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Divergent plate boundaries in oceans Two ocean plates move apart from each other. Hot upwelling mantle material forms magmas that continuously produce new oceanic crust. An ocean widens.
Volcano Calendar 2018 We're proud to present our 2018 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past few years.
Volcano News group Join our group on facebook: post reports, updates, or other interesting facts about volcanism and volcanic activity worldwide and discuss with other members.