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As gas-rich lava erupts, the decrease in pressure allows dissolved gases, such as water vapor and carbon dioxide, to expand rapidly and form bubbles. This process, known as degassing, can lead to explosive eruptions if the gas escapes violently. The release of gas can also cause the lava to become more viscous, influencing the eruption style and the formation of volcanic features like ash clouds and pyroclastic flows.
What else can I help you with?
Does balsaltic lava have a high gas content?
Basaltic lava typically has a low gas content compared to other types of lava such as andesitic or rhyolitic. This is because basaltic lava is less viscous, allowing gases to escape more easily, resulting in less gas being trapped within the lava as it erupts.
Coned-shaped mountains that spew out lava or gas?
Those are likely volcanoes, which are formed when magma from beneath the Earth's crust erupts onto the surface. The lava and gas that spew out are a result of the intense pressure building up within the volcano.
Lava erupts from what part of the volcano?
The magma chamber is where the lava begins the eruption process.
When mount merapi erupts do they try and stop the lava flow?
No. Recent eruptions of Mount Merapi have produced pyroclastic flows instead of lava flows. Pyrolastic flows are fast-moving currents of hot ash, rock, and gas. There is no way of stopping or deflecting them.
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.
What erupts from volcanoes along with lava?
Volcanoes can erupt ash, gas, and pumice in addition to or instead of lava.
Does lava turn into a gas?
Lava does not turn directly into a gas. When lava cools and solidifies it can form rocks like basalt or obsidian. However, if the lava contains volatile gases, these can be released as the lava erupts and cools, creating gas emissions.
Does balsaltic lava have a high gas content?
Basaltic lava typically has a low gas content compared to other types of lava such as andesitic or rhyolitic. This is because basaltic lava is less viscous, allowing gases to escape more easily, resulting in less gas being trapped within the lava as it erupts.
What does heat have to do with pumice?
Pumice is a volcanic rock. It forms when a volcano erupts gas-rich molten rock. Some of this may form a sort of foamy lava which cools rapidly from an extremely high temperature, locking the bubbles in place.
When and why did lava flows?
Lava flows occur when molten rock, or magma, erupts from a volcano onto the Earth's surface. This usually happens during volcanic eruptions, when pressure builds up beneath the Earth's crust and forces magma to the surface. Lava flows can vary in size and speed, depending on the viscosity and gas content of the magma.
What is the harmful effect of volcano?
1. It produces extreme amounts of carbon gas when it erupts, harming the environment 2. The lava/magma can destroy terrain
Coned-shaped mountains that spew out lava or gas?
Those are likely volcanoes, which are formed when magma from beneath the Earth's crust erupts onto the surface. The lava and gas that spew out are a result of the intense pressure building up within the volcano.
Lava erupts from what part of the volcano?
The magma chamber is where the lava begins the eruption process.
Why are volcano's bad?
Because they spew lava and ash everywhere, which means that it would destroy property and vegetation. Volcanoes also create a poisonous gas for humans called carbon monoxide.
What is a pumice source?
Pumice is produced in the lava from certain volcanic eruptions. It forms from gas-rich andesitic or rhyolitic lava and has so many gas bubbles that some pumice can float on water.
What is the difference between plasma and lava?
Plasma is the fourth state of matter, in which electrons are stripped from atoms, leading to a high-energy, electrically charged gas. Lava, on the other hand, is molten rock that erupts from a volcano and flows on the Earth's surface. Plasma is commonly found in stars and lightning, while lava is found in volcanic eruptions.
When mount merapi erupts do they try and stop the lava flow?
No. Recent eruptions of Mount Merapi have produced pyroclastic flows instead of lava flows. Pyrolastic flows are fast-moving currents of hot ash, rock, and gas. There is no way of stopping or deflecting them.
