The local last glacial maximum of the southern Scandinavian ice sheet front: cosmogenic nuclide dating of erratics in northern Poland
Karol Tylmann , Vincent R. Rinterknecht , Piotr Paweł Woźniak , Didier Bourlès , Irene Schimmelpfennig , Valéry Guillou
AbstractThis paper presents new results of terrestrial cosmogenic nuclide dating of erratics in northern Poland. We report the first exposure ages of erratics located on the pre-Local Last Glacial Maximum and the Local Last Glacial Maximum moraines in Poland. Published radiocarbon ages are calibrated and used as a background indicator of the possible time window for the Local Last Glacial Maximum. The terrestrial cosmogenic nuclide exposure ages presented in this study indicate that: (1) exposure ages of erratics located on the pre-Local Last Glacial Maximum moraines (15.9 ± 1.4 to 101.7 ± 8.5 ka) are not clustered around any specific time interval, (2) the age of the ice sheet retreat from the Local Last Glacial Maximum ice limit in western Poland is 20.7 ± 0.8 ka and the probable duration of the Local Last Glacial Maximum in western and central Poland is between ∼25 ka and ∼21 ka, (3) the age of the ice sheet retreat from the Local Last Glacial Maximum ice limit in eastern Poland is 17.3 ± 0.5 ka and the probable duration of the Local Last Glacial Maximum in eastern Poland is between ∼22 ka and ∼18 ka. Our results show that the Local Last Glacial Maximum ice limit in western and central Poland is probably ∼3 ka older than in eastern Poland.
|Corporate author||ASTER Team|
|Journal series||Quaternary Science Reviews, ISSN 0277-3791, (N/A 100 pkt)|
|Publication size in sheets||0.50|
|Keywords in English||Local Last Glacial Maximum, Leszno (Brandenburg) Phase, Poznań (Frankfurt) Phase, cosmogenic nuclide dating, Scandinavian Ice Sheet, erratics|
|ASJC Classification||; ; ; ;|
|Score||= 100.0, 13-02-2020, ArticleFromJournal|
|Publication indicators||= 0.000; : 2017 = 1.550; : 2018 = 4.641 (2) - 2018=5.350 (5)|
|Citation count*||4 (2020-06-30)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.