Blocky Lava, Pahoehoe Lava, Aa Lava, Pillow Lava
Chat with our AI personalities
The two main types of lava are pahoehoe, which has a smooth, rope-like texture, and aa, which has a rough, jagged texture. They differ in their viscosity and flow characteristics, with pahoehoe being more fluid and aa being more viscous.
Generally, lava is classified by its composition which may range from highly felsic (high in silica) to ultramafic (low in silica). Most lava can be classified as felsic or mafic.
The two types of lava I know about is AA {pronounced ah-ah} and Pahoehoe {pronounced fa-hoe-hoe}. AA is chunky and Phahoehoe flows like warm honey.
basaltic lava can form a'a, pahoehoe, or pillow lava.
Different types of lava result in different types of volcanic eruptions. Basaltic lava, which is low in viscosity, typically leads to effusive eruptions characterized by gentle flows. Andesitic or dacitic lava, with higher viscosity, can cause explosive eruptions with pyroclastic flows and ash clouds. Rhyolitic lava, the most viscous type, tends to form dome eruptions with slow-moving lava flows and explosive activity.
Aa lava is a basaltic lava with a flow characterized by rough surfaces of clinker.
The two types of igneous rock are extrusive, those formed from molten material at or on the surface; and intrusive, those that solidify from molten material below ground.
Lava and ash are two things that can be expelled from a volcano during an eruption. Lava is molten rock that flows out of the volcano, while ash consists of tiny rock particles and glass fragments that can be carried by the wind.