A calcite formation hidden in a southern Nevada cave has turned out to be one of the longest and most detailed climate archives ever found on land, preserving a near-continuous record that stretches ...

The rock formations in caves are chemistry fossils — that glow. These rocks are made of calcite, a form of calcium carbonate. Impurities trapped in calcite cause the mineral to fluoresce different ...

CORVALLIS, Ore. – Climate history recorded in a calcite deposit in a southern Nevada cave indicates that the hot, arid southwestern United States experienced significant shifts in temperature and ...