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| is an igneous, volcanic (extrusive) rock, of felsic (silica-rich) composition (typically > 69% SiO2 |
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A cinder cone is a steep, conical hill of volcanic fragments that accumulate around and downwind from a vent .
EX: The rock fragments, often called cinders or scoria, are glassy and contain numerous gas bubbles "frozen" into place as magma exploded into the air and then cooled quickly |
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A large volcanic cone constructed of lava and pyroclastic material in alternating layers.
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| A shield volcano is a type of volcano built almost entirely of fluid lava flows. |
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BA-SALT-IC
Salt water from the ocean. |
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| which type of volcano is associated with plate boundaries were oceans need continents? |
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| In which volcanic zone(s) can you expect to find shield volcanoes? Why? |
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| Divergent and Hotspot if its on a plate, because it's non-explosive because that's where basaltic ocean crust is. |
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Does high or low viscosity make explosive eruptions?
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| High, because gases will be trapped. |
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| two people or two things coming together at some common point. |
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| Drawing apart (seperating) at common point. |
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| The Resistance To Flow (high viscosity) |
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