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Which is true about how all detrital rocks form?
Detrital rocks form from the accumulation and cementation of sediment grains derived from the weathering and erosion of pre-existing rocks. The size, shape, and composition of the sediment grains help to identify the environment in which the detrital rock formed. Detrital rocks include sandstone, shale, and conglomerate.
Igneous rocks that result when lava solidifies are classified as what?
Igneous rocks that result from lava solidifying above ground are classified as extrusive igneous rocks. These rocks cool quickly, leading to small mineral grains and a fine-grained texture. Examples include basalt and rhyolite.
What is the major difference between intrusive rocks and extrusive igneous rocks?
The major difference is their formation location: intrusive rocks are formed below the Earth's surface from the slow cooling of magma, resulting in coarse-grained textures, while extrusive rocks are formed on the Earth's surface from rapid cooling of lava, resulting in fine-grained textures. Intrusive rocks have larger mineral grains due to their slower cooling process, whereas extrusive rocks have smaller mineral grains due to their faster cooling process.
What rock has large mineral grains?
Fine grains of rocks are referred to as "clasts." The word "clast" comes from the Greek word "klastos," meaning "broken."
Is rhis sentence true or false lava cools quicklyand forms minerals with small crystals?
It is true that lava cools quickly and forms minerals with small crystals.
Do large grain rocks form from lava or magma?
Large grain rocks, such as granite, form from magma as it cools slowly beneath the Earth's surface. This slow cooling allows for the growth of large mineral grains within the rock. Rocks formed from lava, such as basalt, typically have much smaller grain sizes due to the rapid cooling at the Earth's surface.
What is a large group of rocks which form magma or lava?
Igneous rocks.
Does granitic lava explode?
No Granites are usually intrusive rocks.
Which is true about how all detrital rocks form?
Detrital rocks form from the accumulation and cementation of sediment grains derived from the weathering and erosion of pre-existing rocks. The size, shape, and composition of the sediment grains help to identify the environment in which the detrital rock formed. Detrital rocks include sandstone, shale, and conglomerate.
Large group of rocks formed from magma or lava?
Igneous rock.
Igneous rocks that result when lava solidifies are classified as what?
Igneous rocks that result from lava solidifying above ground are classified as extrusive igneous rocks. These rocks cool quickly, leading to small mineral grains and a fine-grained texture. Examples include basalt and rhyolite.
What large group of rocks which form from magma of lava?
another name for the mineral crystals in cooling magma or lava
Are all black rocks lava lava rocks?
no, there are more rocks
What type of rocks come out of a lava dome volcano?
Usually rhyolite or dacite.
How do rocks from lava form?
When a volcano erupts the lava usually reaches water and when they collide it turns into obsidian (I know because of minecraft).
Is it true that most lava crystallizes to form igneous rocks with phaneritic textures?
No, not all lava crystallizes to form igneous rocks with phaneritic textures. Phaneritic textures are characterized by large, visible crystals, which form when magma cools slowly beneath the Earth's surface. Lava that cools quickly on the Earth's surface forms igneous rocks with aphanitic textures, characterized by fine-grained or glassy structures.
What are fine grains?
They are rocks formed from lava at or near the surface. Basalt is a typical fine-grained extrusive igneous rock, composed of mineral crystals that require magnification to see. The fine-grained texture is due to rapid solidification of the lava which leaves little time for large mineral crystal formation.
