V2EX polymictic

Polymictic

Definition / 释义

polymictic(多成分的;多种岩屑/颗粒混杂的):常用于地质学,指由多种不同来源或成分的碎屑、砾石或颗粒混合组成的(如多成分砾岩 polymictic conglomerate)。在湖沼学中也可指“多次混合/常混合的”(指湖水在一年内多次发生上下水体混合)。

Pronunciation / 发音

/plmktk/

Examples / 例句

The outcrop contains a polymictic conglomerate with pebbles of many rock types.
这个露头含有一种多成分砾岩,里面有多种岩石类型的卵石。

Because it is polymictic, the deposit records material from several different source areas and transport events.
由于它是多成分混杂的,这套沉积记录了来自多个源区、并经历多次搬运事件的物质。

Etymology / 词源

来自希腊语构词:**poly-**(“多”)+ **-mict-**(与“混合”相关,源自拉丁语 miscere “混合” 的词根系统)+ 形容词后缀 -ic。整体含义就是“由多种成分混合而成的”。

Related Words / 相关词

Literary Works / 文学与著作例证

  • Wetzel, R. G. Limnology: Lake and River Ecosystems(湖沼学教材中常用 polymictic 描述湖泊混合型)
  • Boggs, S. Principles of Sedimentology and Stratigraphy(沉积学/地层学教材中用于描述多成分砾岩等)
  • Tucker, M. E. Sedimentary Rocks in the Field(野外沉积岩描述中常见 polymictic conglomerate 等术语)
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