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Check out the volcano tours offered by Volcano-Adventures!
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Guaranteed tours:
17-23 Mar 2018: Kilauea Volcano Special - Big Island, Hawaiʻi
17-23 Mar 2018: Pele´s Fire and Myths - Big Island, Hawaiʻi
28 Apr - 3 May 2018: Aegean's Hidden Gem: Isle of Milos - Milos Island (Greece)
5-13 May 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
12-20 May 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
19-27 May 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
9-17 Jun 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
24 Jun - 1 Jul 2018: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
12-14 Jul 2018: Krakatau Volcano Special - Krakatau volcano, Sunda Strait
6-14 Oct 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
: spaces available / : guaranteed / : few spaces left / : booked out

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Random pictures

Illustrated Volcano Glossary

Xenolith

Volcanology
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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