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Coarse-grained ("plutonic") crystalline igneous rock

A rock classification type
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00529070017272472717005.jpg
Pegmatitic peralkaline syenite, etc.

Sagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
07629450017271952974868.jpg
Larvikite

Almenningen Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
03285540017271952979236.jpg
Granite

D. João quarry, Monforte, Monforte, Portalegre, Portugal
03210290017272473434319.jpg
Pegmatitic peralkaline syenite, etc.

Sagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
07629450017271952974868.jpg
Larvikite

Almenningen Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
03285540017271952979236.jpg
Granite

D. João quarry, Monforte, Monforte, Portalegre, Portugal
00529070017272472717005.jpg
Pegmatitic peralkaline syenite, etc.

Sagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
07629450017271952974868.jpg
Larvikite

Almenningen Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
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About Coarse-grained ("plutonic") crystalline igneous rockHide

QAPF_P_.png

Rocks in section 1 of the QAPF diagram.


Coarse-grained crystalline normal igneous rock. Coarse grained usually means >2mm, easily visible to the naked eye. In many classification systems these are termed "plutonic" and are usually intrusive.
1 Quartz-Rich-Granitic-Rock
1a Quartzolite
2 Alkali-Feldspar-Granite
3 Granite (3a: Syenogranite - 3b: Monzogranite)
4 Granodiorite
5 Tonalite
6 Alkali-Feldspar-Syenite
6* Quartz-Alkali-Feldspar-Syenite
6' Foid-Bearing-Alkali-Feldspar-Syenite
7 Syenite
7* Quartz-syenite
7' Foid-Bearing-Syenite
8 Monzonite
8* Quartz-monzonite
8' Foid-monzonite
9 Monzodiorite / Monzogabbro
9* Quartz-monzodiorite / Quartz-monzogabbro
9' Foid-Monzodiorite / Foid-Monzogabbro
10 Diorite / Gabbro / Anorthosite
10* Quartz-Diorite / Quartz-Gabbro
10' Foid-Bearing-Diorite / Foid-Bearing-Gabbro
11 Foid-Syenite (Foyaite)
12 Foid-Monzosyenite
13 Foid-Monzodiorite (Essexite)
14 Foid-Diorite
15 Foidolite

Field 3 is sometimes subdivided into fields 3a and 3b, which correspond to syenogranite and monzogranite, but usually both are treated as one field for granite.


Unique IdentifiersHide

Mindat ID:
48121
Long-form identifier:
mindat:1:1:48121:0

Classification of Coarse-grained ("plutonic") crystalline igneous rockHide

The QAPF diagram
breaks coarse-grained crystalline igneous rocks down into 15 groups according to the IUGS recommendations for igneous rock classification.


Sub-divisions of Coarse-grained ("plutonic") crystalline igneous rockHide

View all 171 analyses with additional filters.

