An igneous intrusion is younger than the rock into which it intruded.
The process that must occur to change any rock to igneous rock is melting.
Igneous, Metamorphic and Sedimentary
heat and pressure is applied to the rock and it becomes a metamorphic rock.
Igneous Rock
It was liquid rock (magma) which solidified after an extrusion or eruption. Crustal rocks can re-dissolve into magma during subduction of oceanic crust.
The answer to this ? is extrusion
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.
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.
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.
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.
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.
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.
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.
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.
As lava cools, it hardens and forms a thick layer of rock. These rocks are known as igneous rocks. An example of an igneous rock is pumice, which is used in spa treatments to soften feet.
An igneous extrusion is a type of volcanic rock that forms when lava flows onto the Earth's surface and solidifies quickly. These rocks are fine-grained due to the rapid cooling process and can be found in various volcanic formations such as lava flows and volcanic domes.
Basalt is extruded from volcanoes and MOR (mid ocean ridges). It actually forms in the earth's mantle and just solidifies on the earth's surface.