ResearchDATED – a dating database and GIS-based reconstruction for the Eurasian deglaciationIn the British-Dutch-Norwegian co-operative project “Impact of changing freshwater flows on the thermohaline circulation and European climate – analysis and modelling of the last deglaciation” (ORMEN) led by Sandy Harrison, Bristol, one of the objectives is to produce maps of the deglaciation chronology of the Eurasian ice sheets (i.e. including the Barents-Kara sea, Scandinavian and British ice sheets). This task is subdivided into a DATabase on Eurasian Deglaciation Dates (DATED 1) and a Digital ATlas of the Eurasian Deglaciation (DATED 2).DATED 1 is aimed to create a database on available dates (14C, OSL and exposure) relevant for the deglaciation chronology (from ~ 40 ka to ~9 ka). The database will contain information on date and error, calibration details, sample location, sample material, lab reference, author reference, min. or max. age, and more. DATED 2 is aimed to build a GIS on the deglaciation pattern of the Eurasian ice margin with interpreted ice margin positions for certain time-slices on a calendar year time scale, based on existing literature on mapped ice marginal deposits. The main purpose is to provide accurate digital maps with isochrones of the Eurasian deglaciation pattern to modellers and other researchers, and to facilitate future re-interpretation of the deglaciation pattern. DATED 1 & 2 will be successively updated and made available on the web to the scientific community. In the GIS, all original data sources (scanned maps, dating and calibration info etc) and literature references will be stored, available for successive quality control and re-interpretation. Would you like to cooperate with us in this giant task? Please send an e-mail to richard.gyllencreutz@geo.uib.no.
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