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Such evidence suggests major periods of glaciation prior to the current Quaternary glaciation. One of the best documented records of pre-Quaternary glaciation, called the Karoo Ice Age, is found in the late Paleozoic rocks in South Africa, India, South America, Antarctica, and Australia. Exposures of ancient glacial deposits are numerous in ...
Quaternary glaciation began in the Alps 870,000 years ago and advanced to the Alpine Foreland 650,000 years ago. In the Alps, the four glaciations are known by the names of Bavarian rivers: Gunz, Mindel, Riss and Wurm. The Wurm glaciation is the most recent and best preserved, ending 11,700 years ago.
The timeline of glaciation covers ice ages specifically, which tend to have their own names for phases, often with different names used for different parts of the world. The names for earlier periods and events come from geology and paleontology. The marine isotope stages (MIS) are often used to express dating within the Quaternary.
The Earth is currently in such an interglacial period of the Quaternary glaciation, with the Last Glacial Period of the Quaternary having ended approximately 11,700 years ago. The current interglacial is known as the Holocene epoch. [1] Based on climate proxies, paleoclimatologists study the different climate states originating from glaciation.
Detailed research by various geomorphologists and Quaternary geologists demonstrated that the two glacial tills and one ash bed stratigraphic model, on which the Yarmouthian, Kansan, Nebraskan, and Aftonian glacial - interglacial nomenclature was based, was completely wrong.
(1999): Reconstruction of an approximately complete Quaternary Tibetan Inland Glaciation between the Mt. Everest- and Cho Oyu Massifs and the Aksai Chin. - A new glaciogeomorphological southeast–northwest diagonal profile through Tibet and its consequences for the glacial isostasy and Ice Age cycle.
This most recent glacial period is part of a larger pattern of glacial and interglacial periods known as the Quaternary glaciation extending from c. 2,588,000 years ago to present. [1] The definition of the Quaternary as beginning 2.58 Ma is based on the formation of the Arctic ice cap.
The Quaternary is also divided into alternating stadials (colder periods) and interstadials (warmer periods) The last stadial reached its peak in the Last Glacial Maximum, between 26,000 and 20,000 years ago, and the Earth is now in an interstadial. The oscillation between glacial and interglacial periods is due to the Milankovitch cycles ...