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How does an intruding magma body make room for itself during emplacement?
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What happens during a volcano?
Which type of rock is formed when magma forces itself into surrounding undergound rock?
intrusive igneous
What is the difference between magma and crystal?
Magma is molten rock, the dissolved mineral remains of solid rock. During cooling and solidification, the magma will crystallize into a mass of crystallized mineral components.
How magma moves upward though a volcano and reaches the surface during an eruption?
The inside of the earth (Mantle) pushes the hot magma liquid and makes the magma move toward the surface.
Magma that is rejected during a volcanic eruption forms igneous rocks?
Magma that is ejected during a volcanic eruption forms extrusive igneous rocks. They are also referred to as volcanic rocks.
Is Magma emplacement a sedimentary structure?
no
Which of the following is NOT a sedimentary structure Ripple marks Magma emplacement Mud cracks or Cross beds?
Magma emplacements or Batholith are not sedimentary structures.
What kind of rock is likely to form where the heat from the granitic magma is conducted to the limestone country rock?
The metamorphosed limestone will most likely be a skarn or marble, both formed from contact with an intruding granitic magma.
Are intrusive rocks younger than the rocks they cut across?
A rock unit that cross cuts another rock unit is younger than the rock through which it cuts
Is granite formed from lava cooling or magma cooling?
Not from the magma, no. Cooled and solidified magma is classified as igneous. However, metamorphic rocks can be formed as the heat and hot fluids of intruding magma affect the properties and possibly the chemistry of the existing "country rock" into which it comes in contact. This process is called contact metamorphism.
What are the reasons for moving the tectonic plates?
They are floating on the magma below them and the magma itself is moving.
Does a dike form when magma forces itself between rock layers and hardens?
No, when magma forces itself BETWEEN rock layers it is called a sill. When the magma cuts THROUGH rock layers it is called a dike.
What rocks are found during contact metamorphosis?
Contact metamorphism generally occurs relatively close to the surface in a zone of contact between an intruding magma body and the country rock, which could be a sedimentary, igneous, or previously metamorphosed rock. Hornfels is a common resultant contact metamorphic rock.
What is the slab that forms when magma forces itself across rock layers?
The slab that forms when magma forces itself across rock layers is called a dike.
Which is the molten rock that you can find underground chamber?
The molten material that you find in the magma chamber is the magma itself.
A magma that has reached the earth surface usually cools faster and?
As it moves upward, the magma encounters colder rock and begins to cool. If the temperature of the magma drops low enough, the magma will crystallize underground to form rock; rock that forms in this way is called intrusive, or plutonic igneous rock, as the magma has formed by intruding the surrounding rocks. If the crust through which the magma passes is sufficiently shallow, warm, or fractured, and if the magma is sufficiently hot and fluid, the magma will erupt at the surface of the earth, possibly forming volcanoes. Magma that erupts is called lava. For more information go to: http://encarta.msn.com/encyclopedia_761595520/Magma.html
What is it called when magma forces itself into underground rock?
Intrusion.
