Homogenisation of cosmic-ray exposure ages

Over the past three decades, cosmic-ray exposure (CRE) dating has been increasingly applied to establish the records of past glacier changes. Glacial landforms that were sculptured by glacier fluctuations throughout the Holocene can now be routinely dated, thanks to analytical improvements in chemical protocols and accelerator mass spectrometry (AMS). In addition, methodological refinements of cosmogenic nuclide production parameters over the past ~15 years significantly improved the accuracy of the CRE dating method. The majority of the chapters in this book include CRE ages based on beryllium-10 or chlorine-36 dating, which considerably contribute to the understanding of spatiotemporal variations of Holocene glaciers in Europe. However, some of these CRE dates were measured and calculated before the most recent methodological refinements, thus potentially biasing the glacier records in some regions. Those CRE ages determined with obsolete parameters were therefore recalculated according to the up-to-date AMS standardisation and knowledge of production systematics. This homogenisation ensures consistency and comparability of the glacier chronologies presented in this book.