[–] jessriedel link

Folks interested in this unusual combination may also be interested in the use of particle tracks to date geological samples

> "Techniques for geological dating of minerals by chemical etching of fission fragment tracks"

> http://www.sciencedirect.com/science/article/pii/00167037649...

and the even more surprising case of using ancient rocks as particle detectors with extremely large exposure times (> 1B yr)

> "Unique Signature of Dark Matter in Ancient Mica"

> https://arxiv.org/abs/astro-ph/9701215

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[–] theoh link

For surface objects, there is at least https://en.wikipedia.org/wiki/Surface_exposure_dating

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[–] swamp40 link

Only works for hills?

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