Talk:Cromerian Stage

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This is NOT Late Pleistocene!!!! The Late Pleistocene officially starts with the start of the Eemian. The stratotype of the base of the Late Pleistocene is in borehole (!) Amsterdam Terminal (Netherlands, in which is the type area of the Eemian). The Middle Pleistocene is defined by the Brunhes-Matuyama boundary at its base. Both boundaries are agreed at the last INQUA congress (2007). The other information, e.g. the correlation with the Alpine stage Günz-Mindel is also dubious. This is almost certainly incorrect.--Tom Meijer (talk) 10:56, 21 February 2008 (UTC)

Two other remarks

• The assignment to the Category:Glaciology is incorrect. This is not glaciology. Besides, this category includes a lot of pages that have nothing to do with glaciology as well.
• I don't understand the relevance of the picture on this page. The figure explains American and alpine terminology and not British, what the page is about. What is 'Yarmouth'? I know the 'Yarmouth Roads Formation' This is a Quaternary seismic formation in the present North Sea. This does not occur on shore. --Tom Meijer (talk) 11:06, 21 February 2008 (UTC)

The "Yarmouth", which the figure refers to is the former North American "Yarmouth Stage". However, back in the 1980's, Quaternary geologists, i.e. Hallberg et al. (1986), Richmond and Fullerton (1986), Roy et al. (2004), and many others, in the United States abandoned the Aftonian, Nebraskian, Kansan, and Yarmouth stages and merged them all into the Pre-Illinoian Stage (Roy et al. 2004). Thus, the Yarmouth and older North American stages shown in the figure are no longer used in the United States. they should be taken out of the figure as discussed in two of the external links to this article.

References Cited:

Hallberg, G.R., 1986, Pre-Wisconsin glacial stratigraphy of the Central Plains region in Iowa, Nebraska, Kansas, and Missouri. Quaternary Science Reviews. vol. 5, pp. 11-15.

Richmond, G.M. and D.S. Fullerton, 1986, Summation of Quaternary glaciations in the United States of America. Quaternary Science Reviews. vol. 5, pp. 183-196.

Roy, M.,, P.U. Clark, R.W. Barendregt, J.R., Glasmann, and R.J. Enkin, 2004, Glacial stratigraphy and paleomagnetism of late Cenozoic deposits of the north-central United States., PDF version, 1.2 MB. Geological Society of America Bulletin. vol. 116, no. 1-2; pp. 30-41; DOI: 10.1130/B25325.1

Bytham query

Is the Bytham River associated with this period? Brunnian (talk) 12:01, 27 September 2009 (UTC)R

As I wrote on Talk:Bytham River: "As far as I know a very important part of British Quaternary researchers are of the opinion that the Bytham River is geophantasy: the existance is highly debatable: most probably two different river systems have been erroneously connected to each other. I don't see anything of the main opinion on this lemma". This is part of the answer to your question. Certain socalled Bytham River deposits will certainly date from the Cromerian Complex, if these date from the Cromerian itself is uncertain. British Quaternary researchers are devided into two camps: pro and contra this river system. Myself I think that the contra-camp may be right in their opinion. --Tom Meijer (talk) 17:34, 27 September 2009 (UTC)

Cromerian Stage or Cromerian Complex , not Cromerian interglacial

According to the Subcommission on Quaternary Stratigraphy, the official name for this stage is either Cromerian Stage or Cromerian Complex. Look at their official stratigraphic charts. Paul H. (talk) 13:37, 1 May 2015 (UTC)

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