Definition of «global glaciation»

"Global glaciation" refers to a situation where large portions of the Earth's surface are covered by glaciers or ice sheets, extending over continents and oceans. It means that the Earth experiences an extensive and long-lasting period of extreme cold temperatures, causing the growth of glaciers and ice to become widespread.

Sentences with «global glaciation»

A similar low and high arsenic content accompanied the coming and going of global glaciations at around 0.7 billion years ago, which is when Earth first saw the appearance of complex life. (sciencedaily.com)
«In particular, this mechanism may have contributed to Earth's entry into a long period of global glaciation around 700 million years ago, a theory known as the Snowball Earth hypothesis.» (sciencedaily.com)
«In addition, this early phase of evolutionary divergence appears to have preceded the extreme climate changes that led to Snowball Earth, a period marked by severe long - term global glaciation that lasted from about 720 to 635 million years ago,» Dohrmann says. (sciencedaily.com)
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