V2EX concretion

Concretion

释义 Definition

concretion(名词):(尤指地质学)在沉积物中由于矿物质逐渐沉淀、胶结而形成的结核/凝结体,常呈团块或球状;也可泛指具体化、凝结成形的结果。(该词在学术语境中更常见)

发音 Pronunciation

/ knkrin /

例句 Examples

The beach was littered with concretions.
海滩上散落着许多结核状凝结体。

Over time, minerals in groundwater can cement sand and shell fragments into a hard concretion within the sediment.
随着时间推移,地下水中的矿物质会把沙粒和贝壳碎片胶结在一起,在沉积物中形成坚硬的凝结体。

词源 Etymology

源自拉丁语 concretus(“凝结的、变硬的”),由 **con-**(“共同、一起”)+ crescere(“生长”)相关词形演变而来,原意带有“逐渐聚拢并变得坚实”的感觉;后来在地质学中专指沉积物中“长出来”的结核状矿物集合体。

相关词 Related Words

文学与作品 Literary Works

该词更常出现在经典地质学/自然史著作中(相对少见于小说等文学作品),例如:

  • Charles Lyell, Principles of Geology(《地质学原理》)
  • Charles Darwin, The Voyage of the Beagle(《贝格尔号航行记》)
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