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intrusive rocks have a finer texture and extrusive such as lava rock are more course. intrusive rocks are cooled within the earth and extrusive cooled outside the earth.
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∙ 12y ago
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When Relative cooling rates of igneous intrusive rocks can be estimate by comparing what features of the rocks?
Im assuming density.
Are felsic rocks usually intrusive or extrusive?
Most felsic rocks, though not all, are intrusive.
Igneous rocks are described as intrusive or extrusive based on?
Igneous rocks are described as intrusive or extrusive based on formation. Intrusive rocks forms underneath the earth surface, while extrusive rocks forms on the surface of earth.
Do intrusive rocks have large crystals because they cool quickly?
No. Intrusive igneous rocks have large crystals because they cool slowly.
Would you list intrusive rocks under rocks that form above the ground or below?
Intrusive rocks are Igneous rocks that have been formed underground. Igneous rocks are formed by the cooling of lava/magma. Igneous rocks are divided into two categories- intrusive and extrusive. Intrusive is when the magma cools slowly beneath the Earth's surface, which causes large crystals to form. When lava cools above the Earth's surface, it is called extrusive. Extrusive rocks have smaller crystals compared to intrusive, the difference always being noticable.
How are intrusive features classified?
Intrusive features are typically classified as plutonic rocks, especially inside of a volcano. Comparatively, extrusive features are also classified as volcanic rocks.
How are intrusive classified?
Intrusive features are typically classified as plutonic rocks, especially inside of a volcano. Comparatively, extrusive features are also classified as volcanic rocks.
When Relative cooling rates of igneous intrusive rocks can be estimate by comparing what features of the rocks?
Im assuming density.
How does extrusive differ from intrusive?
Intrusive features are found on the inside of the volcano e.g.magma chamber, and extrusive features are found on the outside e.g. crater.
Are intrusive rocks vesicular?
Intrusive rocks are not normally vesicular.
Can rocks both have igneous and intrusive?
Since igneous rocks are divided into two categories (intrusive and extrusive) an igneous rocks can be intrusive.
Are intrusive igneous rocks heavy or light?
Intrusive rocks are light.
Are intrusive rocks volcanic?
No. Volcanic rocks are extrusive. Intrusive rocks are sometimes called plutonic.
Igneous rocks form below earths surface?
Intrusive
What is an intrusive rock is?
Sedimentary rocks are not intrusive. Igneous rocks are though. See the link below.
Are felsic rocks usually intrusive or extrusive?
Most felsic rocks, though not all, are intrusive.
Do all intrusive igneous rocks have crystals?
Yes. All intrusive igneours rocks and many extrusive rocks have crystals.
