because
Water, gas content, and silica content are three substances that can affect the explosiveness of volcanic eruptions. Higher water content can generate more explosive eruptions, whereas higher gas content and higher silica content can also contribute to increased explosiveness.
No. Shield volcanoes form from basaltic lava with a low silica content and a low water content.
Shield volcanoes have low silica content and low water content in their magma. This results in fluid lava flows that spread out over large distances, creating the characteristic broad, gently sloping shield shape.
High water content can increase the explosiveness of volcanoes because it promotes the formation of steam and gas bubbles in magma, building up pressure that can lead to explosive eruptions. When water interacts with magma, it can cause rapid expansion and fragmentation of the magma, creating explosive eruptions with ash clouds and pyroclastic flows.
D. Volcanoes that have large amounts of silica
The more gases, water vapor and silica there is in magma the bigger the explosiveness of a volcanic eruption.
Water, gas content, and silica content are three substances that can affect the explosiveness of volcanic eruptions. Higher water content can generate more explosive eruptions, whereas higher gas content and higher silica content can also contribute to increased explosiveness.
No. Shield volcanoes form from basaltic lava with a low silica content and a low water content.
Shield volcanoes have low silica content and low water content in their magma. This results in fluid lava flows that spread out over large distances, creating the characteristic broad, gently sloping shield shape.
High water content can increase the explosiveness of volcanoes because it promotes the formation of steam and gas bubbles in magma, building up pressure that can lead to explosive eruptions. When water interacts with magma, it can cause rapid expansion and fragmentation of the magma, creating explosive eruptions with ash clouds and pyroclastic flows.
D. Volcanoes that have large amounts of silica
cinder cone
because
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.
Lava that is higher in water and silica content tends to be more viscous and can lead to explosive eruptions. This type of lava forms stratovolcanoes, also known as composite volcanoes, which are characterized by steep slopes and alternating layers of lava flows, ash, and volcanic rocks. Examples include Mount St. Helens and Mount Fuji.
Mount Cleveland, a stratovolcano in Alaska, typically has a high silica content in its volcanic rocks, which is common for volcanoes in the Aleutian arc. The specific silica content can vary depending on the eruption. The water content in Mount Cleveland's magma is also high, contributing to its explosive eruptions.
Silica is in soluble in water.