V2EX divergent boundary

Divergent Boundary

定义 Definition

divergent boundary(离散型板块边界/张裂型板块边界):指两块岩石圈板块相互远离的板块边界类型,常伴随地幔物质上涌与减压熔融,形成洋中脊大陆裂谷,并产生新洋壳、玄武质火山活动与浅源地震等现象。(板块边界还包括 convergent boundary 与 transform boundary 等。)

例句 Examples

A divergent boundary can create new oceanic crust at a mid-ocean ridge.
离散型板块边界可以在洋中脊处形成新的海洋地壳。

As the plates move apart along a divergent boundary, magma rises, cools, and gradually builds a long chain of volcanic mountains beneath the sea.
当板块沿离散型板块边界分离时,岩浆上涌、冷却,并逐渐在海底堆积成绵延的火山山脉。

发音 Pronunciation (IPA)

/davdnt bandri/

词源 Etymology

divergent 源自拉丁语 divergere(“分开、岔开”),由 *di-*(“分离”)+ vergere(“倾向、转向”)构成;boundary 源自中古英语与古法语 boundarie(“边界、界限”)。两者组合后用于地质学与板块构造学,描述“向外分离的边界”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Earth: An Introduction to Physical Geology(Tarbuck & Lutgens)常用于讲解离散型板块边界与洋中脊、海底扩张的关系。
  • Understanding Earth(Grotzinger & Jordan)在板块构造章节中系统使用该术语并配合示意图说明机制。
  • Plate Tectonics and Crustal Evolution(Kearey, Klepeis & Vine)在讨论岩石圈演化与地幔过程时频繁出现该术语。
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