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500 million years of climate change Ice core data for the past 400,000 years, with the present at right. Note length of glacial cycles averages ~100,000 years. Blue curve is temperature, green curve is CO 2, and red curve is windblown glacial dust (loess). Scale: Millions of years before present, earlier dates approximate.
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A less severe cold period or ice age is shown during the Jurassic-Cretaceous (150 Ma). 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.
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. The Last Glacial Period ended about 15,000 years ago. [1]
The PGP lasted from ~194,000 years ago, to ~135,000 years ago, and was succeeded by the Last Interglacial. [1] The PGP also occurred during Marine Isotope Stage 6 (MIS6). [ 2 ] At the glacial ages' height, it is known to be the most extensive expansion of glaciers in the last 400,000 years over Eurasia, and could be the second or third coolest ...
The Elster glaciation (German: Elster-Kaltzeit, Elster-Glazial or Elster-Zeit) or, less commonly, the Elsterian glaciation, in the older and popular scientific literature also called the Elster Ice Age (Elster-Eiszeit), is the oldest known ice age that resulted in the large-scale glaciation of North Germany and other parts of Europe. It took ...
Biber or the Biber Complex (German: Biber-Komplex) is a timespan approximately 2.6–1.8 million years ago in the glacial history of the Alps.Biber corresponds to the Gelasian age in the international geochronology, which since 2009 is regarded as the first age of the Quaternary period.
900 years See Little Ice Age [12] 1 ≈ −1.4 ka : ≈ 600 AD : 1400 years See Migration Period [12] and Late Antique Little Ice Age: 2 ≈ −2.8 ka : ≈ 800 BC : 1400 years See Iron Age Cold Epoch: 3 ≈ −4.2 ka : ≈ 2200 BC : 1700 years See 4.2-kiloyear event; collapse of the Akkadian Empire and the end of the Egyptian Old Kingdom. [13 ...