STALAGMITES UNLOCK THE PAST
Nov 03, 2021
3 minutes
STORY BY ESME MATHIS
ILLUSTRATION BY
MICHAEL PAYNE
HE TAPERING AND sometimes towering mineral deposits called stalagmites, which rise from cave floors, have an internal structure that, like the rings of tree trunks, can retain climate signals in a precise chronology. Now an Australian-based study has revealed that stalagmite growth is more consistent than previously thought, increasing its value as a record of past events. “Our new global analysis shows we can consider stalagmite growth as being like a metronome
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