Which of these conditions will cause a rock to melt?
The three factors that affect whether rock melts include temperature, pressure, and the presence of fluids in the rock. Rock melts when the temperature of the rock increases to above the melting point of minerals in the rock. Rock melts when excess pressure is removed from rock that is close to melting.
What are the 3 ways that magma is generated?
There are three principal ways rock behavior crosses to the right of the green solidus line to create molten magma: 1) decompression melting caused by lowering the pressure, 2) flux melting caused by adding volatiles (see more below), and 3) heat-induced melting caused by increasing the temperature.
What are three ways you can melt a rock to make magma quizlet?
Terms in this set (21)
- heat it, hot magma near solid rocks can melt nearby rocks to make more magma. rising magma carries mantle heat, this raises the T in nearby crustal rock–> melts.
- decreasing pressure by bringing it closer to surface.
- add water or other gases, water helps melt rock like salt on icy road.
What are 3 ways that magma can form?
The three ways that magma can be formed are through heat transfer, decompression melting and flux melting. The process of magma creation is referred to by geologists as magmagenesis and occurs at the upper mantle of the Earth’s crust due to plate tectonic effects.
Why does magma rise up through the crust?
The high temperatures (900°C) and extremely high pressures that occur in the mantle layer of the Earth are enough to melt rock. The high pressure changes the rock into a viscous semisolid called magma. This semisolid magma continues to move upwards through the crust, experiences less pressure and so becomes more fluid.
What causes magma to rise?
Magma can rise when pieces of Earth’s crust called tectonic plates slowly move away from each other. Magma also rises when these tectonic plates move toward each other. When this happens, part of Earth’s crust can be forced deep into its interior. The high heat and pressure cause the crust to melt and rise as magma.
What volcano would have the biggest eruption?
Tambora
What is the most destructive volcanic eruption recorded in the Philippines?
Pinatubo eruption
How strong was the eruption of Mount Pinatubo?
On July 16, 1990, a magnitude 7.8 earthquake (comparable in size to the great 1906 San Francisco, California, earthquake) struck about 60 miles (100 kilometers) northeast of Mount Pinatubo on the island of Luzon in the Philippines, shaking and squeezing the Earth’s crust beneath the volcano.