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Granitoid

A rock classification type

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Photos of Granitoid (279)Recorded Ages and Analyses Discuss Granitoid

Granitoid Gallery Search Photos of Granitoid

Edit Granitoid Add Synonym Add Sub-type (rock)Edit CIF structures Clear Cache

Rapakivi granite

Ylämaa area, Lappeenranta, South Karelia, Finland

Granite

D. João quarry, Monforte, Monforte, Portalegre, Portugal

Pegmatite

Odra alluvial deposits, Opole Voivodeship, Poland

Rapakivi granite

Ylämaa area, Lappeenranta, South Karelia, Finland

Granite

D. João quarry, Monforte, Monforte, Portalegre, Portugal

Pegmatite

Odra alluvial deposits, Opole Voivodeship, Poland

Rapakivi granite

Ylämaa area, Lappeenranta, South Karelia, Finland

Granite

D. João quarry, Monforte, Monforte, Portalegre, Portugal

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About GranitoidHide

A granitoid is a coarse grained igneous rock composed mostly of quartz, K-feldspar (alkali-feldspar) and plagioclase, with 20-60% quartz on the QAPF diagram. It usually contains minor micas and/or amphiboles. Most commonly granite and granodiorite.

Unique IdentifiersHide

Mindat ID:

48126

Long-form identifier:

mindat:1:1:48126:5

Similar NamesHide

Granaadid	A synonym of Garnet Supergroup
Granatit	A synonym

Classification of GranitoidHide

Rock
- Igneous rock
  - Normal crystalline igneous rock
    - Coarse-grained ("plutonic") crystalline igneous rock
      - Granitoid

Rocks in sections 2 (alkali-feldspar granite), 3 (granite), 4 (granodiorite) and 5 (tonalite) on the QAPF diagram.
Section 3 can be divided into 3a (syenogranite) and 3b (monzogranite).

Sub-divisions of GranitoidHide

Granitoid

Mineralogy of GranitoidHide

Essential minerals - these are minerals that are required within the classification of this rock:

Silica > Quartz

SiO₂

Non-essential minerals - these minerals are common, sometimes major components, but are not always present:

Amphibole	A petrological term for Amphibole Supergroup.
Feldspar > Alkali Feldspar	A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
Feldspar > Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mica	A petrological term for Mica Group.

View all 98 analyses with additional filters.

Age distributionHide

Recorded ages:

Neochaotian to Neogene : ~4600 Ma to 7.1 ± 0.2 Ma - based on 98 recorded ages.

Sample ages:

Sample ID	Recorded age	Geologic Time	Dating method
1	At least 145 Ma	Late Jurassic
2	50.1 to 49 Ma	Eocene	Rb-Sr
3	56.6 ± 1.0 Ma	Paleocene	K-Ar
4	58.7 ± 1.6 Ma	Paleocene	Rb-Sr whole rock
5	84.9 Ma	Late/Upper Cretaceous	Rb-Sr whole rock
6	122 ± 5 Ma	Early/Lower Cretaceous	Rb-Sr whole rock
7	129 ± 1 Ma	Early/Lower Cretaceous	U-Pb
8	196 ± 4 Ma	Early Jurassic	Rb-Sr whole rock
9	236 ± 5 to 194 ± 16 Ma	Mesozoic	Rb-Sr
10	253 Ma	Lopingian
11	277 ± 3 Ma	Cisuralian	Rb-Sr isochron
12	286 ± 3 Ma	Cisuralian	Rb-Sr whole rock
13	302 ± 9 Ma	Pennsylvanian	Rb-Sr
14	542 ± 3 Ma	Ediacaran	207Pb/206Pb
15	595 ± 20 Ma	Ediacaran	Rb-Sr seven-point whole rock
16	1301 to 1241 Ma	Ectasian	K-Ar
17	2500 to 541 ± 1.0 Ma	Proterozoic
18	4000 to 2500 Ma	Archean
19	~4600 to 541 ± 1.0 Ma	Precambrian
20	~4600 to 541 ± 1.0 Ma	Precambrian

Sample references:

