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Extrusive rocks cool rapidly, typically within hours to days, as they are formed from lava that erupts onto the Earth's surface. This rapid cooling occurs due to exposure to the atmosphere or water, resulting in fine-grained textures. The quick solidification prevents the formation of large crystals, leading to the characteristic glassy or aphanitic textures of many extrusive rocks.
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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.
Is Obsidian an extrusive rock or intrusive rock?
Yes it is extrusive love yall
What happens if an extrusive igneous rock goes in the ocean and wind acts on it?
The extrusive igneous rock will float because that extrusive rock got cooled down fast then a regular extrusive. When the wind acted on it, it get cool down fast and the gases from the volcano gets trap in the rock and the weight of that rock is light. Also water and gases have different density so the gases in the rock will be pushed upward and the rock will float because of the weight and the gases in the rock. (P.s only a prediction)
Why would you except the crystals in a intrusive rock to be larger than the crystals in a extrusive rock?
Minerals formed in intrusive rock cool more slowly than extrusive rock, which is closer to the surface. The longer cooling period allows more time for crystal formation.
Why would you expect the crystals in an intrusive rock to be larger than the crystals in the extrusive rock?
Because as an intrusive rock cools underground, it will normally cool more slowly than an extrusive (surface) rock. The slow cooling allows more time for the crystals to grow.
What are types of extrusive rock?
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.
Do extrusive rocks cool quickly?
Extrusive rocks do cool quickly because either the crystals in the rock are very small or there are no crystals at all.
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.
Why do extrusive rocks cool quickly?
because the crystal in the rock is very small
What is the different between extrusive and intrusive rocks?
Intrusive: An intrusive igneous rock is formed from magma undergroundExtrusive: An extrusive igneous rock is formed from lava outside of the volcano.
What rocks cool from magma or lava?
magma cools into intrusive igneous rock while lava into extrusive igneous rock
Is Obsidian an extrusive rock or intrusive rock?
Yes it is extrusive love yall
What happens if an extrusive igneous rock goes in the ocean and wind acts on it?
The extrusive igneous rock will float because that extrusive rock got cooled down fast then a regular extrusive. When the wind acted on it, it get cool down fast and the gases from the volcano gets trap in the rock and the weight of that rock is light. Also water and gases have different density so the gases in the rock will be pushed upward and the rock will float because of the weight and the gases in the rock. (P.s only a prediction)
Does an Extrusive Rock cool slowly?
No, extrusive rocks cool quickly because they form on the Earth's surface or in shallow depths where the temperature is lower. This rapid cooling results in small mineral crystals or a glassy texture in the rock.
What are types of extrusive igneous rocks?
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.
Is pumice an extrusive rock?
Extrusive
Why would you except the crystals in a intrusive rock to be larger than the crystals in a extrusive rock?
Minerals formed in intrusive rock cool more slowly than extrusive rock, which is closer to the surface. The longer cooling period allows more time for crystal formation.
