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The three main types of volcanoes are shield, stratovolcanoes (or composite volcanoes), and cinder cone volcanoes. Shield volcanoes, like Mauna Loa, have gentle slopes and erupt primarily through the effusion of low-viscosity basalt lava, resulting in broad, expansive landforms. Stratovolcanoes, such as Mount St. Helens, exhibit steep profiles and erupt explosively due to more viscous magma, often resulting in pyroclastic flows and ash clouds. Cinder cone volcanoes are the smallest and erupt explosively, spewing out ash and small lava fragments that accumulate around the vent to form a steep, conical hill.

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2mo ago

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What type of volcano does and does not erupt?

Active volcanoes erupt. Dormant volcanoes are quiet - but may erupt again some day. Extinct volcanoes have "closed up shop" for good, and will never erupt again.


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The three main types of volcanoes are shield volcanoes, stratovolcanoes (or composite volcanoes), and cinder cone volcanoes. If you're looking for a type that is not one of these, examples include fissure volcanoes and lava domes, which have different characteristics and formation processes. Each type varies in shape, eruption style, and the materials they primarily erupt.


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