ようがんえんちょうきゅう
溶岩円頂丘
1. lava dome
2. Lava domeIn volcanology, a lava dome is a roughly circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. The geochemistry of lava domes can vary from basalt to rhyolite although most preserved domes tend to have high silica content. The characteristic dome shape is attributed to high viscosity that prevents the lava from flowing very far. This high viscosity can be obtained in two ways: by high levels of silica in the magma, or by degassing of fluid magma.
Read “Lava dome” on English Wikipedia
Read “溶岩円頂丘” on Japanese Wikipedia
Read “Lava dome” on DBpedia
Read “Lava dome” on English Wikipedia
Read “溶岩円頂丘” on Japanese Wikipedia
Read “Lava dome” on DBpedia
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