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Why are crystals in basalt that formed under water smaller than those in basalt that formed on ground?
Crystals in basalt that formed underwater are smaller because they cool faster in the water, resulting in less time for the crystals to grow. On the other hand, crystals in basalt that formed on the ground have more time to grow as they cool more slowly, leading to larger crystal sizes.
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Where is basalt and gabbro formed?
Basalt is formed from volcanic lava flows that cool quickly on the Earth's surface, while gabbro is formed from the slow cooling of magma deep underground. Both rocks contain similar mineral compositions, with basalt having fine-grained crystals and gabbro having coarse-grained crystals.
What type of rock is formed when magma undergoes crystallization above ground?
Igneous rocks like rhyolite or andesite are formed when magma undergoes crystallization above ground. These rocks cool relatively quickly, resulting in smaller mineral crystals compared to rocks formed from magma crystallizing deep underground.
How can you tell the difference between an igneous rock that formed above ground and one that formed below?
Igneous rocks that form below ground (intrusive) have larger crystals due to slower cooling, whereas igneous rocks that form above ground (extrusive) have smaller crystals or a glassy texture due to rapid cooling. Additionally, intrusive rocks may show visible layering or bands, while extrusive rocks typically have a more uniform appearance.
Where is basalt formed?
Basalt is an extrusive volcanic rock formed from the decompression melting of Earth’s mantle. It is expelled through volcanic eruption and it produced grey to black and fine grained rock. It may contain minerals and elements. Basalt is also formed in other planets and asteroids.Look here for more information:http://geology.com/rocks/basalt.shtml
Which type of rock is formed above the ground by lava?
The general type is extrusive igneous rock.
Why are the crystals in pillow basalt smaller than the crystals in basalt that forms in the ground?
Pillow basalt is formed from solidifying lava which erupts under the surface of a body of water. Because of this, it cools much faster, allowing less time for crystal growth.
Where is basalt and gabbro formed?
Basalt is formed from volcanic lava flows that cool quickly on the Earth's surface, while gabbro is formed from the slow cooling of magma deep underground. Both rocks contain similar mineral compositions, with basalt having fine-grained crystals and gabbro having coarse-grained crystals.
In what way will crystals be different from the crystals formed when lava solidifies above ground?
Crystals formed from lava that solidifies above ground are typically smaller due to the faster cooling process, resulting in fine-grained rocks like basalt. Crystals formed underground from slower cooling have more time to grow and can develop larger sizes, leading to coarse-grained rocks like granite. The cooling rate affects crystal size and the overall texture of the rock.
What are two types of igneous rock?
Two types of igneous rock are intrusive (also called plutonic) and extrusive. There is also porphyry rock which is partly intrusive and partly extrusive. Porphyry rock has large crystals embedded in a mass of much smaller crystals. The large crystals formed underground as does intrusive rock, and were carried in lava when it erupted. The mass of smaller crystals formed around the large crystals when the lava cooled quickly above ground, as does extrusive rock.
Why are the basalt that were born in water are smaller than the ones on ground?
I am not sure what you mean by "smaller" BUT - Most piles of basalt on the planet (eg hawaii) are in water - Indeed the whole oceanic seafloor is basalt, so there is more basalt in water than ALL the basalt to be found on land.
What type of rock is formed when magma undergoes crystallization above ground?
Igneous rocks like rhyolite or andesite are formed when magma undergoes crystallization above ground. These rocks cool relatively quickly, resulting in smaller mineral crystals compared to rocks formed from magma crystallizing deep underground.
Is basalt underground?
Basalt is a common type of volcanic rock that can be found both underground and at the surface. It forms from the rapid cooling of lava flows and can be part of the Earth's crust in various locations.
How can you tell the difference between an igneous rock that formed above ground and one that formed below?
Igneous rocks that form below ground (intrusive) have larger crystals due to slower cooling, whereas igneous rocks that form above ground (extrusive) have smaller crystals or a glassy texture due to rapid cooling. Additionally, intrusive rocks may show visible layering or bands, while extrusive rocks typically have a more uniform appearance.
What are the characteristics of igneous rocks formed underground?
Usually they have larger crystals and coarser grain than those formed above ground.
Do rocks with small crytals form underground or above ground?
Rocks with small crystals form above ground, because when formed under ground the magma makes the rock cool slower causing more time for the crystals to grow. Above ground the rock cools faster, because the air isn't as hot under ground than above ground.
Where is basalt formed?
Basalt is an extrusive volcanic rock formed from the decompression melting of Earth’s mantle. It is expelled through volcanic eruption and it produced grey to black and fine grained rock. It may contain minerals and elements. Basalt is also formed in other planets and asteroids.Look here for more information:http://geology.com/rocks/basalt.shtml
Which type of rock is formed above the ground by lava?
The general type is extrusive igneous rock.