Age distributionHide

Recorded ages:
Neochaotian to Neogene : ~4600 Ma to 7.1 ± 0.2 Ma - based on 171 recorded ages.
Sample ages:
Sample IDRecorded ageGeologic TimeDating method
1At least 145 MaLate Jurassic
225 ± 0.9 MaOligoceneK-Ar
355.6 ± 1.0 MaEoceneK-Ar
463.3 ± 1.3 MaPaleoceneRb-Sr whole rock
595.8 ± 2.0 MaLate/Upper CretaceousK-Ar
6122.3 MaEarly/Lower CretaceousU-Pb zircon
7129.4 ± 0.7 MaEarly/Lower CretaceousLA-ICP-MS zircon U-Pb
8134.8 MaEarly/Lower CretaceousK-Ar whole rock
9146 to 145 MaLate JurassicK-Ar
10201 MaEarly Jurassic
11250 MaEarly/Lower Triassic
12275 ± 6 MaCisuralianK/Ar
13292.5 MaCisuralianRb-Sr whole rock
14351 ± 7 MaMississippianK-Ar
15501 ± 27 MaMiaolingianRb-Sr
16623 ± 21 MaEdiacaranRb-Sr isochron
17830 ± 51 MaTonianRb-Sr whole rock regression
182500 to 541 ± 1.0 MaProterozoic
194000 to 2500 MaArchean
20~4600 to 541 ± 1.0 MaPrecambrian
Sample references:
IDLocalityReferenceNotes
1Socotra Island, Aden Governorate, Yemen
doi.org/10.1144/gsjgs.125.1.0413
2Affara Dara Peralkaline Granite, Kilbet Rasu, Afar Region, Ethiopia
Barberi, F., Borsi, S., Ferrara, G., Marinelli, G., Santacroce, R., Tazieff, H., & Varet, J. (1972). Evolution of the Danakil Depression (Afar, Ethiopia) in light of radiometric age determinations. The Journal of Geology, 80(6), 720-729. doi.org/10.1086/627797
3Mourne 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.
4Mayo Darle Complex, Mayo-Banyo, Adamawa Region, Cameroon
Lasserre, M. (1978). MISE AU POINT SUR LES GRANITOIDES DITS" ULTIMES" DU CAMEROUN: GISEMENT, PETROGRAPHIE ET GEOCHRONOLOGIE. Bulletin du Bureau de Recherches Geologiques et Minieres, Paris, 4, 143-159.
5Mandamus intrusive complex, Culverden, Hurunui District, Canterbury Region, New Zealand
Tulloch, A. J. (1991). Alkaline plutonic and volcanic rocks of the Late Cretaceous Mandamus Igneous Complex, north Canterbury.
taramite syenite
6Xianghongdian Complex, Yu'an District, Lu'an, Anhui, China
Yang, Z. L., Shen, W. Z., Shen, J. L., Tao, K. Y., & Xie, F. G. (1999). Isotopic geochronology of the Xianghongdian alkaline complex, northern margin of the Dabie Mountains, China. ACTA GEOLOGICA SINICA-ENGLISH EDITION, 73(4), 404-410.
alkaline syenite
7Longbaoshan intrusion, Lanling County, Linyi, Shandong, China
Lan, T. G., Fan, H. R., Hu, F. F., Tomkins, A. G., Yang, K. F., & Liu, Y. (2011). Multiple crust
8Zijinshan Complex, Xing County, Lüliang, Shanxi, China
Bai, G. (1985). Carbonatites and related mineral resources. Bull. Inst. Miner. Deposits Chin. Acad. Geol. Sci., 13, 1-193.
9El Naga Ridge, Red Sea Governorate, Egypt
Serencsits, C. M., CM, S., KA, F., & El Ramly, M. F. (1979). Alkaline ring complexes in Egypt: their ages and relationship to tectonic development of the Red Sea. Annals of the Geological Survey of Egypt, 9, 102-116.
10Luku Complex, Yanbian County, Panzhihua, Sichuan, China
Lin, C., LIu, Y., Wang, Z., & Hong, W. (1995). Rare element and rare-earth element deposits of China. Mineral deposits of China, 3, 226-279.
11Donghuofang Au deposit, Wuchuan County, Hohhot City, Inner Mongolia, China
Nie, F. J. (1995). Gold deposits related to alkaline igneous rocks in the North China Craton, People's Republic of China. in Mineral Deposits: From Their Origin to Their Environmental Impacts. Proc. 3rd Biennial SGA Meet., Prague, 173-176.
12Cligga Head, Perranporth, Perranzabuloe, Cornwall, England, UK
Halliday, A. N. (1980). The timing of early and main stage ore mineralization in Southwest Cornwall. Economic Geology, 75(5), 752-759.
13Sareshike Sn Mine, Sabei intrusion, Qitai Co., Changji Autonomous Prefecture, Xinjiang, 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.
14Tarbtie North Intrusion, Red Sea Governorate, Egypt
Serencsits, C. M., CM, S., KA, F., & El Ramly, M. F. (1979). Alkaline ring complexes in Egypt: their ages and relationship to tectonic development of the Red Sea. Annals of the Geological Survey of Egypt, 9, 102-116.
15Sørøya, Troms og Finnmark, Norway
Sturt, B. A., Pringle, I. R., Ramsay, D. M. (1978) The Finnmarkian phase of the Caledonian Orogeny. Journal of the Geological Society, 135 (6) 597-610 doi:10.1144/gsjgs.135.6.0597
syenite dike that cuts carbonatite
16Sivamalai intrusion, Tiruppur District, Tamil Nadu, India
Rao, T. S., Narayana, B. L., & Gopalan, K. (1994). Rb-Sr age of the Sivamalai alkaline complex, Tamil Nadu. Proceedings of the Indian Academy of Sciences-Earth and Planetary Sciences, 103(3), 425-437.
17Numbi Intrusion, Numbi, Kalehe Territory, South Kivu, DR Congo
Kampunzu, A.B., Kramers, J.D., Makutu, M.N. (1998) Rb-Sr whole rock ages of the Lueshe, Kirumba and Numbi igneous complexes (Kivu, Democratic Republic of Congo) and the break-up of the Rodinia supercontinent. Journal of African Earth Sciences, 26 (1). 29-36 doi:10.1016/s0899-5362(97)00134-6
18Keluo, Nenjiang County, Heihe, Heilongjiang, China
Zhang, M., Suddaby, P., Thompson, R. N., Thirlwall, M. F., & Menzies, M. A. (1995). Potassic volcanic rocks in NE China: geochemical constraints on mantle source and magma genesis. Journal of Petrology, 36(5), 1275-1303.
19Dancherla 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.
20Kudangulam 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

