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: "One of the most eye-catching guides to the world’s volcanoes ever published.
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An inclusion of foreign rock in an igneous rock.
Xenoliths in volcanic rocks are often pieces of the volcano's (non-volcanic) substratum picked up by, engulfed within and erupted with the rising magma. -> See whole entry
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Tours to erupting volcanoes
: From time to time, we organize special tours to see volcanoes in eruption. These are often announced only few days or weeks in advance. Find out more!
Ambrym+Yasur volcanoes in Vanuatu
: An adventurous expedition to some of the most spectacular and active volcanoes in the world! Our volcano expedition to Vanuatu lets you spend 1 week on Ambrym with its multiple active lava lakes and 4 days on Yasur, famous for its spectacular fireworks. Guided by professional volcanologist, small groups (May-Sep).