Which mineralogical change results when cave stalactites exposed to ventilation?

💡 Explanation

Aragonite unstable at lower PCO2 levels undergoes a transformation to calcite through dissolution and reprecipitation, called neomorphism, because the introduction of drier outside air reduces PCO2; therefore aragonite isn't stable, rather than gypsum which depends on sulfur concentration.

• Which mechanism causes the Intertropical Convergence Zone to experience a seasonal shift in latitude?
• Which outcome develops when sediment supply exceeds transport capacity on a rapidly subsiding basin with proximal mountain uplift forming a braided stream?
• Which hydrologic outcome results when glacial meltwater fills a kettle?
• Which landscape outcome results when carbonic acid dissolution weakens bedrock?
• Which outcome results when accelerated coastal Longshore Drift encounters an estuary inlet?
• Which outcome occurs when sediment transport capacity decreases within a river meander?