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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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4mo ago

Intrusive igneous rocks form underground from magma that cools slowly, resulting in coarse-grained textures. They have large mineral crystals visible to the naked eye, such as feldspar, quartz, and mica. Examples include granite, diorite, and gabbro.

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Q: What are the features of intrusive igneouse rocks?
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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.


Is igneouse rocks in the ground or above?

Igneous rocks can be found both in the ground and above ground. Igneous rocks form from the cooling and solidification of magma or lava, which can happen below the Earth's surface (intrusive igneous rocks) or on the surface (extrusive igneous rocks).


What does intrusive rocks have?

a lot


How does extrusive differ from intrusive?

Extrusive rocks form from lava cooling on the Earth's surface, leading to rapid cooling and fine-grained texture. Intrusive rocks form from magma cooling beneath the surface, resulting in slower cooling and coarse-grained texture. This difference in cooling rates gives extrusive rocks their characteristic fine-grained appearance and intrusive rocks their coarse-grained appearance.


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.


How are intrusive features classified?

Intrusive features can be classified based on various characteristics such as their composition (rock, mineral, or fossil), size (small or large), shape (roundish or angular), and mode of formation (volcanic, tectonic, or sedimentary). These features may also be categorized according to their relationship with the surrounding rock or terrain, such as whether they cut across existing structures or postdate certain events.


What is an intrusive rock is?

Sedimentary rocks are not intrusive. Igneous rocks are though. See the link below.


What term describes igneous rocks that crystallize inside the Earth?

Intrusive igneous rocks.


Do all intrusive igneous rocks have crystals?

Yes. All intrusive igneours rocks and many extrusive rocks have crystals.


What are the main two types of igneous rocks?

Igneous rocks are classified as either extrusive or intrusive. Extrusive rocks form from lava at or above the ground, and intrusive rocks form from magma below the ground. Granite is intrusive, pumice is extrusive.


Can rocks both have igneous and intrusive?

Rocks can be classified as either igneous or intrusive, but not both. Igneous rocks are formed from the cooling and solidification of magma (molten rock) above or below the Earth's surface. Intrusive rocks specifically form from magma that cools and solidifies underground, beneath the Earth's surface.