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Extrusive igneous rocks are igneous rocks that form above earth's surface. They are usually fine-grained due to the rate in which they cool.
What else can I help you with?
What are the types of Igneous rock?
extrusive and intrusive
What types of rock does lava formed?
When lava cools it forms extrusive igneous rock.
Identify four extrusive igneous rock structure?
Extrusive igneous rock structures: Lava flow or plateau, Volcano (many types), Crater, Caldera, Fissure.
Is schist an intrusive or extrusive rock?
Neither, Igneous rock is either intrusive or extrusive. Thats what intrusive and extrusive is... A igneous rock.
Is Obsidian an extrusive rock or intrusive rock?
Yes it is extrusive love yall
What does extrusive rock means?
Extrusive igneous rock is one of two different types of igneous rocks. The other kind is intrusive igneous rock. Intrusive igneous rock is formed when magma in Earth's lithosphere cools and hardens. Extrusive igneous rock is formed when lava on Earth's surface cools and hardens.
Is pumice an extrusive rock?
Extrusive
Are basalt extrusive or intrusive?
Basaltic rock are true to be extrusive rock
What are types of volcanic rock?
Volcanic rocks are extrusive igneous rocks.
What material does extrusive rock form?
Extrusive rock forms from cooling lava.
What are two types igneous rocks?
Granite and basalt are the most common types of igneous rock. Igneous rock types, or classifications, also include those that are intrusive and extrusive. Intrusive igneous rock is formed from the solidification of slow cooling magma below the surface. Extrusive igneous rock is formed for the solidification of rapidly cooling lava at or near the surface.
What is the most extrusive igneous rock?
Basalt is the most common extrusive igneous rock.