ID	Locality	Reference	Notes
1	Socotra Island, Aden Governorate, Yemen	doi.org/10.1144/gsjgs.125.1.0413
2	Gigye-Gyeongju granite, Gyeongju City, North Gyeongsang Province, South Korea	Hwang, B. H., McWilliams, M., Son, M., & Yang, K. (2007). Tectonic implication of A-type granites across the Yangsan fault, Gigye and Gyeongju areas, southeast Korean Peninsula. International Geology Review, 49(12), 1094-1102.
3	Mourne Mountains, County Down, Northern Ireland, UK	EVANS, A. L., FITCH, F. J., & MILLER, J. A. (1973). Potassium-argon age determinations on some British Tertiary igneous rocks. Journal of the Geological Society, 129(4), 419-438.
4	Isle of Lundy, Torridge, Devon, England, UK	THORPE, R. S., TINDLE, A. G., GLEDHILL, A. (1990) The Petrology and Origin of the Tertiary Lundy Granite (Bristol Channel, UK) Journal of Petrology, 31 (6) 1379-1406 doi:10.1093/petrology/31.6.1379
5	Gejiu Sn-polymetallic ore field, Gejiu City, Honghe, Yunnan, China	Zhongxin, Y. U. A. N., & Ge, B. A. I. (1998). Spatial Distribution and Ages of Alkaline Intrusive Rocks in China and Related Tectonics. Acta Geologica Sinica?English Edition, 72(4), 363-381.
6	West ore body, Intrusion No. 801, Baerzhe complex, Jarud Banner, Tongliao City, Inner Mongolia, China	Jahn, B. M., Wu, F., Capdevila, R., Martineau, F., Zhao, Z., & Wang, Y. (2001). Highly evolved juvenile granites with tetrad REE patterns: the Woduhe and Baerzhe granites from the Great Xing'an Mountains in NE China. Lithos, 59(4), 171-198.
7	Qiancengbei granite, Qiancengbei-Wulingshan Complex, Chengde County, Chengde, Hebei, China	Yang, J.-H., Wu, F.-Y., Wilde, S. A., Chen, F., Liu, X.-M., Xie, L.-W. (2007) Petrogenesis of an Alkali Syenite-Granite-Rhyolite Suite in the Yanshan Fold and Thrust Belt, Eastern North China Craton: Geochronological, Geochemical and Nd-Sr-Hf Isotopic Evidence for Lithospheric Thinning. Journal of Petrology, 49 (2) 315-351 doi:10.1093/petrology/egm083
8	Qingshui, Xinqing District, Yichun, Heilongjiang, China	Wu, Fu-yuan, Sun, De-you, Li, Huimin, Jahn, Bor-ming, Wilde, S. (2002) A-type granites in northeastern China: age and geochemical constraints on their petrogenesis. Chemical Geology, 187 (1) 143-173 doi:10.1016/s0009-2541(02)00018-9
9	Cauro-Bastelica Complex, Tolla, Ajaccio, Corse-du-Sud, Corsica, France	Bonin, B., Vialette, Y. & Lameyre, J. (1972). GEOCHRONOLOGIE ET SIGNIFICATION DU COMPLEXE GRANITIQUE ANNULAIRE DE TOLLA-CAURO (CORSE). Compte Rendu Sommaire des S
10	Bulgen, Qinghe Co., Altay Prefecture, Ili Kazakh Autonomous Prefecture, Xinjiang, China	Hu, A. (1995). The isotopic chronological scale of major geological events in northern Xinjiang, China. Geochimica, 24, 20-31.
11	Zhanawula, Abag Banner, Xilingol League, Inner Mongolia, China	Dawei, H., Weijui, C., Huaizeng, H., Yijun, X., Haiming, X., & Manyuan, J. (1994). The Permian alkaline granites in central Inner Mongolia and their geodynamic significance. Journal of Southeast Asian Earth Sciences, 10(3-4), 169-176.
12	Baiyinula, Sonid Left Banner, Xilingol League, Inner Mongolia, China	Dawei, H., Weijui, C., Huaizeng, H., Yijun, X., Haiming, X., & Manyuan, J. (1994). The Permian alkaline granites in central Inner Mongolia and their geodynamic significance. Journal of Southeast Asian Earth Sciences, 10(3-4), 169-176.
13	Tchouni-Zarniski Complexes, Zinder, Niger	Karche, Jean-Paul, Vachette, Michelle (1978) Age et migration de l'activite magmatique dans les complexes paleozoiques du Niger. Consequences. Bulletin de la Société Géologique de France, S7-XX (6). 941-953 doi:10.2113/gssgfbull.S7-XX.6.941
14	Ankazohambo, Ambatofinandrahana Commune, Ambatofinandrahana District, Amoron'i Mania, Madagascar	Tucker et al (2007) cited in Rasoamalala, V., Salvi, S., B	On zircon in the Vohimavo granite
15	Ambalavayal intrusion, Wayanad district, Kerala, India	Santosh, M., Nair, N. G. K., Pande, K., Gopalan, K. (1986) Rb-Sr Geochronology of the Ambalavayal Granite, Kerala. Journal of the Geological Society of India, 27 (3). 309-312
16	Strange Lake Alkalic Complex, Canada	Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
17	Elk Complex, Ełk County, Warmian-Masurian Voivodeship, Poland	Ryka, W. (1994). Geology of the E?k syenite massif, NE Poland. Pr. Pa?stw. Inst. Geol, 144, 1-125.
18	Dancherla Complex, Anantapur District, Andhra Pradesh, India	Suresh, G., Ananthanarayana, R., Hanumanthu, R. C., Ghosh, S., Kumar, A. A., & Reddy, K. V. S. (2010). Geology of Pulikonda and Dancherla Alkaline Complexes, Andhra Pradesh. Journal of the Geological Society of India, 75(4), 576-595.
19	Rairakhol, Sambalpur district, Odisha, India	Panda, P. K., Patra, P. C., Patra, R. N., Nanda, J. K. (1993) Nepheline Syenite from Rairakhol, Sambalpur District, Orissa. Journal Geological Society of India, 41 (2). 144-151 doi:10.17491/jgsi/1993/410204
20	Kudangulam dikes, Tirunelveli District, Tamil Nadu, India	Ramasamy, R. (1996) Carbonatite Dykes from Kudangulam Area, Near Cape Comorin, Tamil Nadu. Journal Geological Society of India, 48 (2). 221-226 doi:10.17491/jgsi/1996/480211

