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interglacial |
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interglacial [ˌɪntəˈgleɪsɪəl -ʃəl] adj (Earth Sciences / Geological Science) occurring or formed between periods of glacial action n (Earth Sciences / Geological Science) a period of comparatively warm climate between two glaciations, esp of the Pleistocene epoch
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Kirschvink's Neoproterozoic Snowball Earth model of severe, ten million-year-long global refrigerations when temperatures plummeted to -50[degrees]C, the world's oceans froze and all planetary biological activity was arrested only to be revived during short, brutal interglacials. Broecker also points out that loess, which was generated in copious amounts during the peaks of the glacial periods, wasn't produced during interglacials. When climate warmed during interglacials, the North American and European ice sheets melted, sending sea levels back up to a height on par with today's. |
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