Aa
AA
AA
these are two ways on how: 1. a water spray can cool down a larva flow, 2. and using really heavy stones (10-40 tones)
pahoehoe is the more smooth lava flows. a'a is the very jagged, sharp lava.
Pahoehoe lava is a cool, slow-moving type of lava with a smooth, ropey texture. It forms when low-viscosity basaltic lava flows and cools, creating distinctive ridges and folds on the surface. Pahoehoe lava flows can sometimes be observed in Hawaii, where they are a common feature of volcanic activity.
It is thick, slow moving lava called Pyroclastic Flow.also known as high viscosity
the most dangerous type of lava is sticky lava because slow moving acid lava is more vicious
Lava flows are usually slow moving, giving people time to escape.
The movement of a lava lamp is called lava lamp flow, where the waxy substance inside the lamp rises, falls, and undulates due to the heat from the light bulb at the base of the lamp. This creates a mesmerizing, slow-moving, and fluid-like motion.
During a nonexplosive eruption, lava flows out from the volcano in a slow and steady manner. The lava is typically less viscous, allowing it to flow smoothly and cover greater distances. This type of eruption is characterized by the slow-moving streams of lava that can create new land formations as they cool and solidify.
Lava on a dome volcano typically oozes out slowly due to its high viscosity and sticky nature. This slow flow allows domes to grow vertically and can occasionally lead to small rockfalls and collapses. The slow-moving lava poses less risk to surrounding areas compared to explosive eruptions seen in other types of volcanoes.
The difference in the flow of lava is determined by how viscous the magma of the volcano is. For Stratovolcanoes like those seen in the Cascades Range of the North Western United States, there magma is normally very sticky as it has a high concentration of Silica. The higher the concentration of silica within magma makes it stickier and will make it resist flow. This is why Stratovolcanoes often will erupt explosively, as there is no way for the gasses to simply passively leave during a lava flow. This viscosity traps the gasses and makes explosive eruptions much more likely as once the gasses finally are able to escape the level of gasses have built up to catastrophic levels within the volcano. On the other hand Hawaiian style volcanoes have a very low silica content within their magma chamber, and therefore have very flowable lava. This allows for the fire fountains and lava channels that are often times shown in magazines. These eruptions are often times passive in nature, as the gasses dissolved in the magma are easily able to escape during an eruption.