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When does magma become lava?
It should be magma is the hottest because it is usually molten rock that has not reached the surface during an eruption.Lava is 2nd hottest. It is the molten rock we see when a crack in the crust of the earth or a volcano eruption allows molten rock from beneath the crust to come up.
What is the name of this melted substance from the earth?
Lava is molten rock escaping through holes and cracks (eg volcanos) in the Earth's crust. The molten rock when under the Earth's crust is called magma.
What allows earth's crust to move?
The active earth's core continually recycles itself through subduction zones located around certain parts of the planet. The subduction zones are where one tectonic plate is being forced under another, thereby recycling the old crust. New crust is made at rift zones where magma is forced to the surface, cools and then becomes part of our visible (or underwater) earth surface.
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.
Are volcanic eruptions caused by the movements of tectonic plates?
Usually, volcanic eruptions above water are the result of a magma-plume burning through a spot in the Earth's crust, or by the rising part of a magma convection cell. Such conditions are often found near the edges of the continental plates. There are also spots where the Earth's crust is so thin that magma breaks through even without there being a plume, such as near oceanic ridges. Most of the volcanic eruptions on this planet take place under water, near oceanic ridges.
What feature allows magma to move though the crust?
is it faults??
What created divergent boundary?
creates new crust and allows magma to come through.
The movement of magma through the Earth's crust is known as?
The movement of magma through the Earth's crust is known as intrusion.
The opening in Earth's crust through which magma rises to the surface is known as the?
The opening in the earth crust which magma rise to the surface are Volcanoes
What is an area where magma melts through the crust in the middle of a plate?
A hot spot is an area where magma from deep within the mantle rises through the crust in the middle of a tectonic plate, creating volcanic activity and forming a chain of volcanic islands or seamounts. The Hawaiian Islands are a well-known example of hot spot activity.
What is the opening in the earth's crust that allows magma to reach the surface?
An opening in the Earth's crust that allows magma to reach the surface is called a volcano. Volcanoes can be found along tectonic plate boundaries where the Earth's crust is weak, allowing magma from the mantle to rise and erupt onto the surface.
Is a caldera a weak spot in the crust where magma comes through?
A caldera is a large volcanic crater typically formed by the collapse of land following a volcanic eruption. It is not necessarily a weak spot in the crust where magma comes through, but rather a feature that results from the massive release of pressure during an eruption. Magma may still come through the caldera, but it is not the primary defining characteristic of this geological feature.
Why does magma rise through the crust above it?
Magma rises through the crust due to differences in density between the magma and surrounding rock. Magma is less dense than the solid surrounding rock, so it moves upwards through cracks and fractures in the crust. As it rises, magma can also be driven by pressure differences and heat from the Earth's mantle.
Why does magma in the mantle rise through the crust above it?
magma comes from the outer core and when an earthquake or something happends, a crack froms and the pressure of lava shoots up like a geyser.
Magma that breack through the earths curst is called?
Once magma breaks through the earths crust it is called"lava"
What is an opening in Earth's crust through which magma flows?
lava
What is opening in Earth's crust through which magma flows?
lava
