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How does the age of an igneous extrusion compare with the rock into which it was extruded?
Wiki User
∙ 13y ago
An igneous intrusion is younger than the rock into which it intruded.
Wiki User
∙ 13y ago
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What processes must occur to change any rock to igneous rock?
The process that must occur to change any rock to igneous rock is melting.
What are the three rock types?
Igneous, Metamorphic and Sedimentary
What makes a sedimentary or igneous rock form to a metamorphic rock?
heat and pressure is applied to the rock and it becomes a metamorphic rock.
What types of volcanic rock fragments or lava come out of the Colima volcano?
Igneous Rock
What was obsidian before it was obsidian?
It was liquid rock (magma) which solidified after an extrusion or eruption. Crustal rocks can re-dissolve into magma during subduction of oceanic crust.
What is a body of extrusive igneous rock called?
The answer to this ? is extrusion
How does the age of a rock layer compare with an igneous intrusion that is through it or an igneous rock extrusion above it?
If it is above it, the rock layer came after the intrusion. if the intrusion went through the rock layer is older because they layer had to be there in order for the intrusion to go through.
What tells geologists how extrusion forms?
I am learning about this in my Science class, and when a geologist looks at an extrusion, they know it's an extrusion because it is Igneous rock, and an extrusion helps tell the reletive ages of the layers around it.
What is a igneous extrusion?
Lava that hardens on the surface, and are younger than the rock layers below.
Is lava an intrusive igneous rock?
Lava is the name given to any still molten rock that is extruded onto the Earth's surface. When it cools it becomes an extrusive igneous rock such as basalt.
Is melted rock that reaches Earth's surface and forms extrusive igneous rock when it cools?
Yes, once-molten rock that cooled on the surface had been extruded from the earth. That is why it is classified as extrusive igneous rock.
Is melted rock that reaches Earth surface and forms extrusive igneous rock when it cools?
Yes, once-molten rock that cooled on the surface had been extruded from the earth. That is why it is classified as extrusive igneous rock.
Does a igneous rock forms from lava?
Yes, an igneous rock forms when lava is cooled. It is called an extrusive igneous rock (because lava is extruded onto the surface of the earth). A magma pool that did not erupt as lava can cool to become an intrusive rock.
How extrusion forms?
An extrusion is an igneous rock layer formed when lava flows onto Earth's surface and hardens. Extrusions are always younger than the rocks below it.
What clues tells geologists how extrusions are formed?
I am learning about this in my Science class, and when a geologist looks at an extrusion, they know it's an extrusion because it is Igneous rock, and an extrusion helps tell the reletive ages of the layers around it.
What clues tell geologist how extrusions form?
I am learning about this in my Science class, and when a geologist looks at an extrusion, they know it's an extrusion because it is Igneous rock, and an extrusion helps tell the reletive ages of the layers around it.
What is the difference between igneous rocks and extrusive rocks?
Extrusive is a form of igneous rock - it's what you get when the magma is extruded or squeezed out onto the surface in the form of lava.
