it came from the depths of the earth. due to extreme heat, rocks dissolve and they turn into magma.
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Magma is formed when pre-existing rock melts. This happens either by convection of the rock up through the mantle or by melting rock at a subduction zone. This may be a bit clearer. Magma is molten rock that is found beneath the surface of the Earth, and may also exist on other planets. Melting of solid rock to form magma is controlled by three physical parameters: temperature, pressure, and composition. You can find more information here:http://en.wikipedia.org/wiki/Magma#Melti...
magma can be generated from solid rock by three things:1. decress in PRESSURE2. increase in TEMPATURE3. addition of VOLATILES
Yes, magma can be found in the asthenosphere. The asthenosphere is a partially molten layer beneath the lithosphere where magma can be generated due to the high temperatures and pressures. This molten material can rise to the surface through volcanic activity.
It is called contact metamorphism.
Mafic magma is generated at divergent boundaries because of decompression melting caused by the upwelling of hot mantle material due to the pulling apart of tectonic plates. As the plates move away from each other, the decrease in pressure enables the mantle material to melt and form mafic magma.
Before magma can rise to the surface, it must first be generated through melting of the Earth's mantle or crust. This melting can be caused by an increase in temperature, a decrease in pressure, or the addition of volatiles. Once magma is generated, it can rise towards the surface through fractures and conduits in the Earth's crust.
Magma is generated along subduction zones when oceanic plates are forced beneath continental plates. The intense heat and pressure cause the oceanic plate to melt, creating magma that rises to the surface and forms volcanoes.
A process that alters rocks as a result of heat generated from magma
magma can be generated from solid rock by three things:1. decress in PRESSURE2. increase in TEMPATURE3. addition of VOLATILES
It is called contact metamorphism.
Yes, magma can be found in the asthenosphere. The asthenosphere is a partially molten layer beneath the lithosphere where magma can be generated due to the high temperatures and pressures. This molten material can rise to the surface through volcanic activity.
The earthquakes are generated by magma forcing its way though and fracturing rock.
It is called contact metamorphism.
Mafic magma is generated at divergent boundaries because of decompression melting caused by the upwelling of hot mantle material due to the pulling apart of tectonic plates. As the plates move away from each other, the decrease in pressure enables the mantle material to melt and form mafic magma.
Before magma can rise to the surface, it must first be generated through melting of the Earth's mantle or crust. This melting can be caused by an increase in temperature, a decrease in pressure, or the addition of volatiles. Once magma is generated, it can rise towards the surface through fractures and conduits in the Earth's crust.
Magma is generated deep within the Earth's mantle through the melting of rocks due to high temperatures and pressure. This molten rock then rises towards the Earth's surface, where it can erupt as lava through volcanic activity.
A. Pangaea: Supercontinent B. Panthalassa: Super ocean C. Himalayas: Caused by continents colliding D. Magma: Generated in subduction zones
No, tsunamis are not caused by magma. Tsunamis are typically generated by underwater earthquakes, volcanic eruptions, or landslides that displace large amounts of water. Magma, which is molten rock beneath the Earth's surface, can trigger volcanic eruptions that may lead to tsunamis.