二長輝長岩

二長輝長岩(英語:Monzogabbro)是一種侵入岩,成分介于輝長岩二長岩之間。 QAPF分類圖表中將其定義為粗粒火成岩,其中石英佔QAPF礦物組分的0%至5%,斜長石佔長石總含量的65%至90%,並富含鈣 (%An > 50)。[1][2][3]

參考文獻

  1. ^ Le Bas, M. J.; Streckeisen, A. L. (1991). "The IUGS systematics of igneous rocks". Journal of the Geological Society. 148 (5): 825–833. Bibcode:1991JGSoc.148..825L. CiteSeerX 10.1.1.692.4446. doi:10.1144/gsjgs.148.5.0825. S2CID 28548230.
  2. ^ "Rock Classification Scheme - Vol 1 - Igneous" (PDF). British Geological Survey: Rock Classification Scheme. 1: 1–52. 1999.
  3. ^ Philpotts, Anthony R.; Ague, Jay J. (2009). Principles of igneous and metamorphic petrology (2nd ed.). Cambridge, UK: Cambridge University Press. pp. 139–143. ISBN 978-0-521-88006-0.