Surface exposure dating

The surface exposure dating, also known by its English name Surface exposure dating is a geochronological method for the study of landscape developments. By determining the concentrations of cosmogenic radionuclides (eg 10Be, 26Al, 36Cl ) in surface rocks is determined how long the examined surface was exposed to cosmic rays. This can be determined in the simplest case, a minimum exposure age or suitable combinations measuring the exposure age and erosion rate. Common applications for the method, for example, in the study of prehistoric glacier movement. Has a glacier released a surface can be determined on how soon the new surface has been exposed to cosmic rays, so since when the glacier has retreated.