the condition of being covered with glaciers or masses of ice; the result of glacial action;
\\\"Agassiz recognized marks of glaciation all over northern Europe\\\"
the process of covering the earth with glaciers or masses of ice
造句
用作名詞(n.)
These hills were formed by glaciation. 這些山丘是冰川作用形成的。
The Great Lakes basins were excavated by the ice, and many present landforms are the result of this continental glaciation. 五大湖盆地都是冰挖掘出來的，如今許多現有地形都是這種大陸冰川作用的結果。
Pleistocene glaciation caused the extinction of many species. 第四紀冰期，使許多物種絕滅。