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What mineral that affects magma thickness?
The mineral that affects magma thickness is silica. Magma with high silica content tends to be more viscous, resulting in thicker magma. Conversely, magma with low silica content is less viscous and flows more easily.
What is a magma's viscosity directly related to?
A magma's viscosity is directly related to its temperature and silica content. Higher temperature and lower silica content typically result in lower viscosity, making the magma more fluid and runny. Conversely, lower temperature and higher silica content lead to higher viscosity, resulting in a thicker, more sticky magma.
What two properties of magma determine what kind of volcano will form?
The silica content and the gas content of magma are two properties that determine what kind of volcano will form. Magma with low silica content and low gas content tends to form effusive, shield volcanoes, while magma with high silica content and high gas content tends to form explosive, stratovolcanoes.
Are igneous rocks like gabbro and basalt silica-deficient with high magnesium and iron?
Yes, gabbro and basalt are silica-deficient igneous rocks that have high magnesium and iron content. Gabbro is a coarse-grained rock, while basalt is fine-grained due to differences in cooling rates. Both rocks form from the cooling of magma with low silica content.
What is the relationship between magma and minerals?
No, magma is molten rock, and it is a semi liquid that exists below the surface (when it's above the surface, it's called lava). When magma cools underground it becomes an intrusive igneous rock which is composed of combinations of various minerals.
What is silica content of magma that has a low viscosity?
low silica content (basaltic magma)
What is the silica content of magma that has low viscosity?
low silica content (basaltic magma)
How does silica content and viscosity effect igneous rocks?
Silica content affects the viscosity of igneous rocks because higher silica content leads to higher viscosity, making the magma more resistant to flow. Rocks with higher silica content tend to form more explosive volcanic eruptions due to the build-up of gas pressure. Lower silica content leads to lower viscosity, allowing the magma to flow more easily and potentially forming more gentle eruptions.
Does magma having a silica content of 50 percent is more mafic than one having a silica content of 70 percent?
No, magma with a silica content of 50 percent is more felsic, while magma with a silica content of 70 percent is more mafic. Silica content is inversely proportional to magma's mafic or felsic classification.
What igneous rock or magma has the lowest silica content?
Peridotite, a type of ultramafic rock composed largely of the mineral olivine, has the least silica.Read more: Which_igneous_rock_out_of_granite_basalt_andesite_and_peridotite_has_the_lowest_silica_SiO2_content
What term is used to describe magma that is rich in feldspars and silica?
Felsic magma. This type of magma is viscous with high silica content, resulting in explosive eruptions and the formation of light-colored rocks.
Do intermediate contains the least amount of silica?
No, intermediate magma typically contains a moderate amount of silica compared to other magma types. Basaltic magma has the lowest silica content, while rhyolitic magma has the highest silica content.
What mineral that affects magma thickness?
The mineral that affects magma thickness is silica. Magma with high silica content tends to be more viscous, resulting in thicker magma. Conversely, magma with low silica content is less viscous and flows more easily.
What does high silica content magma form?
When it cools and crystallizes into rock, the rock will be described as felsic igneous rock. Examples of felsic igneous rocks are granite, rhyolite, and pumice.
Suppose a volcano that is about to erupt contains mafic magma. The mafic magma has a very low silica content. what types of igneous rocks will the volcano most likely form?
basalt
How can bowens reaction series determine the silica content in magma?
Higher silica contents will be in the igneous rocks that form with lower temps. Ones that form earlier in the series like olivine have lower percentages of silica.
A light colored igneous rock with silica content and explosive eruptions?
The rock is likely rhyolite, which is a light-colored igneous rock with high silica content. Rhyolitic magma is viscous and tends to trap gas, leading to explosive eruptions with ash and pyroclastic flows. The high silica content of rhyolite contributes to its light color and explosive nature.
