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Do shield volcanoes have high silica or low silica?
Shield volcanoes have low silica magma, which is more fluid and runny compared to magma with higher silica content. This low silica content contributes to the gentle, flowing eruptions characteristic of shield volcanoes.
Does the lava that forms shield volcanoes probably have a lot of silica or water in it?
No. Shield volcanoes form from basaltic lava with a low silica content and a low water content.
Do shield volcanoes have high silica content in the lava?
No, shield volcanoes typically have low silica content in their lava, which results in fluid-like, runny eruptions. This low silica content allows for the lava to flow easily and create the wide, gentle slopes characteristic of shield volcanoes.
Do shield volcanoes have a lot of silica or water?
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.
Does the composite volcano have high viscosity?
Composite volcanoes typically have higher viscosity lava compared to shield volcanoes, resulting in more explosive eruptions. The high silica content in the magma of composite volcanoes contributes to this higher viscosity. However, the exact viscosity of the lava can vary depending on specific factors such as temperature and gas content.
Do shield volcanoes have high silica or low silica?
Shield volcanoes have low silica magma, which is more fluid and runny compared to magma with higher silica content. This low silica content contributes to the gentle, flowing eruptions characteristic of shield volcanoes.
Does the lava that forms shield volcanoes probably have a lot of silica or water in it?
No. Shield volcanoes form from basaltic lava with a low silica content and a low water content.
Do shield volcanoes have high silica content in the lava?
No, shield volcanoes typically have low silica content in their lava, which results in fluid-like, runny eruptions. This low silica content allows for the lava to flow easily and create the wide, gentle slopes characteristic of shield volcanoes.
What kind of volcano forms from lava that is higher in water and silica content than lava that forms shield volcanoes?
cinder cone
Do shield volcanoes have a lot of silica or water?
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.
Why do shield volcanoes happen in ocean more than on land?
Shield volcanoes produce flows of mafic lava, also called basaltic lava, which has a lower viscosity and low silica content. Oceanic crust has the same composition and so it is fairly easy for shield volcanoes to form here. Continental crust has a higher silica content. As a result, many continent based volcanoes produce much more viscous lavas which produce stratovolcanoes rather than shield volcanoes.
How are shield volcanoes and cinder cone volcanoes somewhat same?
Both erupt basaltic lava, which has a low silica content and a high temperature.
Silica-rich magma erupts from the shield volcanoes giving them there broad flat shape?
False. The magma of shield volcanoes is silica-poor.
Does the composite volcano have high viscosity?
Composite volcanoes typically have higher viscosity lava compared to shield volcanoes, resulting in more explosive eruptions. The high silica content in the magma of composite volcanoes contributes to this higher viscosity. However, the exact viscosity of the lava can vary depending on specific factors such as temperature and gas content.
What kind of volcano form from lava that is higher in water and silica content than lava that forms shield volcanoes?
Explosive stratovolcanoes form from lava that is higher in water and silica content than the lava that forms shield volcanoes. The high viscosity of this type of lava traps gases, leading to explosive eruptions that can eject ash, rock fragments, and lava at high speeds. This creates steep-sided volcanic cones with alternating layers of ash, lava, and volcanic rocks.
What type of rock makes shield volcanoes?
Shield volcanoes are typically formed from basaltic lava flows, which are low in silica content and very fluid. This type of lava allows for the gradual buildup of wide, gently sloping volcanic cones characteristic of shield volcanoes.
Do shield volcanoes have high viscosity?
No, shield volcanoes have low viscosity lava due to their composition of basaltic magma, which has low silica content. This low viscosity allows the lava to flow easily and spread out over a wide area, resulting in the gentle, sloping shape characteristic of shield volcanoes.
