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Dude, i know what your playing at. I have the exact same book you have/had. seriously. Why are you doing this for every single question? Do you really think it's gonna help you in the long run? Just think about it.
could just answer it
+ your doing the exact same thing or else you wouldn't be able to comment
think about it
What else can I help you with?
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.
Does Light-colored rocks with lower densities form from basaltic magma?
Basaltic Magmas are dark colored, heavy and are ferromagnesian in composition, so they most times do not form light colored rocks, rather, the Felsic Granitic Magma forms the light colored rocks with lower densities.
What type of eruptions do mafic magmas cause?
Basaltic magmas are associated with fissure eruptions creating lava flows spilling out from cracks in the crust. This is because basaltic magmas are more viscous and contain a lower concentration of gases than rhyolitic magma and therefore are unable to build up sufficient pressure to produce explosive eruptions.
What are the tectonic settings associated with the formation of basaltic composition magmas?
Basaltic composition magmas are commonly associated with divergent plate boundaries where seafloor spreading occurs, such as mid-ocean ridges. They can also form in hot spots, such as Hawaii, where mantle plumes rise through the crust. Additionally, basaltic magmas can be generated at convergent plate boundaries where oceanic crust subducts beneath continental crust.
What kinds of magmas forms at divergent boundaries?
Usually a dense basaltic magma with low water content.
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.
What do basaltic and granitic magmas have in common?
Basalt and Granite are both made from the same magma.
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.
Is basaltic magma wet or dry?
Basaltic magma is considered "dry" because it has relatively low water content compared to other types of magma. This is why basaltic eruptions tend to be less explosive compared to more water-rich magmas like andesitic or rhyolitic magmas.
Does Light-colored rocks with lower densities form from basaltic magma?
Basaltic Magmas are dark colored, heavy and are ferromagnesian in composition, so they most times do not form light colored rocks, rather, the Felsic Granitic Magma forms the light colored rocks with lower densities.
Will rhyolitic magmas erupt at lower temperatures than basaltic magmas?
Yes, rhyolitic magmas are several hundred °C colder than basaltic magmas. This is because the melting point of a rhyolitic magma is much lower than that of basaltic magma. Instead of heating up rhyolitic magma much above its melting point it will ascend and either crystallize in the Earth's interior as a pluton or erupt.
What type of eruptions do mafic magmas cause?
Basaltic magmas are associated with fissure eruptions creating lava flows spilling out from cracks in the crust. This is because basaltic magmas are more viscous and contain a lower concentration of gases than rhyolitic magma and therefore are unable to build up sufficient pressure to produce explosive eruptions.
What are the tectonic settings associated with the formation of basaltic composition magmas?
Basaltic composition magmas are commonly associated with divergent plate boundaries where seafloor spreading occurs, such as mid-ocean ridges. They can also form in hot spots, such as Hawaii, where mantle plumes rise through the crust. Additionally, basaltic magmas can be generated at convergent plate boundaries where oceanic crust subducts beneath continental crust.
Most basaltic magmas are believed to form by partial melting of granite in the lower crust and upper mantle?
Basaltic magmas are typically formed by partial melting of the upper mantle, specifically the mantle wedge above subduction zones. This process occurs at high temperatures and low pressures, resulting in the generation of magma rich in iron and magnesium. The melting of granite in the lower crust is less common but can also give rise to basaltic magmas through processes such as assimilation and fractional crystallization.
What kinds of magmas forms at divergent boundaries?
Usually a dense basaltic magma with low water content.
What is a geological rift?
Rifts are areas in the Earth's lithosphere where plates are moving apart and being infilled with basaltic magmas from the asthenosphere.
This type of magma has low silica content?
Mafic magma has low silica content. It is usually rich in magnesium and iron, leading to its high density and fluid-like behavior. Mafic magmas tend to form basaltic rocks when they solidify.
