Pahoehoe is fast-moving,hot lava that has low viscosity.
Fast flowing lava with low viscosity is called "pahoehoe." This type of lava has a smooth, rope-like texture and tends to move quickly across the surface due to its low viscosity, which allows it to flow easily. Pahoehoe lava often forms when basaltic magma emerges from a volcano.
Lava that is cooler and slower-moving is called "pahoehoe." Pahoehoe lava has a smooth, rope-like or wrinkled surface texture due to its lower viscosity, which allows it to flow more easily compared to aa lava.
Hot, fast-moving lava is typically associated with Hawaiian-style eruptions, which feature low viscosity lava that can flow rapidly down slopes. This type of lava is usually characterized by its high temperature and ability to travel great distances in a short amount of time, posing a significant hazard to surrounding areas. It's crucial for residents near active volcanoes to stay informed about lava flow risks and heed evacuation orders to ensure their safety.
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)
The viscosity of andesitic lava affects its flow behavior during volcanic eruptions. Higher viscosity lava flows more slowly and tends to form thicker, blockier lava flows, while lower viscosity lava flows more easily and can travel further before solidifying. This relationship influences the type and intensity of volcanic eruptions.
Lava with high viscosity is called slica-rich lava
Fast flowing lava with low viscosity is called "pahoehoe." This type of lava has a smooth, rope-like texture and tends to move quickly across the surface due to its low viscosity, which allows it to flow easily. Pahoehoe lava often forms when basaltic magma emerges from a volcano.
mafic
pahoehoe is the more smooth lava flows. a'a is the very jagged, sharp lava.
Lava that is cooler and slower-moving is called "pahoehoe." Pahoehoe lava has a smooth, rope-like or wrinkled surface texture due to its lower viscosity, which allows it to flow more easily compared to aa lava.
Silica content is directly proportional to viscosity, so the higher the silica content of a lava, the higher its viscosity. high viscosity means a lava will be thick and slow moving, hence probably meaning an explosive eruption. lava's with a high viscosity include rhyolite and andesite whereas lava's with a low viscosity (runny ones) include basalt.
Lava movement refers to the flow of molten rock on the Earth's surface, typically during a volcanic eruption. The movement of lava can vary in speed, from slow-moving oozing flows to fast-moving streams of molten rock. Lava flow direction is influenced by topography, gravity, and the viscosity of the lava.
It is thick, slow moving lava called Pyroclastic Flow.also known as high viscosity
Pahoehoe is hot, fast-moving lava that has a low viscosity. AA lava has a cooler temperature and moves more slowly. Quiet eruptions are the type that produce these two types of lava.
Viscosity means how runny it is. Thus a lava with low viscosity will erupt fast and form long, wide spreading lava flows (eg Hawaii) and lavas of high viscosity will erupt slowly and form lava domes (eg Mt. St. Helens).
The measure of a lava's mobility is called viscosity, which refers to the resistance of a substance to flow. Lava with low viscosity is more fluid and flows more easily, while lava with high viscosity is thicker and flows more slowly.
Mount Tambora typically produces highly viscous lava due to its high silica content. This results in the lava being thick and slow-moving, leading to more explosive eruptions.