V2EX plagioclase

Plagioclase

释义 Definition

plagioclase(斜长石)是长石族中一类常见的造岩矿物,属于钠钙长石固溶体系列(从钠端元的钠长石到钙端元的钙长石)。它广泛存在于玄武岩、安山岩、闪长岩、辉长岩、花岗岩等火成岩中,也是许多变质岩的重要组成矿物。

例句 Examples

Plagioclase is a common mineral in many igneous rocks.
斜长石在许多火成岩中都很常见。

In thin section, plagioclase often shows polysynthetic twinning, which helps geologists identify it under the microscope.
在薄片中,斜长石常出现聚片(多重)孪晶,这有助于地质学家在显微镜下识别它。

发音 Pronunciation (IPA)

/pldikles/

词源 Etymology

plagioclase 来自希腊语词根:plagios(“倾斜的、斜的”)+ klasis(“断裂、破裂”)。名称与其晶体学性质有关,早期矿物学家用它来指这种长石在解理/晶面关系上表现出的“斜”的特征。

相关词 Related Words

文献与著作 Literary & Notable Works

  • Introduction to Mineralogy(William D. Nesse)
  • Principles of Igneous and Metamorphic Petrology(Anthony Philpotts & Jay Ague)
  • Igneous Petrology(Myron G. Best)
  • Petrology of the Igneous Rocks(N. L. Bowen)
  • Dana’s Textbook of Mineralogy(Edward S. Dana 等经典版本)
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