Abstract
AbstractThe climate in central Europe during the last 60 ka is characterized by rapid temperature and moisture changes and strong cold periods (Heinrich events). All these variations are preserved in sediments of marine and also some terrestrial archives. Here we present a continuous, terrestrial sediment record with almost all Greenland stadials and Heinrich events between 60 and 13 ka visible from carbonate roundness of the Eifel Laminated Sediment Archive Dust Stack-20 and CaCO3 data for central Europe. The carbonate roundness data show almost all stadials between 60 and 13 ka. CaCO3 data show a general transport system change with the beginning of Heinrich event 3. Since there are no carbonates west of the Auel Maar, we conclude that the eolian-transported grains were not transported by westerly but easterly winds. These postulated easterly winds during the last glacial maximum are supported by similar findings of previous works.
Highlights
AND SITE DESCRIPTIONThe Eifel region in central Europe is an established geoarchive for climate reconstruction in central Europe as the climate in the area between Belgium and Poland is thought to have been nearly homogenous on longer time scales (Wernli and Pfahl, 2009)
The key objective of this paper is to present a dust record, reconstructed from carbonate roundness and CaCO3 data of the Eifel Laminated Sediment Archive (ELSA) Dust Stack-20, that will serve as a continuous terrestrial sediment record for central Europe with almost all Greenland stadials (GS) and Heinrich events between 60 and 13 ka represented
It can be assumed that the two carbonate regions were connected during the Middle and Late Pleniglacial and are today covered by younger strata, probably glacial solifluction and Holocene colluvium
Summary
AND SITE DESCRIPTIONThe Eifel region in central Europe is an established geoarchive for climate reconstruction in central Europe as the climate in the area between Belgium and Poland is thought to have been nearly homogenous on longer time scales (Wernli and Pfahl, 2009). We present a new eolian dust record from the Auel dry maar, located in the Eifel volcanic field in Germany (Fig. 1). The record spans almost the past 60 ka, as the volcano erupted around 59.3 ka ago (Sirocko, unpublished data). The Eifel volcanic field consists of seven recent maar lakes and about 60 dry maar lakes (sediment-infilled former maar lakes). The silted-up Auel Maar lake had a diameter of about 1.3 km and a depth of 105 m (Brunck et al, 2016; Sirocko et al, 2016). A small, 5-km-long creek (modern “Tieferbach”) filled up the maar lake until the early Holocene (Brunck et al, 2016). We have chosen to end the presented timeseries with the Laacher See Tephra, which marks the date of 12,930 yr b2k (all ages are given in b2k, years before 2000 Common Era)
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