Depth profiles use a number of samples (ideally >5) through a sedimentary unit to provide a single surface exposure age based on cosmogenic nuclide concentration at different depths (Darvill, 2013). Sediment burial can be dated by the radioactive decay of cosmogenic nuclide minerals (10Be and 26Al), provided that the sediments were exposed prior to burial …
This article is edited and drawn from: Davies, B.J., 2022. Dating Glacial Landforms II: Radiometric Techniques, in: Haritashya, U. (Ed.), Treatise in Geomorphology (Second edition). Cryospheric Geomorphology. Elsevier, pp. 249-280. (link) Constructing deglacial chronologies Exposure-age dating is particularly useful for reconstructing deglacial chronologies because temperate, erosive glaciers create fresh rock surfaces, theoretically removing rock with …
This article is edited and drawn from: Davies, B.J., 2022. Dating Glacial Landforms II: Radiometric Techniques, in: Haritashya, U. (Ed.), Treatise in Geomorphology (Second edition). Cryospheric Geomorphology. Elsevier, pp. 249-280. (link) What is cosmogenic nuclide dating? Cosmogenic nuclide dating has been widely applied worldwide over the last 20 years (Balco, 2011). It relies on the …
These selected articles are edited and drawn from: Davies, B.J., 2022. Dating Glacial Landforms II: Radiometric Techniques, in: Haritashya, U. (Ed.), Treatise in Geomorphology (Second edition). Cryospheric Geomorphology. Elsevier, pp. 249-280. (link) Further details are available in the publication, not listed here. If you use these pages please cite appropriately. Other relevant pages:
Learn more about how cosmogenic nuclide samples are collected in this example from Co. Antrim, Northern Ireland. There is a more detailed explanation of cosmogenic nuclide dating in this series of articles:
Article written by Alex Clark (Royal Holloway University of London) Fieldwork is all about making discoveries. It’s an opportunity to take what you have learned at your desk and see for yourself if it is true, or if there is more to be said. Usually, it is the latter. Though probably not at the top …
