How is the magma chamber evolution at Kirishima Shinmoedake volcano?
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The evolution of the magma chamber at Kirishima Shinmoedake volcano in Japan has been investigated through various studies. It has been found that the magma chamber was filled with bubble-free magma prior to the eruptions in 2011 and 2018 . Petrological studies and melt inclusion analyses have shown that the magma ascended from mafic magma with high volatile content to shallow felsic magma, and the two magmas were mixed . The magma in 2018 was a remnant of the 2011 magma, and the magma approached chemical equilibrium over the period from 2011 to 2018 . Excess degassing occurred in the magma due to convection since 2011, leading to a decrease in volatile content and a transition from subplinian eruptions to lava effusion in 2018 . The eruption style transition and temporal variations were influenced by the ascent rate of magma and the geological structure beneath the summit crater .
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24 Mar 2022 1 Citations | The provided paper does not directly discuss the evolution of the magma chamber at Kirishima Shinmoedake volcano. |
| The provided paper does not directly discuss the evolution of the magma chamber at Kirishima Shinmoedake volcano. | |
| The provided paper does not directly discuss the evolution of the magma chamber at Kirishima Shinmoedake volcano. |
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