深成岩(英語:plutonic rock)是一種火成岩,生成于地壳的较深處(>2 km),因為在地下缓慢冷却,使得矿物具有大的结晶粒度。常为斑岩纹理。常见的深成岩有花崗岩辉绿岩(粗玄岩英语dolerite)。[1][2]

犹他州的Notch Peak英语Notch Peak侏罗纪深成岩:紫色的二長岩侵入灰色沉积岩之下,随地层抬升而暴露。

另一概念侵入岩(英語:intrusive rock)是指由火成侵入作用形成的火成岩,經常被視為深成岩的同義詞。[3]

語源

plutonic rock这个英文术语起源于罗马神话中地下世界的主宰冥王普鲁托。十八世纪末水成论火成论的地质学大论战时命名。pluton也被視為火成侵入的同義詞。

参见

参考文献

  1. ^ Examples of rocks with different names. [12 June 2015]. (原始内容存档于2020-05-06). 
  2. ^ Igneous rock types - Australian Museum. [14 June 2015]. (原始内容存档于2015-06-03). 
  3. ^ Igneous Rocks. National Park Services, U.S. Department of Interior. [2023-12-21]. (原始内容存档于2024-02-11) (英语). Intrusive igneous rocks solidify within Earth. These rocks are also known as plutonic rocks 
  • Glazner, A. F., Bartley, J. M., Coleman, D. S., Gray, W. and Taylor, R. Z. (2004). "Are plutons assembled over millions of years by amalgamation from small magma chambers?" GSA Today, 14 (4: April), pp. 4–11.
  • Young, Davis A. (2003). Mind Over Magma: the Story of Igneous Petrology. Princeton University Press. ISBN 0-691-10279-1.
  • Best, Myron G. (1982). Igneous and Metamorphic Petrology. San Francisco: W. H. Freeman & Company. pp. 119 ff. ISBN 0-7167-1335-7.