Abstract
The two anorogenic (EA), (A1) and (AA), and postorogenic (PO), (A2) and (PA), alkaline groups, Bonin (1990), Eby (1992), and Hong et al. (1996), alternatively, can be further distinguished into hotspot, rift and post-continent–continent collision, post-subduction magma varieties, respectively, by using some binary and ternary elements relation diagrams. The hotspot varieties have the highest differentiated index values, while the rift varieties have a moderate to low differentiated index values compared to the post-continent–continent collision and the subduction varieties which have low differentiated index values. The hotspot and the post-continent–continent subgroups generated sodic, peralkaline magma type, and are characterized by oxidized tectonic setting regime, while the rift and the post-subduction alkaline varieties have both a sodic and potassic nature characterizing the peralkaline, the metaluminous, and the peraluminous magma types that are generated in both oxidized and reduced conditions.
Similar content being viewed by others
References
Abdel- FM, Rahman A, Martin RF (1990) The Mount Gharib A-type granite, Nubian Shield: petrogenesis and role of metasomatism at the source. Contrib Mineral Petrol 104:173–183
Anderson JL, Bender EE (1989) Nature and origin of Proterozoic A-type granitic magmatism in the southwestern United States. Lithos 23:19–52
Bonin B (1990) From orogenic to anorogenic settings: evolution of granitoid suites after a major orogenesis. Geol J 25:261–270, W.S. Pitcher Special Issue
Capaldi G, Ghiesa S, Manetti P, Orsi G, Poli G (1987) Tertiary anorogenic granites of the western border of the Yemen Plateau. Lithos 20:433–444
Clemens JR, White AJR (1986) Origin of A-type granites: experimental constraints. Am Mineral 71:317–324
Collins WJ, Beams SD, White AJR, Chappell BW (1982) Nature and origin of A-type granites with particular reference to south eastern Australia. Contrib Mineral Petrol 80:198–200
Dall’agnol R, Scaillet B, Pichavant M (1999) An experimental study of a Lower Proterozoic A-type granite from the Eastern Amazonian Craton, Brazil. J Petrol 40:1673–1698
Eby GN (1992) Chemical subdivision of the A-type granitoids: petrogenesis and tectonic implications. Geology 20:641–644
Eby GN (1990) The A-type granitoids: a review of their occurrence and chemical characteristics and speculations on their petrogenesis. Lithos 26:115–134
Eby GN, Kochhar N (1990) Geochemistry and petrogenesis of the Malani igneous suite, North Peninsular India. Geol Soc Indian J 36:109–130
Eby GN, Krueger HW, Creasy JW (1992) Geology, geochronology, and geochemistry of the White Mountain Batholith, New Hampshire. In: Puffer JH, Ragland PC (eds) Eastern North American Mesozoic magmatism, vol 268, Geological Society of America Special Paper., pp 379–398
Emslie RF, Stirling JAR (1993) Rapakivi and related granitoids of the Nain plutonic suite: geochemistry, mineral assemblages and fluid equilibria. Can Mineral 31:821–884
Fletcher CJN, Beddoe-Stephene B (1987) The petrology, chemistry and crystallization history of the Velasco alkaline province, eastern Bolivia. In: Fitton JG, Upton BGJ (eds) Alkaline igneous rocks, vol 30, Geological Society of London Special Publication., pp 403–414
Frisch W, Abdel-Rahman AM (1999) Petrogenesis of the Wadi Dib alkaline ring complex, Eastern Desert of Egypt. Mineral Petrol 65:249–275
Frost CD, Frost BR (1997) High-K, iron-enriched rapakivi-type granites: the tholeiite connection. Geology 25:647–650
Hildreth W, Halliday A, Christiansen R (1991) Isotopic and chemical evidence concerning the genesis and contamination of basaltic and rhyolitic magma beneath the Yellowstone Plateau volcanic field. J Petrol 32:63–138
Holm PM, Praegel N-O (1988) The Tertiary Kaerven syenite complex, Kangerdlugssuaq, East Greenland: mineral chemistry and geochemistry. Mineral Mag 52:435–450
Hong D, Wang S, Han B, Jin M (1996) Post-orogenic alkaline granites from China and comparisons with the anorogenic alkaline granites elsewhere. J SE Asian Earth Sci 13:13–27
Johannes W, Holtz F (1992) Trans R Soc Edin Earth Sci 83:417–422
Katzir Y, Eyal M, Litvinovsky BA, Jahn BM, Zanvilevich AN, Valley JW, Beeri Y, Pelly I, Shimshilashvili E (2006) Petrogenesis of A-type granites and origin of vertical zoning in the Katharina pluton, Gebel Mussa (Mt. Moses) area, Sinai, Egypt. Lithos 95:208–228
