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Walking & Study tours VolcanoDiscovery's signature tours for small groups: Discover volcanoes and volcanic areas from close with an expert in their field! These tours have a broad mix of activities and interests from photography, walking, study travel, nature & culture.
Igneous or magmatic rocks The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
Dukono volcano photos Dukono on Halmahera in Indonesia has been in permanent activity for years, often producing ash plumes that drift around the northern part of the island and have become normality.