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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 themselves
Shield volcanoes usually erup by fountaining or extruding lava.
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How much lava comes out of a volcanoes?
The amount of lava that comes out of a volcano can vary greatly depending on the eruption type and size of the volcano. In general, volcanoes can produce anywhere from a few cubic meters to millions of cubic meters of lava during an eruption. Some eruptions, such as those from shield volcanoes, can produce lava flows that extend for tens of kilometers.
What type of lava does a quiet eruption produce?
A quiet eruption typically produces basaltic lava. This type of lava is low in viscosity and flows easily, resulting in gentle, slow-moving lava flows. It often forms shield volcanoes with broad and gently sloping sides.
What type of eruption produces a gentle flow of lava?
A type of eruption that produces a gentle flow of lava is called an effusive eruption. In these eruptions, lava flows steadily and slowly, typically without explosive activity. The lava tends to have low viscosity, allowing it to flow easily across the surface of the volcano.
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 are the 4 types of volcanoes which exist and what type of lava do they produce?
shield, cinder cone, composite, and dome. They produce basaltic lava, rhyolite lava and andesite lava.
How much lava comes out of a volcanoes?
The amount of lava that comes out of a volcano can vary greatly depending on the eruption type and size of the volcano. In general, volcanoes can produce anywhere from a few cubic meters to millions of cubic meters of lava during an eruption. Some eruptions, such as those from shield volcanoes, can produce lava flows that extend for tens of kilometers.
What type of lava does a quiet eruption produce?
A quiet eruption typically produces basaltic lava. This type of lava is low in viscosity and flows easily, resulting in gentle, slow-moving lava flows. It often forms shield volcanoes with broad and gently sloping sides.
What type of eruption produces a gentle flow of lava?
A type of eruption that produces a gentle flow of lava is called an effusive eruption. In these eruptions, lava flows steadily and slowly, typically without explosive activity. The lava tends to have low viscosity, allowing it to flow easily across the surface of the volcano.
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 are the 4 types of volcanoes which exist and what type of lava do they produce?
shield, cinder cone, composite, and dome. They produce basaltic lava, rhyolite lava and andesite lava.
What type of volcanoes make up the Hawaiian islands and why is it easy to determine?
Shield volcanoes make up the Hawaiian islands. These volcanoes have low, broad profiles and are typically formed by the eruption of low-viscosity basaltic lava. It is easy to determine the type of volcanoes because of their distinctive shape and the lava flows they produce.
Do volcanoes always produce lava flows?
No. Lava flow in a volcanic eruption is a factor of the temperature, chemistry, and amount of trapped gas in the lava. Highly viscous, felsic, gas charged magmas tend to explode upon eruption. Low viscosity, basaltic magmas tend to flow upon eruption.
Why are shield volcanoes relatively safe?
Eruptions at shield volcanoes are almost never explosive and do not produce pyroclastic flows, mudflows, or large ash clouds. Instead they generally produce slow-moving lava flows that are generally easy to escape.
Which types of eruptions produce pahoehoe lava?
Pahoehoe lava is typically produced during effusive, non-explosive eruptions that have low viscosity and high temperatures. These types of eruptions are commonly associated with shield volcanoes, where the lava flows smoothly and forms a ropey or wrinkled surface as it cools.
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.
An eruption of thin fluid lava would most likely be?
I'm confused on the basically of our human element's. Everyone of our feature's are componets of another mans feature's. Please now answer with me, An eruption of thing fluid lava would most likely be, Shield? Am i correct?
What do shield volcanoes form?
Lava