Chemical AnalysisHide

Oxide wt%:
 123
SiO256.86 %51.44 %55.75 %
Al2O319.46 %19.66 %16.31 %
TiO20.99 %1.65 %1.43 %
Fe2O32.00 %2.00 %3.09 %
FeO2.34 %4.5 %6.23 %
MgO0.63 %1.5 %1.32 %
MnO0.16 %0.27 %0.21 %
Na2O7.57 %7.10 %5.91 %
CaO3.72 %7.26 %3.54 %
K2O5.89 %3.85 %4.92 %
P2O50.12 %0.28 %0.5 %
H200.57 %
Total:99.74 %99.51 %99.78 %
Sample references:
IDLocalityReferenceNotes
1Mont Royal, Montréal, Québec, Canada
Woussen, Gerard (1970) La geologie du complexe igne du Mont Royal [The geology of the Mount Royal igneous complex]. The Canadian Mineralogist, 10 (3). p.432-451.
Wet chemical analysis by G. Woussen and B.M.Gunn. The Fe2O3 percentage is arbitrarily set to 2%.
2  "  "
Woussen, Gerard (1970) La geologie du complexe igne du Mont Royal [The geology of the Mount Royal igneous complex]. The Canadian Mineralogist, 10 (3). p.432-451.
Wet chemical analysis by G. Woussen and B.M.Gunn. The Fe2O3 percentage is arbitrarily set to 2%.
3Ilímaussaq complex, Kujalleq, Greenland
Ferguson, John (1970) The differentiation of agpaitic magmas; the Ilimaussaq intrusion, south Greenland. The Canadian Mineralogist, 10 (3). p.335-349.
Average of 8 analyses of a rock containing K-feldspar/perthites (72.4 vol%), pyroxene (6.9vol%), amphibole(3.7 vol%), olivine (6.3 vol%), mica (5.5 vol%), apatite (1 vol%), opaques (3.6 vol%), chlorite (0.6 vol%) & nepheline (tr). Analytical method is not given but presumably wet chemical.

Synonyms of Coarse-grained ("plutonic") crystalline igneous rockHide

Internet Links for Coarse-grained ("plutonic") crystalline igneous rockHide

References for Coarse-grained ("plutonic") crystalline igneous rockHide

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