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Extrusive rock forms from cooling lava.
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Is volcanic glass an intrusive or extrusive igneous rock?
Volcanic material is extrusive.
If granite within earth melts and then erupts at the surface what type of extrusive rock is likely to form?
A felsic extrusive igneous rock, such as rhyolite or obsidian.
What is a igneous rock formed from magma?
basalt
A lava flow is an example of an igneous rock one of the two main igneous rock groups?
It is an example of extrusive igneous rock.
What type of rock is likely to form next when extrusive igneous rock is broken down by weathering?
Sedimentary
What material does extrusive rock form?
Extrusive rock forms from cooling lava.
From what material does extrusive rocks form?
Extrusive rock forms from cooling lava.
Is volcanic glass an intrusive or extrusive igneous rock?
Volcanic material is extrusive.
How does an Igneous rock turn into Magma?
No. If it cools as magma it will form an intrusive igneous rock. To form an extrusive igenous rock it must erupt from a volcano, where it becomes lava or pyroclastic material.
Is glassy igneous rocks intrusive or extrusive?
Granite gneiss is a metamorphic rock and would not be considered extrusive (rock formed from molten material at or near the surface).
How do you think magma turns into extrusive igneous rocks?
When melted rock material cool's on earth's surface, it makes Extrusive Igneous Rock.
How does the Igneous rock form from the extrusive?
Extrusive volcanics form when magma travels and cools upon reaching Earth's surface.
Lava cools to form?
Extrusive igneous rock.
When melted rock erupts from a volcano and hardens what kind of rock does it form?
Extrusive igneous rock.
If granite within earth melts and then erupts at the surface what type of extrusive rock is likely to form?
A felsic extrusive igneous rock, such as rhyolite or obsidian.
If granite within the earth melts then erupts at the surface what type of extrusive rock is likely form?
A felsic extrusive igneous rock, such as rhyolite or obsidian.
What is a igneous rock formed from magma?
basalt
