Question

what is meant by cosmic ray exposure dating​

Answer 1

Answer:

Cosmogenic nuclide dating uses the interactions between cosmic rays and nuclides in glacially transported boulders or glacially eroded bedrock to provide age estimates for rock at the Earth’s surface. It is an excellent way of directly dating glaciated regions. It is particularly useful in Antarctica[1], because of a number of factors[2]:

The lack of terrestrial marine organisms makes radiocarbon dating difficult;

High winds make burial by snow less likely;

Burial and cover by vegetation is unlikely.

Cosmogenic nuclide dating is effective over short to long timescales (1,000-10,000,000 years), depending on which isotope you are dating. Different isotopes are used for different lengths of times. This long period of applicability is an added advantage of cosmogenic nuclide dating.

Answer 2

Answer:

Geologists taking rock samples in Antarctica for cosmogenic nuclide dating..... Cosmogenic nuclide dating uses the interactions between cosmic rays and nuclide in glacially transported boulders or glacially eroded bedrock to provide age estimates for rock at the earth's surface.