V2EX aphanitic

Aphanitic

定义 Definition

aphanitic(隐晶质;细粒状):指火成岩的一种结构特征岩石由肉眼难以分辨的极细小晶体组成,通常意味着岩浆在地表或近地表快速冷却(常见于玄武岩、安山岩等)。

发音 Pronunciation (IPA)

/fntk/

例句 Examples

The basalt is aphanitic, so I can’t see individual crystals.
这块玄武岩是隐晶质的,所以我看不出单个晶体。

Because the lava cooled quickly at the surface, the rock developed an aphanitic texture rather than visible, coarse crystals.
由于熔岩在地表快速冷却,这种岩石形成了隐晶质结构,而不是肉眼可见的粗大晶体。

词源 Etymology

来自希腊语 aphanēs(“不显现的、看不见的”),由 **a-**(否定前缀,“不”)+ phainein(“显现、出现”)构成;后接形容词后缀 -itic,表示“具有……性质的”。整体含义即“看不见晶体的(结构)”。

相关词 Related Words

文献与作品中的用例 Literary / Notable Works

  • Igneous Rocks: A Classification and Glossary of Terms(Le Maitre 等):在火成岩命名与结构术语中使用并解释 aphanitic
  • Petrology: Igneous, Sedimentary, and Metamorphic(Harvey Blatt, Robert J. Tracy):讨论火成岩冷却速率与 aphanitic texture 的对应关系。
  • Introduction to Mineralogy and Petrology(相关地质学教材版本):在火成岩结构章节中常以玄武岩、安山岩为例说明 aphanitic
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