0
A vesicular lava is a lava with an unusual chemistry and high quantities of dissolved gases such as carbon dioxide and water vapour present. These degas from the lava as the pressure on the lava reduces, effectively the lava bubbles in a process is similar to making honeycomb (the chocolate type). This leaves vesicules or bubbles in the lava which colls and leaves gaps behind. Vesicular lava with all its viods and bubbles in has been known to float as its density is so low.
What else can I help you with?
How does a vesicular texture in a volcanic rock develop?
A vesicular texture in a volcanic rock develops when gas bubbles are trapped in the molten lava as it cools and solidifies. As the magma rises to the surface, the decrease in pressure allows dissolved gases to expand and form bubbles. If the lava solidifies quickly enough, these bubbles become preserved within the rock matrix, resulting in a vesicular texture. Common examples of vesicular volcanic rocks include pumice and scoria.
What type of volcanic rock is extremely vesicular and glassy?
Obsidian is a type of volcanic rock that is extremely vesicular and glassy in appearance. It forms when lava cools quickly with minimal crystal growth, resulting in a smooth texture and shiny appearance.
What type of rock has little to no grain development and has a vesicular texture?
A rock with little to no grain development and a vesicular texture is typically called a vesicular rock. It is formed from a volcanic eruption, where gases trapped in the lava create bubbles or vesicles. The most common example is vesicular basalt.
What is forthy volcanic rocks formed by expanding gas bubbles in erupting lava called?
There are several different rocks that are formed in this manner, depending upon the makeup of the lava. You are probably looking for one of these three answers: pumice scoria vesicular basalt
The presence of vesicular basalts among the lunar rock samples shows that?
the Moon has experienced volcanic activity in the past. Vesicular basalts contain cavities that suggest the presence of gases when the lava solidified, indicating volcanic eruptions on the Moon. This provides evidence of a dynamic geological history on the Moon.
Lava rock with air pockets?
Lava rock with air pockets are known as vesicular lava rock. These air pockets are formed during the solidification process of lava, which traps gas bubbles within the rock. This gives the rock a porous and lightweight texture.
What is the meaning of vesicular?
Of or pertaining to vesicles; esp., of or pertaining to the air vesicles, or air cells, of the lungs; as, vesicular breathing, or normal breathing, in which the air enters freely the air vesicles of the lungs., Containing, or composed of, vesicles or vesiclelike structures; covered with vesicles or bladders; vesiculate; as, vesicular coral; vesicular lava; a vesicular leaf., Having the form or structure of a vesicle; as, a vesicular body.
Does lava have gas?
Yes. Gases may be trapped in lava. These may form bubbles on the surfaces of a flow, giving it a vesicular texture when it cools.
How does a vesicular texture in a volcanic rock develop?
A vesicular texture in a volcanic rock develops when gas bubbles are trapped in the molten lava as it cools and solidifies. As the magma rises to the surface, the decrease in pressure allows dissolved gases to expand and form bubbles. If the lava solidifies quickly enough, these bubbles become preserved within the rock matrix, resulting in a vesicular texture. Common examples of vesicular volcanic rocks include pumice and scoria.
What does pumice mean for rocks and minerals?
Pumice is an extrusive igneous rock which forms when the lava is very frothy from a lot of gas exsoliving out of the lava, it is sort of like an extrime vesicular rock.
What type of volcanic rock is extremely vesicular and glassy?
Obsidian is a type of volcanic rock that is extremely vesicular and glassy in appearance. It forms when lava cools quickly with minimal crystal growth, resulting in a smooth texture and shiny appearance.
What type of rock has little to no grain development and has a vesicular texture?
A rock with little to no grain development and a vesicular texture is typically called a vesicular rock. It is formed from a volcanic eruption, where gases trapped in the lava create bubbles or vesicles. The most common example is vesicular basalt.
What is vesicular texture in rock?
* Vesicular rock texture is generally displayed in extrusive igneous rocks which contain many vesicles of trapped air, such as pumice or scoria. * Igneous rocks containing holes which were produced as gases escaped from the upper part of lava flow.
What is formed when escaping gas whips some of the lava into a foam?
Explosive eruptions and, on solidifying, vesicular ('bubbly') lava. Cut or broken, the vesicles are seen in section as small, rounded hollows. Associated generally with ocean-closing subduction. I can't give American examples, but the old buildings in the the South-West English city of Exeter exhibit lovely examples of light-grey, vesicular lava used for masonry. It was quarried locally: the city is on an extinct volcano.
Igneous feature would you find rocks with a vesicular texture?
You would typically find rocks with vesicular texture in igneous features such as volcanic necks, lava flows, and volcanic ash deposits. Vesicles are voids or cavities left behind by gas bubbles trapped in the cooling magma.
What is forthy volcanic rocks formed by expanding gas bubbles in erupting lava called?
There are several different rocks that are formed in this manner, depending upon the makeup of the lava. You are probably looking for one of these three answers: pumice scoria vesicular basalt
Why is basalt heavier than?
pumice is volcanic ash and it is vesicular. meaning that it has lots of air bubbles in it making it even lighter. basalt is hardened lava. it was exposed and cooled rapidly.
