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Name the two types of lava?
The two main types of lava are pahoehoe, which has a smooth, rope-like texture, and aa, which has a rough, jagged texture. They differ in their viscosity and flow characteristics, with pahoehoe being more fluid and aa being more viscous.
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 are the differences between the pahoehoe and AA?
Aa is slower, cooler, and has less sillica than pahoehoe. Pahoehoe is faster and moves quickly, and phoehoe has more silica, and is also darker than Aa
What kind of lava is silica poor?
Silica-poor lava is called mafic lava. It is low in silica content and high in iron and magnesium, which makes it less viscous and more fluid compared to silica-rich lava. Mafic lava typically erupts at higher temperatures and flows more rapidly, resulting in the formation of basaltic rocks.
Why is the silica content of lava important?
The more silica crystal within the magma, the more viscous the magma is, because of crystals sticking together. So magma with low silica content is runny, and wiht just flow gently out of a volcano, like in hawai, but viscous (sticky, like honey) magma will not, and gas gets trapped within it, and then explodes out, cause large scale explosive erruptions.
Name the two types of lava?
The two main types of lava are pahoehoe, which has a smooth, rope-like texture, and aa, which has a rough, jagged texture. They differ in their viscosity and flow characteristics, with pahoehoe being more fluid and aa being more viscous.
Was krakatau's erupted by lava rich in silica or lava low in silica?
lava rich in silica
What type of lava did Eyjafjallajökull produce?
Eyjafjallajökull volcano produced a type of lava called basaltic lava. Basaltic lava is low in silica content, which makes it less viscous and allows it to flow more easily over the surface, leading to the formation of shield volcanoes like Eyjafjallajökull.
What do lava flow made of pahoehoe and AA indicate about the type of volcanic eruptions that occured?
It was a quiet eruption and it was low in silica
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 is the difference between pahoehoe and AA lava?
The difference between Pahoehoe lava and AA lava is that pahoehoe lava is smooth and AA lava is jagged.
What type of lava is erupted from Mount Kilimanjaro?
Mt. Fuji is Japan's highest mountain. The lava that comes out of this volcano is silica-poor lava that is very thick and chunky.
What are the differences between the pahoehoe and AA?
Aa is slower, cooler, and has less sillica than pahoehoe. Pahoehoe is faster and moves quickly, and phoehoe has more silica, and is also darker than Aa
Does pillow lava have high silica?
No. Pillow lava is basaltic, so it has a low silica content.
What kind of lava is silica poor?
Silica-poor lava is called mafic lava. It is low in silica content and high in iron and magnesium, which makes it less viscous and more fluid compared to silica-rich lava. Mafic lava typically erupts at higher temperatures and flows more rapidly, resulting in the formation of basaltic rocks.
What are the three types of lava?
Pahoehoe lava, Aa lava, and Blocky lava
Why is the silica content of lava important?
The more silica crystal within the magma, the more viscous the magma is, because of crystals sticking together. So magma with low silica content is runny, and wiht just flow gently out of a volcano, like in hawai, but viscous (sticky, like honey) magma will not, and gas gets trapped within it, and then explodes out, cause large scale explosive erruptions.
