These are varves, meaning annual layers of lake sediment showing the seasonal climate change like tree rings do. Each layer one year, around 1 mm thick. We climbed more than 100,000 years to have these views pic.twitter.com/ppivitVemh
— ∆(Garcia-Castellanos) (@danigeos) February 2, 2018
via Twitter https://twitter.com/danigeos
February 03, 2018 at 03:54AM
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