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Fig. 4 | Earth, Planets and Space

Fig. 4

From: Understanding and forecasting phreatic eruptions driven by magmatic degassing

Fig. 4

Model for type 1 phreatic systems and eruptions. A shallow magma body releases gas by intrusion and/or crystallization. The gases are transported upward through a series of cracks, intersecting the hydrothermal system above. If the hydrothermal system is sealed at its top, the system will become pressurized from the addition of hot magmatic gases. Such conditions promote phreatic eruptions

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