theIASHub | 09 Jul, 2025 | 17
Impact Of Melting Of Glaciers On Volcanic Activity : Recently, a scientific study presented at the 2025 Goldschmidt Conference in Prague warned that melting glaciers and ice caps could trigger increased volcanic activity in several parts of the world.
o The research highlights West Antarctica as the most vulnerable region, with nearly 100 volcanoes lying beneath thick ice sheets that are rapidly retreating due to rising global temperatures.
o Melting Lifts Pressure: As ice melts, the pressure is released, allowing gases and magma to expand, potentially triggering eruptions.
o Lower Melting Point of Rocks: Reduced pressure lowers the melting point of rocks, encouraging magma formation deep underground.
o Water Infiltration Increases Risk: Climate-driven precipitation can seep underground and interact with magma chambers, raising eruption likelihood.
o 26,000–18,000 years ago: Thick ice sheet suppressed volcanic eruptions, causing magma to build up 10–15 km below the surface.
o Around 13,000 years ago: As the ice melted, highly explosive eruptions occurred.
o Confirms that ice loss can trigger dormant volcanoes into eruptive activity.
o Large or sustained eruptions release CO₂ and methane, potent greenhouse gases that intensify global warming.
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