Concept information
Preferred term
Günz
Definition
- Gunz, Günz or Gunz Complex is a timespan in the glacial history of the Alps. It started approximately one million years ago and ended about 370 000 years ago. Some sources put the end at 480 000 years ago. Deep sea core samples have identified approximately 5 glacial cycles of varying intensity during Gunz. The name Gunz glaciation, Gunzian glaciation or Günz glacial stage refere to the Günz. It is the oldest glaciation of the Pleistocene in the traditional, quadripartite glacial classification of the Alps. The Günz was thought to follow the Danube-Günz interglacial and was ended by the Günz-Haslach interglacial. The 2016 version of the detailed stratigraphic table by the German Stratigraphic Commission puts the start of Gunz in the late Calabrian (approximately one million years ago, earlier than MIS 19) and shows a continuity of glacial cycles with the following Mindel stage, with the border arbitrarily put at the start of MIS 10 (approximately 374 000 years ago). Gunz corresponds roughly to the Cromerian stage in the glacial history of Northern Europe. Deep sea core samples have identified approximately 10 marine isotope stages (at least MIS 21 to MIS 11) during Gunz. Thus, there have probably been about 5 glacial cycles of varying intensity during Gunz. During Gunz the 41 000 year glacial cycle of previous stages (Biber and Danube) had been replaced by a dominance of a 100,000-year cycle (Mid-Pleistocene Transition). The most intense glacials of Gunz (MIS 16 and MIS 12) reached similar extents to those of the more recent Riss and Wurm glacials. These have not been easy to identify in the geological record of the Alps, but MIS 16 has been identified with the Don Glaciation of Eastern Europe. The strong glacial MIS 12 has been problematic, and has sometimes been identified with the Mindel glaciation, which would imply an end to Gunz already after MIS 13 (480 000 years ago). (Adapted from: https://en.wikipedia.org/wiki/Gunz_(geology))
Broader concept
Entry terms
- Gunz
- Gunz complex
- Günz glacial stage
- Gunz glaciation
- Günz glaciation
- Gunzian glaciation
- Günz Stage
In other languages
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French
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glaciation de Günz
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glaciation Günz
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Gunz
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stade de Günz
URI
http://data.loterre.fr/ark:/67375/QX8-DH9LJNDJ-W
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