Hijiori volcano is a caldera about 15 km northeast of Gassan volcano in Yamagata Prefecture in northern Honshu, Japan. It formed about 12,000 years ago during an eruption that produced dacitic pyroclastic flows and tephra fall to the east until the Pacifi Ocean. A lava dome grew at the end of the eruption. There are many hot springs at and near the volcano. These are among the main attractions of the area.
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.
Dallol hot springs: One of the most bizarre landscapes on earth: Dallol is a vast and very active hydrothermal field creating a colorful array of hot springs, small geysers, salt towers, colorful lakes and ponds in the middle of the deepest part of the Danakil desert and the Karum salt lake.
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