If the temperature of the magma is high and it contains low silica, the lava will likely have a low viscosity, allowing it to flow more easily. This results in fluid lava flows that can travel long distances from the volcano. Such basaltic lava typically erupts gently, leading to the formation of broad, shield volcanoes rather than explosive eruptions. Overall, low-silica magma contributes to a more effusive volcanic activity.
A volcano with magma that contains large volumes of gases but not silica and water is typically a shield volcano. These volcanoes have low viscosity magma that allows gases to escape easily, resulting in relatively gentle eruptions characterized by lava flows.
silica content
Basaltic magma contains small amounts of silica and has a low viscosity, meaning it is relatively fluid and flows easily.
Basaltic lava flows easily due to its low viscosity, which is caused by its low silica content and high temperature. This type of lava can travel long distances and create smooth, gentle slopes as it cools.
The Mayon Volcano in the Philippines typically has basaltic andesite lava flows, which are characterized by their high silica content and intermediate viscosity, allowing for slow-moving lava flows. This type of lava results in cone-shaped volcanoes with steep slopes.
A volcano with magma that contains large volumes of gases but not silica and water is typically a shield volcano. These volcanoes have low viscosity magma that allows gases to escape easily, resulting in relatively gentle eruptions characterized by lava flows.
silica content
Basaltic magma contains small amounts of silica and has a low viscosity, meaning it is relatively fluid and flows easily.
Basaltic lava flows easily due to its low viscosity, which is caused by its low silica content and high temperature. This type of lava can travel long distances and create smooth, gentle slopes as it cools.
The Mayon Volcano in the Philippines typically has basaltic andesite lava flows, which are characterized by their high silica content and intermediate viscosity, allowing for slow-moving lava flows. This type of lava results in cone-shaped volcanoes with steep slopes.
Yes, shield volcanoes are typically characterized by low silica magma, which has low viscosity and flows easily to create broad, gently sloping profiles. This type of volcano forms from repeated, non-explosive eruptions that result in layers of basaltic lava flows.
An eruption with thin, runny magma containing very little silica is called an effusive eruption. This type of eruption usually results in lava flows that can travel long distances from the volcano.
silica content. High temperature and low silica content in magma allow for easier flow due to reduced viscosity. This type of magma often results in non-explosive volcanic eruptions with lava flows.
Mount Erebus primarily features a type of silica known as basaltic lava, which typically has a low to moderate silica content, around 45-55%. This composition contributes to the volcano's predominantly fluid lava flows and active lava lake. The presence of silica affects the viscosity of the magma, influencing the eruptive behavior of the volcano.
quiet nonexplosive eruptionsquiet nonexplosive eruptionsquiet nonexplosive eruptions
A volcano that forms from lava containing relatively small amounts of gases and silica is typically a shield volcano. These volcanoes have broad, gently sloping sides and are primarily built up by the flow of low-viscosity basaltic lava, which can travel long distances. The low gas content allows for less explosive eruptions, resulting in relatively calm lava flows. Examples include Mauna Loa and Kilauea in Hawaii.
The amount of silica and water affect the viscosity of the magma. The more viscous the magma, the slower the flow rate and the shorter and the thicker the flows. Silica makes for a more viscous magma.