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14 November, 23:59

What percentage of the earths volcanoes are shield volcanoes?

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  1. 15 November, 01:55
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    There are 48 shield volcanoes on Earth (active & inactive, excluding the extinct ones). Out of approximately 1,500 volcanoes in total on the planet, shield volcanoes represent about 3%.

    Shield volcanoes are composed for the most part of basalt, which is fluid lava. Their name comes from their aspect as seen from the side, looking like a shield lying on the ground. This distinctive shape comes from the build-up of broad lava sheets which spread all around the magma chamber.

    The most famous ones are in Hawaii, such as Kilauea and Mauna Loa, the largest volcano on Earth.
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