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 outcome occurs when ephemeral desert stream discharge ceases during peak evaporation?
• Along coastal desert regions, which mechanism causes cool offshore waters to create advection fog?
• Which process leads to soil subsidence above loess deposits?
• Which process strongly influences nutrient distribution within an ocean gyre's convergence zone?
• Which mechanism accelerates lake eutrophication when agricultural runoff contains excessive nutrients?
• Which mechanism causes tsunami wave amplification as earthquake-generated wave approaches shallower coastal water?