Cosmogenic exposure dating

Cosmogenic exposure dating -principles and applications. Quaternary glacial history of Beringia -overview with case studies. My biased reading suggestions: An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.

cosmogenic exposure dating-86

Glacial geologists use this phenomenon to date glacial landforms, such as erratics or glacially transported boulders on moraines[7] or glacially eroded bedrock.

Dating glacial landforms helps scientists understand past ice-sheet extent and rates of ice-sheet recession.

Assuming that the boulder remains in a stable position, and does not roll or move after deposition, this boulder will give an excellent As well as using cosmogenic nuclide dating to work out the past extent of ice sheets and the rate at which they shrank back, we can use it to work out ice-sheet thicknesses and rates of thinning[5, 6].

Sampling and dating boulders in a transect down a mountain will rapidly establish how thick your ice sheet was and how quickly it thinned during deglaciation.

Glacial geologists are often interested in dating the maximum extents of glaciers or rates of recession, and so will look for boulders deposited on moraines.

Comments