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low silica content
(basaltic magma)
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What is the silica content of magma that has low viscosity?
low silica content (basaltic magma)
WHAT ARE THE THREE TYPES OF MAGMA AND THE DIFFERENCES?
The three types of magma are basaltic, andesitic, and rhyolitic. They differ in their silica content, viscosity, and eruptive behavior. Basaltic magma has low silica content, low viscosity, and tends to erupt quietly, while rhyolitic magma has high silica content, high viscosity, and tends to erupt explosively. Andesitic magma falls in between these two in terms of composition and behavior.
What 3 factors determine magma viscosity?
The three elements that determine viscosity in magma are:TemperatureSilicaOxides (gases)Viscosity changes the way in which magma will flow. Magma with low viscosity will flow much more easily than high viscosity magma.
Magma flows easily when it is low in?
silica content. High temperature and low silica content in magma allow for easier flow due to reduced viscosity. This type of magma often results in non-explosive volcanic eruptions with lava flows.
Does an increase in silica increase the viscosity of magma?
Yes. Viscosity is the resistance of a fluid to flowing. A high viscosity means low flowing (I specifically mention this because this is a huge pitfall) When silica content increases, and when temperature decreases, the viscosity of a magma increases along with it.
What type of magna has a low silica content?
Magma with low silica content is typically referred to as mafic magma. Mafic magma is characterized by its high temperature and low viscosity, which allows for the eruption of lava flows. This type of magma is commonly associated with basaltic rocks.
What are the 3 types of magma?
basaltic magma ,Andesitic magma and Rhyolitic magma
What is magma that has a low silica content called?
Magma with low silica content is called mafic magma. It is characterized by its high temperature, low viscosity, and dark-colored minerals like olivine and pyroxene. Mafic magma typically erupts from shield volcanoes and is associated with basaltic rocks.
What is a low-silica magma?
A magma containing not much silica (= SiO2). For example: a basaltic magma. These magma's have a low viscosity since the lower the SiO2-content, the lower the viscosity; and hence flow easily (↔ a felsic magma).
What is the relationship between silica content and viscosity?
Silica content in a material directly affects its viscosity. Higher silica content leads to higher viscosity due to the formation of stronger bonds between silica molecules, which hinders flow and increases resistance to deformation. Low silica content results in lower viscosity as there are fewer bonds and the material flows more easily.
Does the increase in silica increase the viscosity of a magma?
it is normally intermediate flow because of the silica content.
Magma that is low in silica and produces nonexplosive eruptions?
Low viscosity mafic magma.
