二长花岗岩

二长花岗岩
火成岩
	二长花岗岩，地点：Col des Croix, Haute-Saône, France

二长花岗岩（英语：Monzogranite）是黑云母花岗岩，被认为是岩浆分离结晶的最终产物。二长花岗岩的特征是长英质（SiO2 > 73%，FeO + MgO + TiO2 < 2.4），弱过铝质（Al2O3/（CaO + Na2O + K2O）= 0.98–1.11），并含有钛铁矿、榍石、磷灰石和锆石作为副矿物 . 虽然二长花岗岩的成分范围很小，但它确定一种分异趋势，该趋势由黑云母和斜长石的分离结晶控制。（法吉奥诺，2002 年）。二长花岗岩可分为镁钾二长花岗岩和铁钾二长花岗岩两大类，并可根据其宏观特征、熔体特征、同位素数据和发现地点进一步分类^[1]^[2]^[3]。

参考文献

^ Aguado, Beatriz Valle, M. Rosário Azevedo, John Nolan, and M. Estela Martins. (2005) "Origin and emplacement of syn-orogenic Variscan granitoids in Iberia the Beiras massif." Journal of the Virtual Explorer, 2005 issues, Vol. 19.
^ Boiley, Miche, and Charles Gosselin. (2003) "Rare metal potential in the Near North, Québec." Geoscience Exhibit.
^ Fagiono, M. R., F. E. Nullo, J. E. Otamendi, et al. (2002) "Geología, petrología y mineralogía del granito Inti Huasi, sur de la sierra de Comechingones, Córdoba." Rev. Asoc. Geol. Argent., oct./dic. 2002, vol. 57, no. 4, p. 389–403. ISSN 0004-4822. Online Summary:

[”1”-1] Aguado, Beatriz Valle, M. Rosário Azevedo, John Nolan, and M. Estela Martins. (2005) "Origin and emplacement of syn-orogenic Variscan granitoids in Iberia the Beiras massif." Journal of the Virtual Explorer, 2005 issues, Vol. 19.

[”2”-2] Boiley, Miche, and Charles Gosselin. (2003) "Rare metal potential in the Near North, Québec." Geoscience Exhibit.

[”3”-3] Fagiono, M. R., F. E. Nullo, J. E. Otamendi, et al. (2002) "Geología, petrología y mineralogía del granito Inti Huasi, sur de la sierra de Comechingones, Córdoba." Rev. Asoc. Geol. Argent., oct./dic. 2002, vol. 57, no. 4, p. 389–403. ISSN 0004-4822. Online Summary:

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