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Does Rhyolitic magma forms beneath continental or oceanic crust?
Rhyolitic magma typically forms beneath continental crust due to high silica content and low temperature. The silica-rich composition leads to viscous magma, which is more common in continental settings compared to oceanic crust where magma tends to be more basaltic and less viscous.
What is the dominant rock type in the ocean crust and in the continental crust?
The dominant rock type in ocean crust is basalt, which forms from solidified lava. In continental crust, the dominant rock type is granite, which forms from the cooling and solidification of magma beneath the Earth's surface.
New oceanic lithosphere forms as a result of?
New oceanic lithosphere forms as a result of seafloor spreading at mid-ocean ridges. Magma rises from the mantle, solidifies at the mid-ocean ridge, and creates new oceanic crust. This process leads to the continuous expansion of the ocean floor.
Why there are volcanoes mountain ranges and earthquake in the crust?
Volcanoes and earthquakes are both the result of what is known as plate tectonics; the Earth's crust is composed of a number of large pieces known as plates, which float on the underlying magma of the mantle, and which slowly drift, and collide with each other. Volcanoes are also related to currents in the magma which can break through the crust even aside from the phenomenon of continental drift.
Why does one continental plate slide under the other?
Because magma rises through hot spots( holes in the ground on the ocean floor) and cools forming new crust which repeats over hundreds of years making the oceanic crust more dense than continental crust. Since the oceanic crust is more dense, it sinks faster causing it to slide under the continental crust
Match the feature or term in column 1 to the the characteristics in column 2?
Volcano develops from one place lives under another continental drift moving plates subduction zone were oceanic crust collides with the continental crust magma made from melting plates I voice typed
What fills the gap when the plates split?
Magma from the mantle rises to fill the gap created when tectonic plates split. As the magma cools and solidifies, new crust is formed, contributing to the process of seafloor spreading or continental drift.
When 2 continental plates diverge a forms.?
When two continental plates diverge, a rift valley forms due to the pulling apart of the Earth's crust. Magma rises to fill the gap created by the separating plates, eventually leading to the formation of new oceanic crust. Over time, this process can result in the formation of a new ocean basin.
What type of magma does mount shasta have?
Mount Shasta typically has andesitic magma, which is a type of intermediate magma that is common in subduction zone environments. This type of magma is rich in silica and forms from the partial melting of both oceanic and continental crust.
Which of these forms as crust drops along a divergent boundary across a continental plate?
A mid-ocean ridge forms as crust drops along a divergent boundary across a continental plate. This process occurs when two tectonic plates move away from each other, allowing magma to rise up and solidify, creating new oceanic crust.
What caused continental drift?
volcanos, mountains
Oceanic crust is lighter than the continental crust?
No, the oceanic crust is denser. That's why the land areas "float" so much higher than the ocean bedrock.
