Deglaciation pattern and chronology for the Fennoscandian Ice Sheet

Arjen Stroeven

A reconstruction of the deglaciation of the Fennoscandian Ice Sheet, in the form of calendar-year time-slices, which are useful for ice sheet modelling, is compiled and synthesized from published geomorphological data for eskers, ice-marginal formations, lineations, marginal meltwater channels, striae, ice-dammed lakes, and geochronological data from radiocarbon, varve, optically-stimulated luminescence, and cosmogenic nuclide dating. This is summarized as a deglaciation map of the Fennoscandian Ice Sheet with isochrons marking every 1000 years between 22 and 13 cal kyr BP and every hundred years between 11.6 and final ice decay after 9.7 cal kyr BP.

Terrestrial Landforms Fennoscandian Ice Sheet Deglaciation Glacial geomorphology Geochronology Ice sheet dynamics

References

Arjen P. Stroeven, Clas Hättestrand, Johan Kleman, Jakob Heyman, Derek Fabel, Ola Fredin, Bradley W. Goodfellow, Jonathan M. Harbor, John D. Jansen, Lars Olsen, Marc W. Caffee, David Fink, Jan Lundqvist, Gunhild C. Rosqvist, Bo Strömberg, Krister N. Jansson (2016). Deglaciation of Fennoscandia, Quaternary Science Reviews, 147: 91-121. DOI: 10.1016/j.quascirev.2015.09.016

Data description

Three types of data are available: 1) Radiocarbon, OSL, and cosmogenic ¹⁰Be and ²⁶Al exposure age data used to constrain the Fennoscandian deglaciation chronology (XLSX files). 2) Shapefiles and associated files for the deglaciation reconstruction isochrons marking every 1000 years from 22 to 13 cal kyr BP and every hundred years from 11.6 to 9.7 cal kyr BP. 3) Video showing deglaciation pattern and chronology for the Fennoscandian Ice Sheet. Ice margins are given at 1-kyr intervals from 22 to 13 cal kyr BP before an ice sheet-wide interruption in retreat during the Younger Dryas (12.7–11.6 cal kyr BP). Post-Younger Dryas margins (11.6–9.7 cal kyr BP) are shown at 100-year intervals (MP4 file).