Volcanic Debris Flow Landscape
A volcanic debris flow is a density current composed of the hot gases and debris produced during volcanic eruptions. The cooled rocks are collectively known as molten pyroclastic rocks. Volcanic debris flows form due to vertical air eruption and columnar collapse, low-pressure super boiling, directional explosions and dome collapses. The Mesozoic volcanic rocks in eastern China are widely distributed volcanic debris flows that are also called ignimbrites. Extensive outcrops can be found in Yandangshan in Zhejiang Province, Baishuiyang in Ningde, Fujian Province, and Hong Kong Global Geopark in Sai Kung.