Synonyms of GranitoidHide

Granitic-rock

Common AssociatesHide

Associations Based on Photo Data:

4 photos of Granitoid associated with 'Amphibolite'
2 photos of Granitoid associated with Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
1 photo of Granitoid associated with 'Paragneiss'
1 photo of Granitoid associated with Titanite	CaTiO(SiO₄)
1 photo of Granitoid associated with 'Metagabbro'
1 photo of Granitoid associated with K Feldspar
1 photo of Granitoid associated with 'Anatexite'
1 photo of Granitoid associated with 'Hornblende-rock'

Internet Links for GranitoidHide

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https://www.mindat.org/min-48126.html
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References for GranitoidHide

Reference List:

Ishihara, S. (1977) The magnetite-series and ilmenite-series granitic rocks. Mining Geology: 27: 293-305.

Tulloch, A. J. (1979) Secondary Ca-Al silicates as low-grade alteration products of granitoid biotite. Contributions to Mineralogy and Petrology, 69 (2) 105-117 doi:10.1007/bf00371854

Amov, B. and Arnaudov, V. (1981) Lead isotope data on the Paleozoic granitoids and ore mineralization from the Western Balkan and the Tran district. I. Isotope ratio and geochronology. Geol. Balc., 11, 2.

Neiva, A.M.R. (1981) Geochemistry of hybrid granitoid rocks and of their biotites from central northern Portugal and their petrogenesis. Lithos, 14 (2) 149-163 doi:10.1016/0024-4937(81)90051-7

Roberts, Malcolm P.; Clemens, John D. (1993) Origin of high-potassium, talc-alkaline, I-type granitoids. Geology, 21 (9). 825-828 doi:10.1130/0091-7613(1993)021<0825:oohpta>2.3.co;2

Barbarin, Bernard (1999) A review of the relationships between granitoid types, their origins and their geodynamic environments. Lithos, 46 (3) 605-626 doi:10.1016/s0024-4937(98)00085-1

FROST, B. RONALD, BARNES, CALVIN G., COLLINS, WILLIAM J., ARCULUS, RICHARD J., ELLIS, DAVID J., FROST, CAROL D. (2001) A Geochemical Classification for Granitic Rocks. Journal of Petrology, 42 (11) 2033-2048 doi:10.1093/petrology/42.11.2033

Bonin, Bernard; Janoušek, Vojtěch; Moyen, Jean-François (2020) Chemical variation, modal composition and classification of granitoids. Geological Society, London, Special Publications, 491 (1). 9-51 doi:10.1144/sp491-2019-138

Jacob, J.-B. and Moyen, J.-F. (2021): Granite and related rocks. Encyclopedia of Geology (Second Edition), 170-183.

Zheng, Yong-Fei; Miller, Calvin F.; Xu, Xisheng; Moyen, Jean-François; Wang, Xiao-Lei (2021) Introduction to the origin of granites and related rocks. Lithos, 402-403. 106380 doi:10.1016/j.lithos.2021.106380

Wang, Xiao-Lei; Wang, Di; Du, De-Hong; Li, Jun-Yong (2021) Diversity of granitic rocks constrained by disequilibrium melting and subsequent incremental emplacement and differentiation. Lithos, 402. 106255 doi:10.1016/j.lithos.2021.106255

Pinho Guimarães, Ignez; Lima, Jefferson Valdemiro (2025) Editorial for Special Issue “Mineral Chemistry of Granitoids: Constraints on Crystallization Conditions and Petrological Evolution”. Minerals, 15 (1). 65 doi:10.3390/min15010065

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