TY - JOUR

T1 - New evidence for vegetation development and timing of Upper Middle Pleistocene interglacials in Northern Germany and tentative correlations

AU - Urban, Brigitte

AU - Sierralta, Melanie

AU - Frechen, Manfred

PY - 2011/8/15

Y1 - 2011/8/15

N2 - This paper discusses palynological investigations and new 230Th/U ages of two Upper Middle Pleistocenesequences of the formerly glaciated Northern German Lowlands, the Reinsdorf sequence at theopen mine of Schöningen, Lower Saxony and the North Friesian site of Leck. New 230Th/U ages of lateinterglacial organic layers of the archaeological lake margin site of the Reinsdorf sequence ranging from280 to 343 ka give evidence for a correlation of those deposits with Marine Isotope Stage (MIS) 9. Nearand long distance correlation by means of palynological investigations of Holsteinian and relatedinterglacial continental deposits and their correlation with the MIS is discussed. Isotopic investigationsof uranium and thorium from organic-rich mud deposits at core Leck 8 point to an open-system, and ageestimation by 230Th/U-dating remains therefore unclear. Compared to other Upper Middle Pleistocenewarm periods in North Germany, correlations of the Leck-Interglacial with the Holsteinian and theReinsdorf interglacial can be excluded. In comparison with sediment successions from the Nachtigallsection at Höxter and the section Ottostraße at Göttingen, the Leck-Interglacial is discussed asa correlative of a warm temperate phase of MIS 7.

AB - This paper discusses palynological investigations and new 230Th/U ages of two Upper Middle Pleistocenesequences of the formerly glaciated Northern German Lowlands, the Reinsdorf sequence at theopen mine of Schöningen, Lower Saxony and the North Friesian site of Leck. New 230Th/U ages of lateinterglacial organic layers of the archaeological lake margin site of the Reinsdorf sequence ranging from280 to 343 ka give evidence for a correlation of those deposits with Marine Isotope Stage (MIS) 9. Nearand long distance correlation by means of palynological investigations of Holsteinian and relatedinterglacial continental deposits and their correlation with the MIS is discussed. Isotopic investigationsof uranium and thorium from organic-rich mud deposits at core Leck 8 point to an open-system, and ageestimation by 230Th/U-dating remains therefore unclear. Compared to other Upper Middle Pleistocenewarm periods in North Germany, correlations of the Leck-Interglacial with the Holsteinian and theReinsdorf interglacial can be excluded. In comparison with sediment successions from the Nachtigallsection at Höxter and the section Ottostraße at Göttingen, the Leck-Interglacial is discussed asa correlative of a warm temperate phase of MIS 7.

KW - Environmental planning

UR - http://www.scopus.com/inward/record.url?scp=79960840427&partnerID=8YFLogxK

U2 - 10.1016/j.quaint.2011.02.034

DO - 10.1016/j.quaint.2011.02.034

M3 - Journal articles

VL - 241

SP - 125

EP - 142

JO - Quaternary International

JF - Quaternary International

SN - 1040-6182

IS - 1-2

ER -