V2EX turbidity current

Turbidity Current

定义 Definition

浊流;浑浊密度流:一种在水下(常见于海底斜坡、海底峡谷)沿底部快速流动的、含大量悬浮泥沙的高密度水流。它通常由海底滑塌、洪水入海或地震等触发,能把沉积物长距离搬运并形成浊积岩(turbidite)等沉积层。(在海洋地质与沉积学中最常用;“current”也可泛指“水流/洋流”,但此处特指这种密度驱动的泥沙流。)

发音 Pronunciation

/trbdti krnt/
/tbdti knt/

例句 Examples

A turbidity current can carry sand and mud down a submarine canyon.
浊流可以将沙和泥沿海底峡谷向下搬运。

Triggered by an earthquake, the turbidity current swept across the seafloor and left a distinct graded bed.
在地震触发下,浊流横扫海底,并留下清晰的粒序层(正粒序沉积)。

词源 Etymology

turbidity 来自拉丁语 turbidus(“混浊的、骚动的”),与“浑浊度/混浊状态”相关;current 来自拉丁语 currere(“奔跑、流动”),引申为“流、潮流”。合起来强调“因浑浊(含泥沙)导致密度更大、沿底流动的水流”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • H. G. Reading(编) Sedimentary Environments: Processes, Facies and Stratigraphy(沉积环境学经典教材,讨论浊流与深水沉积)
  • Sam Boggs Jr. Principles of Sedimentology and Stratigraphy(沉积学与地层学教材,常以浊流解释浊积层形成)
  • Gary Nichols Sedimentology and Stratigraphy(系统介绍浊流、密度流与相关沉积构造)
  • Peter Talling 等(学术专著/论文)关于现代深海浊流的观测与机制研究(常直接使用术语 turbidity current
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