| The two that are most often in the news are shield volcanoes, as seen in Hawaii, and composite volcanoes. |
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| Mount Unzen actually consists of a group of composite volcanoes located on Japan's Shimabara Peninsula east of Nagasaki. |
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| For this reason many geologists refer to stratovolcanoes as composite volcanoes. |
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| Most of the composite volcanoes of the Cascades Range in Oregon and Washington in the northwestern United States are characteristically calc-alkalic. |
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| In older areas of convergence, the composite volcanoes have been eroded, exposing the deeper plutonic granite batholiths that extend the entire length of the convergent boundaries. |
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| The dominant rock constituting the composite volcanoes is andesite, but in some younger island arcs basalt tends to be more common, and in older volcanic areas dacite or rhyolite becomes prominent. |
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| In this case, granite batholiths underlie the great composite volcanoes and consist of rocks ranging from basalt through andesite to dacite and rhyolite. |
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| Stratovolcanoes are also known as composite volcanoes because they are created from multiple structures during different kinds of eruptions. |
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| Intermediate lavas form andesite domes and block lavas, and may occur on steep composite volcanoes, such as in the Andes. |
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| Stratovolcanoes or composite volcanoes are tall conical mountains composed of lava flows and other ejecta in alternate layers, the strata that gives rise to the name. |
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| Composite volcanoes are particularly dangerous because of their tendency to erupt in an extremely explosive manner. |
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