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canthentian volcano
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What slopes does a shield volcano have?
very broad volcanoes with gentle slopes formed by basalt lava flow are what shield volcano slopes have
Can you outrun a basaltic lava flow coming toward you?
In most cases, yes. Many basaltic lava flows don't even move at walking speed. However, there is at least one exception: the basaltic lava flows on the steep slopes of Mount Nyiragongo in Africa can move at up to 60 mph.
Why would pahoehoe and a'a lava erupt from shield volcanoes?
Pahoehoe and a'a are textural variaties of basaltic lava, which has a low viscosity, meaning it flows fairly easily. This is the reason for the gentle slopes of shield volcanoes.
Is lava butte basaltic or granitic lava flow?
A lava butte is generally basaltic lava. Granitic lava flows (called rhyolitic when they form at the surface) are rare and do not cover much ground.
Why do gentle eruptions of lava produce gentle sided volcanoes?
Generally, when a volcano produces a gentle eruption the lava has a very low viscosity (it is very runny). This allows the lava to spread out quickly after it has exited the volcano but before it cools and hardens. This means that the lava will be able to spread further from the eruption site and thus gentle slopes are created. In a strong eruption, lava with a higher-viscosity is thrown out along with some rock fragments, this lava cannot flow as far away before it cools and so the volcano has steep slopes. Hope that helps!
What slopes does a shield volcano have?
very broad volcanoes with gentle slopes formed by basalt lava flow are what shield volcano slopes have
Can you outrun a basaltic lava flow coming toward you?
In most cases, yes. Many basaltic lava flows don't even move at walking speed. However, there is at least one exception: the basaltic lava flows on the steep slopes of Mount Nyiragongo in Africa can move at up to 60 mph.
Does basaltic or rhyolitic lava flow faster?
Basaltic lava flows much faster than ryholitic lava.
Why would pahoehoe and a'a lava erupt from shield volcanoes?
Pahoehoe and a'a are textural variaties of basaltic lava, which has a low viscosity, meaning it flows fairly easily. This is the reason for the gentle slopes of shield volcanoes.
Is lava butte basaltic or granitic lava flow?
A lava butte is generally basaltic lava. Granitic lava flows (called rhyolitic when they form at the surface) are rare and do not cover much ground.
Why do gentle eruptions of lava produce gentle sided volcanoes?
Generally, when a volcano produces a gentle eruption the lava has a very low viscosity (it is very runny). This allows the lava to spread out quickly after it has exited the volcano but before it cools and hardens. This means that the lava will be able to spread further from the eruption site and thus gentle slopes are created. In a strong eruption, lava with a higher-viscosity is thrown out along with some rock fragments, this lava cannot flow as far away before it cools and so the volcano has steep slopes. Hope that helps!
What type of basaltic lava flow has a fairly smooth unfragmented ropy surface?
Pahoehoe lava.
Does basalt or rhyolite flow faster?
Basaltic lava flows much faster than ryholitic lava.
Would the typemagma mean the Eyjafjallajokull Volcano has high medium or low in viscosity?
And what was the type magma from the eyjafjell volcano? It was BASALTIC and baslatic magma is a LOW viscosity, which means when erupted the lava flows easily on very gentle slopes.
Which type of lava-basaltic lava or rhyolitic lava flows faster and why?
Basaltic flows much faster than rhyolite. Rhyolite is higher viscosity. Find a video of a basaltic lava flow like Hawaii, it flows like water when it's hot. Rhyolite eruptions usually act more like toothpaste if they're slow, or an explosion if fast.
Very broad volcano with gentle slopes formed from basalt lava?
shield volcano
Is it basic lava or basaltic lava?
It's basaltic lava, not basic.
