because
the silica content affects the viscosity of the magma. an acidic rock (high silica content) will produce a more runny, less viscous magma, this type of magma has the ability to flow more easily and release pressure of a long period of time (Hawaii). whereas basic magmas contain more silica, this causes more viscous magma, which has the ability to build up pressure in a magma chamber until the pressure is too great and it has explosive characteristics, eg Mt St Helens. safe mate
The higher the silica content of the magma, the more viscous the magma.
The higher the viscosity of the magma, the more explosive the eruptions of the volcano tend to be.
Lower silica content lavas tend to form shield volcanoes (such as the type formed on Hawaii) where the lava can flow very long distances as it has a much lower viscosity.
Yes. Silica increases the viscosity of magma, and water is a volatile component, Both factors increase the chances of an eruption being explosive.
I know silica makes it harden faster, and is usually in exploding eruptions.
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It depends on what you mean. Are there quartz crystals on earth that are growing today? Yes. Is that quartz crystal in your rock collection still growing? No. Quartz crystals often form when water with super concentrated silica in it comes into contact with a surface (such as a very small crystal) onto which the silica can precipitate. Crystals also form when magma/lava cools and the different elements in the mixture differentiate into various minerals.
Petrification occurs when body parts of the organism are replaced by minerals dissolved in ground water. For example, a buried tree may have its wood replaced over millions of years by silica that is dissolved in the surrounding ground water.
The ability for something to float on another substance is related to the density and since ice is LESS dense than water it would float on top of water, not water on top of ice.In other words, water is more dense than ice and thus no.
they both have different parts. ocean water can be classified under both. both have to have at least two elements
See the related link for a conversion chart.
because
The more gases, water vapor and silica there is in magma the bigger the explosiveness of a volcanic eruption.
Silica is in soluble in water.
If its been demineralized there should be barely any silica or trace of silica in it.
The more water content that is trapped in a volcano the bigger the explosion in the volcano is.
Volcanos
almost no silica in ocean water but most of its the earths crust.
Well, I know that Silica comes from inside of the water, but I know nothing about the sand part.
low water and low silica: the eruption is not that strong; low water and high silica: the magma comes out like a toothpaste coming out of its tube high water and low silica: the lava flows fast and strong. high water and high silica: lava is pasty and thick and flows strongly
Is silica from silicon sand? I am allergic to silocon.
Water.
yes there are