Selected references and wider reading *Recommended review Applegate, P.J., Urban, N.M., Keller, K., Lowell, T.V., Laabs, B.J.C., Kelly, M.A., Alley, R.B., 2012. Improved moraine age interpretations through explicit matching of geomorphic process models to cosmogenic nuclide measurements from single landforms. Quaternary Research 77, 293-304. *Balco, G., 2011. Contributions and unrealized potential contributions of cosmogenic-nuclide exposure …
This text below is drawn from: Davies, B.J., 2022. CRYOSPHERIC GEOMORPHOLOGY: Dating Glacial Landforms I: archival, incremental, relative dating techniques and age-equivalent stratigraphic markers. (link) Multiple methods needed for dating glacial environments Over the last few decades, multiple methodologies for dating different types of glacial landform have become available to chronologists and geomorphologists. There has …
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:
This article is edited and drawn from: Davies, B.J., 2021. Dating Glacial Landforms II: Radiometric Techniques, in: Haritashya, U. (Ed.), Treatise in Geomorphology (Second edition). Cryospheric Geomorphology. Elsevier, pp. 249-280. (link) Introduction to radiocarbon dating Radiocarbon dating has been around since the 1940s (Libby, 1961, 1955), and has transformed our understanding of the timing of …
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Glossary of some common terms used in optically stimulated luminescence, radiocarbon and cosmogenic nuclide dating. Aliquot A sub-sample of the material being measured. Allochthonous Rocks that have been transported & deposited (inc. erratics, alluvial fans, gelifluction, etc. Attenuation length (Λ) Thickness of a material (rock, snow, ice) required to attenuate intensity of cosmic-ray flux due …
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This article is taken from: Davies, B.J., 2022. CRYOSPHERIC GEOMORPHOLOGY: Dating Glacial Landforms I: archival, incremental, relative dating techniques and age-equivalent stratigraphic markers. (link) Introduction Trees colonising recently deglaciated land surfaces, especially on markers of ice advance such as moraines, provide a means of dating surfaces that are too young to date reliably by other …
This article is taken from: Davies, B.J., 2022. CRYOSPHERIC GEOMORPHOLOGY: Dating Glacial Landforms I: archival, incremental, relative dating techniques and age-equivalent stratigraphic markers. (link) Introduction Schmidt-hammer exposure-age dating assesses the compressive strength of bedrock and boulder surfaces and relates this to the degree of weathering of a surface (Wilson et al., 2019). It is a …
