A Lateglacial 10Be production rate from glacial lake shorelines in Scotland

The identification of tephra within varved deposits of a former ice-dammed lake that existed in Scotland during the Younger Dryas provides an opportunity to calibrate Be-10 production rates using previously published Be-10 concentrations from the lake shoreline and independently derived ages for the tephras derived from the Greenland Ice Core records. The best-estimate ages of the tephras yield indistinguishable Be-10 production rate values for spallation with an average value of 4.26 +/- 0.21 atoms g(-1) a(-1) using the Lm' scaling scheme. These values are in best agreement with the most proximal reference Be-10 production rate from Norway.