A More Than 781000 Year Old Glacial Sequence in Jylland, Denmark, Dated by Palaeomagnetism

A 22m thick glacial, lacustrine sequence was sampled for palaeomagnetic analysis with the main purpose to see if the sediment was of inverse polarity. It turned out that all 34 samples taken showed reverse polarity and the sequence may thus be referred to the Matuyama Chron, moving the hitherto assumed maximum age for glacial deposits in Denmark considerably back in time, from the Elster Ice age approximately 350-400ky to now at least 781ky. From the directional data a VGP close to the South American southernmost tip was calculated and a VGP path moving from there towards the west and up northward east of New Zealand. This may indicate the beginning of a pole transition, probably the Matuyama-Brunhes.