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Does AA lava have a lot of silica?
no. AA has a relatively low silica content level.
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.
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.
What are the four types of lava that form at hot spots and their characteristics?
Aa is lava that forms a thick ,brittle crust . Pahoehoe is a lava that forms a thin crust. Pillow lava forms when lava erupts underwater. Blocky lava is kool, stiff lava that does not travel far from thr eruption site.
What types of lava come from the San Cristobal volcano?
The San Cristobal volcano in Nicaragua primarily produces basaltic lava, which is low in silica content and flows easily. This type of lava typically results in effusive eruptions with lava flows that can travel long distances from the volcano. The lava from the San Cristobal volcano tends to be relatively fluid and forms shield volcanoes.
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
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
Is pumice pahoehoe or AA?
pahoehoe is smooth and rope like sufaces. Aa is sharp and jaged last pillow lava is pressure billds up in side the lava untill it craks then it pours out forming yet another pillow on the last one.
Is pahoehoe lava more or less viscous than aa lava?
Pahoehoe lava is less viscous than aa lava. This lower viscosity allows pahoehoe to flow smoothly and form a rope-like texture, while aa lava, being more viscous, breaks apart as it moves, creating a rough, jagged surface. The difference in viscosity is largely due to the temperature and gas content of the lava as it erupts.
