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glaciation    音标拼音: [gl,eʃi'eʃən]
n. 冻结成冰,冰河作用

冻结成冰,冰河作用

glaciation
n 1: 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"
2: the process of covering the earth with glaciers or masses of
ice


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  • Glaciation - National Geographic Society
    As glaciers move across a landscape, they alter the terrain and carve out unique formations This process is called glaciation, and it is responsible for many of the most recognizable landscapes on Earth
  • Timeline of glaciation - Wikipedia
    There have been five or six major ice ages in the history of Earth over the past 3 billion years The Late Cenozoic Ice Age began 34 million years ago, its latest phase being the Quaternary glaciation, in progress since 2 58 million years ago
  • Glacier | Definition, Formation, Types, Examples, Facts | Britannica
    glacier, any large mass of perennial ice that originates on land by the recrystallization of snow or other forms of solid precipitation and that shows evidence of past or present flow Exact limits for the terms large, perennial, and flow cannot be set
  • What is glaciation? - Internet Geography
    What is glaciation? Glaciation is the study of ice and its impact on the environment The Ice Age in Britain lasted from about one million years ago to about 20 000 years ago During that time the northern and eastern parts of the British Isles were covered in ice Some places were under 3km of ice
  • The Glaciation Timeline - WorldAtlas
    Glaciers carve out the surface of the Earth, leaving behind valleys and lakes Once temperatures increase, glaciers melt and fill those valleys and lakes with water It is believed that these eras are brought on by solar radiation and shifts in plate tectonics A glaciation period is marked by glacial and interglacial periods
  • Glaciation - The Canadian Encyclopedia
    Glaciation is the formation, movement and recession of glaciers Glaciation was much more extensive in the past, when much of the world was covered in large, continental ice sheets Currently, glaciers cover about 10 per cent of the world's land area (14 9 million km 2)
  • Glaciation - Encyclopedia. com
    Glaciation is the accumulation of ice in a given area when more snow falls in winter than melts in summer The resulting body of ice is termed a glacier When ice accumulates over many years, a glacier’s own weight causes it to flow like an extremely viscous (thick) liquid
  • 14. 6: Ice Age Glaciations - Geosciences LibreTexts
    A glaciation (or ice age) occurs when the Earth’s climate is cold enough that large ice sheets grow on continents There have been four major, well-documented glaciations in Earth’s …
  • 16. 1 Glacial Periods in Earth’s History – Physical Geology
    There have been three major glaciations during the Phanerozoic (the past 540 million years), including the Andean Saharan (recorded in rocks of South America and Africa), the Karoo (named for rocks in southern Africa), and the Cenozoic glaciations
  • Glacial period - Wikipedia
    A glacial period (alternatively glacial or glaciation) is an interval of time (thousands of years) within an ice age that is marked by colder temperatures and glacier advances Interglacials , on the other hand, are periods of warmer climate between glacial periods





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