemitegranodiorite (TTG) rocks are intrusive rocks with typical granitic composition (quartz and feldspar) but containing only a small...
    20 KB (2,194 words) - 17:44, 23 March 2024
  • Thumbnail for Trondhjemite
    occurring in conjunction with tonalite and granodiorite as the TTG (tonalitetrondhjemitegranodiorite) orthogneiss suite. Trondhjemite dikes also commonly form...
    2 KB (178 words) - 18:01, 22 July 2023
  • Thumbnail for Tonalite
    monzonite, and is now a deprecated term. Trondhjemite is an orthoclase-deficient variety of sodium-rich tonalite with minor biotite as the only mafic mineral...
    4 KB (390 words) - 11:10, 1 October 2023
  • Thumbnail for Dharwar Craton
    zones. The lithologies of the Dharwar Craton are mainly TTG (Tonalite-trondhjemite-granodiorite) gneisses, volcanic-sedimentary greenstone sequences and calc-alkaline...
    39 KB (3,536 words) - 19:29, 21 March 2023
  • Thumbnail for Barberton Greenstone Belt
    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...
    16 KB (2,022 words) - 23:25, 17 August 2023
  • Thumbnail for Canadian Shield
    Ga. Much of the granitic rock belongs to the distinctive tonalitetrondhjemitegranodiorite family of rocks, which are characteristic of Archean continental...
    21 KB (2,234 words) - 13:21, 1 April 2024
  • Thumbnail for Metamorphic rock
    intruded by a distinctive group of granitic rocks called the tonalite-trondhjemite-granodiorite or TTG suite. These are the most voluminous rocks in the craton...
    37 KB (4,414 words) - 09:37, 11 March 2024
  • Thumbnail for Eoarchean geology
    abundance of Archean felsic volcanic rocks, including tonalite, trondhjemite and granodiorite (TTG) series rocks,[failed verification] with minor granulite...
    35 KB (4,087 words) - 10:53, 29 November 2023
  • Thumbnail for Kaapvaal Craton
    by magmatic activity leading to the formation of Archaean Tonalite-Trondhjemite-Granodiorite (TTG) such as the Sand River Gneisses and the Bulai Granite...
    10 KB (1,289 words) - 04:08, 30 January 2023
  • greenstone belts, sedimentary basins, regional granitoid-tonalite-trondhjemite-granodiorite (TTG) plutons, and large shear zones. The craton is overlain...
    23 KB (2,596 words) - 17:32, 9 March 2023