V2EX mantle plume

Mantle Plume

释义 Definition

地幔柱:从地球深部地幔上升的、相对高温且浮力较强的柱状热物质上涌体,被认为可能导致热点火山活动(如夏威夷)与大型火成岩省等地质现象。该术语在地球科学中常用;在不同模型中,对其形态与成因也有不同解释。

发音 Pronunciation (IPA)

/mntl plum/

例句 Examples

A mantle plume may create a chain of volcanic islands.
地幔柱可能会形成一串火山岛链。

Geochemists use isotopic signatures to test whether basalts were fed by a deep mantle plume rather than by shallow plate-boundary processes.
地球化学家会用同位素特征来检验:玄武岩的物质来源是否来自深部地幔柱,而不是浅部板块边界过程。

词源 Etymology

mantle 原意为“斗篷、覆盖物”,在地质学中引申为“地幔”(像覆盖地球内部的一层)。plume 原意为“羽毛、羽状物”,后来也指“羽状烟羽/羽流”。组合成 mantle plume,形象地表达“从地幔升起的羽状上涌流”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Dynamic Earth: An Introduction to Physical Geology(介绍地球动力学与热点/地幔过程,常讨论 mantle plume 概念)
  • Earth(Press & Siever 等经典地学教材,涉及热点与地幔柱假说)
  • W. Jason Morgan (1971), Convection plumes in the lower mantle(早期系统提出地幔对流羽状上涌的经典论文)
  • Mantle Plumes and Their Record in Earth History(以“地幔柱及其地质记录”为主题的专著/论文集,术语高频出现)
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