Do All Volcanoes Have Explosive Eruptions? Volcanic eruptions can be explosive, sending ash, gas and lava high up into the atmosphere, or the magma can form lava flows, known as effusive eruptions. Whether an eruption is explosive or effusive largely depends upon the amount of gas in the magma. Why are some volcanoes not explosive?
Which Kind Of Effusive Eruption Is Described As Less Viscous? Basaltic composition magmas are the most common effusive eruptions because they are not water saturated and have low viscosity. What type of volcano has low viscosity? Shield volcanoes Where a volcano produces low viscosity, runny lava, it spreads far from the source and forms a
What Are The 3 Main Types Of Volcanoes? Individual volcanoes vary in the volcanic materials they produce, and this affects the size, shape, and structure of the volcano. There are three types of volcanoes: cinder cones (also called spatter cones), composite volcanoes (also called stratovolcanoes What are the major types of volcanoes? Strictly speaking there
What Is The Relation Of The Types Of Volcanoes To The Type Of Its Eruption? There are two types of eruptions in terms of activity, explosive eruptions and effusive eruptions. Explosive eruptions are characterized by gas-driven explosions that propels magma and tephra. Effusive eruptions, meanwhile, are characterized by the outpouring of lava without significant explosive
Do Volcanoes Go Quiet Before They Erupt? Do volcanoes go quiet before they erupt? Volcanologists have shown that periods of seismic quiet occur immediately before eruptions and can be used to forecast an eruption. The duration of the silence can indicate the level of energy that will be released. Longer quiet periods mean a bigger