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Lava that forms shield volcanoes is typically basaltic in composition, which has a low viscosity and allows gases, including water vapor, to escape easily during eruptions. However, the presence of water in the magma can contribute to explosive activity if it's trapped, but shield volcanoes generally have less explosive eruptions due to the lower water content and higher fluidity of the lava. This combination allows for the efficient flow of lava over large distances, creating the broad, gently sloping profiles characteristic of shield volcanoes. Thus, while water content is present, it's managed in a way that promotes effusive rather than explosive eruptions.
What else can I help you with?
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 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.
How many volcanoes erupted so far?
well , that is a good question ! About 1,300 has happened in the last 10,000 year. Most of these are shield volcanoes. Shield volcanoes are found under water or and form easily. three quarters ( 3/4 ) of volcanoes are shield volcanoes. SO if you subtract all of the shield volcanoes from the amount of volcanoes that have happened in the last 10,000 years it will come up to 6,000 eruptions in the last 10,000 years. This is not including under water or shield volcanoes. WELL, that's all . BYE ! (:
What forms from lava that is higher in water and silica content than lava that forms shield volcanoes?
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.
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.
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.
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.
How many volcanoes erupted so far?
well , that is a good question ! About 1,300 has happened in the last 10,000 year. Most of these are shield volcanoes. Shield volcanoes are found under water or and form easily. three quarters ( 3/4 ) of volcanoes are shield volcanoes. SO if you subtract all of the shield volcanoes from the amount of volcanoes that have happened in the last 10,000 years it will come up to 6,000 eruptions in the last 10,000 years. This is not including under water or shield volcanoes. WELL, that's all . BYE ! (:
What forms from lava that is higher in water and silica content than lava that forms shield volcanoes?
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.
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.
How a shield volcano is formed?
shield volcanoes are formed by lava flows or low viscosity lava that flows easily...
What type of eruption and lava do shield volcanoes produce?
Shield volcanoes erupt in a flowing, non-explosive manner, the lava flowing for extremely long distances creating the gentle shield shaped form. Eruptions at shield volcanoes are only explosive if water somehow gets into the vent, otherwise they are characterized by low-explosive fountaining that forms cinder cones and spatter cones at the vent. In a shield volcano, 90% of the volcano is lava rather than pyroclastic material. Due to high magma supply rates, the lava is hot and changes very little after it is generated. A common product of hotspot volcanism, shield volcanoes can also be found along subduction-related volcanic arcs or all by themselvesShield volcanoes usually erup by fountaining or extruding lava.
Is a shield volcano non explosive or explosive?
Shield volcanoes are generally not explosive. However, soemtimes a type of explosive event called a phreatic eruption can occur if the magma comes in contact with water.
Is a shield volcano nonexplosive or explosive?
shield volcanoes are only explosive if water somehow gets into the vent
Do volcanoes disappear?
Volcanoes don't not exactly "close up" but either get clogs up when the rising magma cools or collapse. When the volcanoes collapse it forms a caldera. These calderas can fill with water making a lake.
Is Shield volcanoes found along subduction zones?
Cone volcanoes which are likely to erupt explosively are found at subduction zones. Spreading zones (constructive plate boundaries) and hot spots produce quieter volcanoes because their lava is thinner. The ones at hot spots are shield volcanoes.
