glaciation
🇬🇧/ˌɡleɪsiˈeɪʃn/ 🇺🇸/ˌɡleɪʃiˈeɪʃn/
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In geology, glaciation is the process by which the land is covered by glaciers. Glaciations are periods when this happens. 冰蚀期
noun [抽象名词] [地质] 冰川作用；冻结成冰
The problem with ascribing all tillites to glaciation, however, is that tillite deposits are widespread in Precambrian sediments. 然而，使所有的黑土形成冰川作用的问题是，在前寒武纪沉积物中广泛分布有黑土。
后缀: tion
【noun】 表示某种行为、状态或结果 - indicating an action, process, or result
原词: glaciation
是通过后缀 【tion】 构成的派生词
