Haslach-Mindel interglacial

The Haslach-Mindel interglacial (German: Haslach-Mindel-Interglazial), also called the Haslach-Mindel warm period (Haslach-Mindel-Warmzeit), is a warm period of the Pleistocene in the Alpine region. It lies between the Haslach and Mindel glacial stages.

Classification

The Haslach interglacial is defined as that erosion phase which follows the Haslach and precedes the Mindel glacial stage. It thus corresponds to the stratigraphic gap between the Haslach beds (Haslacher Schotter) and the Tannheim-Laupheim gravels (Tannheim-Laupheimer Schotter) northeast of the Rhine Glacier.[1][2] Evidence of erosion during this interglacial is not greatly marked.

The interglacial may possibly correlate to MIS 13. In this case it would be about 480,000 years old.[3] The Haslach-Mindel interglacial would correspond in this instance at least partly to the time frame in which the major Swiss glaciations occurred.[4]

The definition of this interglacial throws up problems because it places the Haslach glacial, which is defined on the basis of gravel depositions, in relation to the Mindel glaciation, which was defined on the basis of depositions that were definitely caused by glaciers. As far as the gravels are concerned, it is not clear that they were deposited as part of a glacial series, because the moraines of the Haslach glacial cannot be clearly identified. The low height differences between the terrace gravels and the Mindel gravels in the type region and the aforementioned uncertainty about the relationship of the Haslach gravels to the glacial depositions - tectonic causes such as an uplift phase of the Alps may be a factor - have resulted in the name Haslach-Mindel Complex (Haslach-Mindel-Komplex) - based on the naming of the Cromerian Complex - being proposed for the whole sequence of landforms and depositions of the Haslach and Mindel stages.

References

  1. A. Schreiner & R. Ebel (1981), "Quartärgeologische Untersuchungen in der Umgebung von Interglazialvorkommen im östlichen Rheingletschergebiet (Baden-Württemberg)" (in German), Geologisches Jahrbuch (Hanover) A 59: pp. 3–64
  2. T. Haag (1982), "Das Mindelglazial des nordöstlichen Rheingletschergebietes zwischen Riß und Iller" (in German), Jahresberichte und Mitteilungen des Oberrheinischen Geologischen Vereins (Stuttgart) 64: pp. 225-266
  3. Global chronostratigraphical correlation table for the last 2.7 million years (pdf file; 433 kB), correlation table by the Subcomission on Quaternary Stratigraphy of the ICS with oxygen isotope stages from ab MIS 106. Version 2009
  4. Christian Schlüchter & Meredith Kelly. "Das Eiszeitalter in der Schweiz" (pdf). Retrieved 2010-02-20.

Literature

External links

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