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October 17, 2019

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UNLV geoscience professor Matthew Lachniet points to growth layers on a section of a stalagmite at the Las Vegas Isotope Science Laboratory on UNLV campus Monday, Sept. 19, 2016.

Steve Marcus

UNLV geoscience professor Matthew Lachniet points to growth layers on a section of a stalagmite at the Las Vegas Isotope Science Laboratory on UNLV campus Monday, Sept. 19, 2016.