Geological Knowledge--The Origin of Volcanoes
more infoGeological Knowledge--The Origin of Volcanoes
more infoVolcanic eruptions not only shatter solidified rock into fragments, but also blast molten state magma into pieces. These materials are shot up the air. When they fall and settle on the ground they form different types of tephra.
more infoLaohei Mountain Date of eruption: 1720-1721 AD Elevation (m): 515.9 Average conical base (m): 1,300 Average crater diameter (m): 350 Maximum crater depth (m): 145
more infoYaoquan is a barrier lake formed by volcanic lava from Laohei Mountain. It is 300 metres across from east to west and 900 metres from north to south. Water depth is 2-4 metres. Spring water with CO2 gas gushes out from several openings on the lake b
more infoThe Longmen Stone Village (Block Lava Flow) Scenic Area to the southwest of East Longmen Mountain is a breathtaking volcanic site. Main attractions here are “toppled stone stockades” and “stone ponds” created by deposits of eruption block lava from E
more infoVolcanic barrier lakes were created when lava spewed by Laohei Volcano and Huoshao Volcano blocked the original river. See the following process diagram :
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