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Because there are so many sources from which these magmas form. Different source rock = different magma composition.
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∙ 12y ago
The diversity of magma types is mainly due to variations in composition and characteristics of the source material in the Earth's mantle. Different minerals and rocks within the mantle melt at different temperatures and pressures, leading to a wide range of magma compositions. Additionally, factors like depth of melting, presence of water, and tectonic settings can all influence the characteristics of magmas.
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What kind of magmas are generated in places where volcanoes erupt both explosively and nonexplosively?
Volcanoes that erupt both explosively and nonexplosively typically generate magmas with a range of compositions. This can include basaltic magmas for nonexplosive eruptions due to their low viscosity, and intermediate to silicic magmas for explosive eruptions due to their high gas content and higher viscosity. The mixture of magma types leads to varying eruption styles within the same volcanic system.
Why are granitic magmas thicker than basaltic magmas?
Granitic magmas are thicker than basaltic magmas because they have higher silica content, which increases viscosity. The higher silica content leads to stronger bonding between the silica tetrahedra, making it more difficult for the magma to flow. Basaltic magmas, on the other hand, have lower silica content and are less viscous, allowing them to flow more easily.
Can magmas be classified as intrusive or extrusive?
Yes, magmas can be classified as intrusive or extrusive. Intrusive magmas form underground as the magma cools slowly, resulting in large crystals. Extrusive magmas, on the other hand, cool quickly on the Earth's surface, leading to fine-grained or glassy textures like obsidian or basalt.
Do volcanoes always extrude magmas of the same type?
No, volcanoes can extrude a variety of magma types, which can vary in composition, temperature, and viscosity. Different types of volcanoes, like stratovolcanoes and shield volcanoes, often produce different types of magma due to variations in geological conditions and processes.
What kind of magmas produce violent volcanic eruptions?
Magmas with high viscosity and gas content tend to produce violent volcanic eruptions. High viscosity magmas are thicker and have more difficulty releasing gas, leading to pressure build-up and explosive eruptions. This often occurs with felsic or rhyolitic magmas.
What are the magmas the three families of igneous rock form from?
There are many different types of ignoues rock, but as a general description, mafic, felsic and intermediate rocks are formd from basaltic, granitic, and andesitic magmas respectively.
After what are magmas named?
Magmas are named according to their percentage of silicate mineral content .
What are rocks from magma?
Well, there are 3 types of rocks. One is derived from magmas, ashes and a mixture of both. These are called Igneous rock (IG-NE-YUS).
Can magmas be classified as intrusive or extrusive?
Yes, magmas can be classified as intrusive or extrusive. Intrusive magmas form underground as the magma cools slowly, resulting in large crystals. Extrusive magmas, on the other hand, cool quickly on the Earth's surface, leading to fine-grained or glassy textures like obsidian or basalt.
Why some types of magma form igneous rocks that are dark colored and dense.?
Mafic and ultramafic magmas are high in dark, heavy minerals like pyroxene, amphibole, and olivine, which contribute to an igneous rock being dark in color with a higher specific gravity than felsic and intermediate magmas and rocks.
Why are some types of magma form igneous rocks that are dark colored dense?
Mafic and ultramafic magmas are high in dark, heavy minerals like pyroxene, amphibole, and olivine, which contribute to an igneous rock being dark in color with a higher specific gravity than felsic and intermediate magmas and rocks.
What rocks are derived from magma?
Well, there are 3 types of rocks. One is derived from magmas, ashes and a mixture of both. These are called Igneous rock (IG-NE-YUS).
How do you get into team magmas hideout?
you have to catch groundon
There are many different types of paragraphs why are so many different types needed?
There are so many different types because they are all used for different purposes in different situations.
How do you get master balls on emerald?
you can get alot!you can get one in magmas base.And you can get one in the lottery if your in first place.The magmas base is in lilycove city,lottery.Good luck!
How are felsic magmas formed?
Heat from the mantle melts part of the lower crust
How hot does magma have to be to explode?
The explosive potential of magma depends more on viscosity gas content than on temperature. Most magmas are at temperature of at least 700 degrees Celcius. Interestingly, the most explosive magmas are the high-silica magmas, which have lower melting temperatures.
