Archaeologists at the University of Altai have unveiled a new dating technique combining Neon-21 and Argon-38 cosmogenic isotopes to provide unprecedented accuracy for ancient rock art. The methodology was applied to the famous 'Petroglyph Galleries' in the Altai Mountains, refining their age to exactly 32,000 years ago, establishing them as some of the oldest documented symbolic expressions in Northern Eurasia.
By measuring the accumulation of these noble gas isotopes in the mineral varnish covering the engravings, researchers can bypass the limitations of traditional carbon-14 dating which requires organic material. This breakthrough allows for the sub-decadal precision necessary to correlate artistic stylistic shifts with abrupt paleoclimatic events recorded in regional ice cores, linking early human creativity to environmental change.