V2EX asthenosphere

Asthenosphere

释义 Definition

软流圈:地球上地幔上部的一层相对“软、易流动”的区域,位于岩石圈(lithosphere)之下。它在地质时间尺度上可发生缓慢塑性流动,被认为与板块运动密切相关。(该词主要用于地球科学语境。)

发音 Pronunciation (IPA)

/sθinsfr/

例句 Examples

The asthenosphere is softer than the rigid lithosphere above it.
软流圈比其上方坚硬的岩石圈更“柔软”。

Convection in the asthenosphere is often linked to the movement of tectonic plates over millions of years.
软流圈中的对流常被认为与构造板块在数百万年尺度上的移动有关。

词源 Etymology

来自希腊语词根 **asthen-**(意为“虚弱、无力”)+ -sphere(“球体、层”)。组合起来字面意思接近“较弱的层/圈”,用来强调它相较上方岩石圈更容易发生塑性变形与流动。

相关词 Related Words

文学作品中的用例 Literary Works

该词属于现代地球科学术语,更常见于教材与科普写作,而非传统文学经典。较常出现在以下类型作品中:

  • 大学地质学与地球物理学教材(如板块构造、地幔对流相关章节)
  • 现代科普地球科学著作与期刊文章(讨论岩石圈软流圈结构与板块运动机制时)
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