King PL, White AJR, Chappell BW, Allen CM (1997) Characterization and origin of aluminous A-type granites from the Lachlan Fold Belt, Southeastern Australia. J Petrol 3:371–391
Kinnaird JA, Bowden (1985) Mineralogy, geochemistry and mineralization on the Ririwai complex, northern Nigeria. J Afr Earth Sci 3:185–222
Landenberger B, Collins WJ (1996) Derivation of A-type granites from a dehydrated charnockitic lower crust: evidence from the Chaelundi Complex, Eastern Australia. J Petrol 37:145–170
Leat PT, Jackson SE, Thorpe RS, Stillman CJ (1986) Geochemistry of bimodal basalt-subalkaline/peralkaline rhyolite provinces within the Southern British Caledonides. Geol Soc Lond J 143:259–273
Liegeois J-P, Navez J, Hertogen J, Black R (1998) Contrasting origin of post-collisional high-K calc-alkaline and shoshonitic versus alkaline and peralkaline granitoids. The use of sliding normalization. Lithos 45:1–28
Loiselle MC, Wones DR (1979) Characteristics of anorogenic granites. Geol Soc Am Abstr Programs 11:468
MacDonald RM, Davies GR, Bliss CM, Leat PT, Bailey DK, Smith RI (1987) Geochemistry of high-silica peralkaline ryholites, Naivasha Kenya Rift Valley. J Petrol 28:979–1008
Nelson DO, Nelson KL, Reeves KD, Mattison GD, Mattison GD (1987) Geochemistry of Tertiary alkaline rocks of the Eastern Trans-Pecos magmatic province, Texas. Contrib Mineral Petrol 97:72–92
O’Halloraan DA (1985) Ras ed Dom migrating ring complex: A-type granites and syenites from the Bayuda Desert, Sudan. Afr Earth Sci J 3:61–75
Peccerillio A, Barberio MR, Yirgu G, Ayalew D, Barbieri M, Wu TW (2003) Relationships between mafic and peralkaline silicic magmatism in continental rift settings: a petrological, geochemical and isotopic study of the Gedemsa Volcano, Central Ethiopian Rift. J Petrol 44:2003–2032
Pearce JA, Haris NBW, Tindle AG (1984) Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. J Petrol 25:956–983
Qiu J-S, Wang D-Z, Mcinnes BIA, Jiang S-Y, Wang R-C, Kanisawa S (2004) Two subgroups of A-type granites in the costal area of Zhejiang and Fujian Provinces, SE China: age and geochemical constraints on their petrogenesis. Trans R Soc Edin Earth Sci 95:227–236
Radain AAM, Fyle WS, Kerrich R (1981) Origin of peralkaline granites of Saudi Arabia. Contrib Mineral Petrol 78:358–366
Ramo OT (1991) Petrogenesis of the Proterozoic rapakivi granites and related basic rocks of southeastern Fennoscandia: Nd and Pb isotopic and general geochemical constraints. Geol Surv Finl Bull 355:161
Thornton CP, Tuttle OF (1960) Chemistry of igneous rocks. Differentiation index. Am J Sci 258:664–684
Wenner JM, Lioyd MA (2006) Trace-element signatures and tectonic affinities of Proterozoic-A-type granites and rhyolites in Central Wisconsin. Wis Geol Nat Hist Surv Geosci Wis 17:35–51
Whalen JB, Currie KL, Chappell BW (1987a) A-type granites: geochemical characteristics, discrimination and petrologenesis. Contrib Mineral Petrol 95:407–419
Whalen JB, Currie KL, van Breemen O (1987b) Episodic Ordovician–Silurian plutonism in the Topsails igneous terrane, western Newfoundland. R Soc Edin Trans 78:17–28
Woolley AR, Jones GC (1987) The petrochemistry of the northern part of the Chilwa alkaline province Malawi. In: Fitton JG, Upton BGJ (eds) Alkaline igneous rocks, vol 30, Geological Society of London Special Publication., pp 335–356
Wormald RJ, Price RC (1988) Peralkaline granites near Temora, southern New South Wales: tectonic and petrological implication. Aust J Earth Sci 35:209–221
Acknowledgments
The author is gratefully thankful to Prof. Samir El Gaby, late and former head of the Geology Dept. at the Faculty of Science, Assiut University, Egypt for his kind encouragement and insightful discussion, remarks and review that have greatly improved an earlier version of the manuscript. Due thanks should also be extended to Prof. M. H. Shalaby Nuclear Materials Authority, Cairo, Egypt; for his linguistic and editorial revisions of the manuscript.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
El Dabe, M.M. A geochemical tectonomagmatic classification of the A-type granitoids based on their magma types and tectonic regimes. Arab J Geosci 8, 187–193 (2015). https://doi.org/10.1007/s12517-013-1195-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12517-013-1195-8