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australian electronic gold prospecting forum.com  |  Geology and earth sciences  |  Earth sciences and related topics  |  Miscellaneous Geology links  |  Topic: Types of volcanic eruptions 0 Members and 1 Guest are viewing this topic. « previous next »
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« on: Monday February 22 2016 11:33:49 AEDT AM »

Types of volcanic eruptions
“There are three different meta types of eruptions. The most well-observed are magmatic eruptions, which involve the decompression of gas within magma that propels it forward. Phreatomagmatic eruptions are another type of volcanic eruption, driven by the compression of gas within magma, the direct opposite of the process powering magmatic activity. The last eruptive metatype is the phreatic eruption, which is driven by the superheating of steam via contact with magma; these eruptive types often exhibit no magmatic release, instead causing the granulation of existing rock.”
    
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