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What type of rock is formed when lava flowing from a volcano cools and hardens?
Igneous rock, specifically extrusive or volcanic rock, is formed when lava cools and hardens. This type of rock typically has small crystals due to the rapid cooling process and examples include basalt and rhyolite.
What 2 igneous are formed by fast cooling lava?
Two igneous rocks formed by fast cooling lava are basalt, which is a fine-grained volcanic rock, and obsidian, which is a natural glass formed from rapidly cooling lava without crystal growth.
How would a rock that formed from lava cooling on the Earth's surface compare with a rock that formed from magma cooling deep in the Earth's crust?
A rock formed from lava cooling on the Earth's surface would have smaller mineral grains due to rapid cooling, making it fine-grained (such as basalt). In contrast, a rock formed from magma cooling deep in the Earth's crust would have larger mineral grains due to slower cooling, resulting in a coarse-grained texture (such as granite).
Is lava a sedimentary rock?
No, lava is not a sedimentary rock. Lava is molten rock that erupts onto Earth's surface from a volcano, and when it cools and solidifies, it forms an igneous rock called basalt or rhyolite. Sedimentary rocks are formed through the accumulation and consolidation of sediments, not from volcanic activity.
What does sedimentary rock and igneous rock have in common?
Both are: composed of minerals, subject to weathering and erosion, can be visible on the surface, are derived from natural processes, and are solid. Some sedimentary rocks can be composed almost completely of sediments derived from igneous rock.
Is sedimentary rock formed by lava?
no that is igneus
Is obsidian rock metamorphic rock sedimentary or igneous?
Obsidian is an extrusive igneous rock, formed from rapidly cooling lava.
Is sandstone an igneous rock?
No. Sandstone is a sedimentary rock, composed of cemented grains of sand-sized sediment particles. Igneous rock is formed from the cooling of magma or lava.
How is a rock from cooling lava classified?
A rock formed from cooling lava is classified as an igneous rock. Igneous rocks are formed from the cooling and solidification of magma/lava. They can be further classified based on their mineral composition, texture, and formation process.
Is sedimentary rock formed from cooling magma?
No, sedimentary rock is formed from the deposition and compression of sediment such as sand, silt, and clay. Cooling magma forms igneous rock when it solidifies.
Is limestone a intrusive igneous rock?
No, limestone is a sedimentary rock that forms from the accumulation of mineral particles such as calcite or aragonite. Intrusive igneous rocks are formed from the cooling and solidification of magma beneath the Earth's surface.
A rock that forms from cooling lava that is classified as what?
The rocks that are formed from cooling of lava are known as Igneous rocks.
What type of rock is formed when lava flowing from a volcano cools and hardens?
Igneous rock, specifically extrusive or volcanic rock, is formed when lava cools and hardens. This type of rock typically has small crystals due to the rapid cooling process and examples include basalt and rhyolite.
What is the difference between igneous and sedimentary rocks?
Igneous rock is formed from the solidification of magma or lava. Sedimentary rock is formed from the lithification of sediments, generally.
What sedimentary rock turns into the igneous rock basalt?
None. Basalt is formed by the rapid cooling of mafic (silica-poor) magma. It is not formed from sedimentary rock.
What is a rock formed y molten material cooling?
Igneous rocks are formed by lava or magma cooling
Is A rock with visible layers and no mineral crystals likely formed from lava?
No, a rock with visible layers and no mineral crystals is unlikely to have formed from lava. Such characteristics are typical of sedimentary rocks, which are formed from the accumulation and compaction of sediments. In contrast, igneous rocks that form from lava usually contain visible mineral crystals or a glassy texture due to rapid cooling. Therefore, the rock in question is more likely to be sedimentary rather than igneous.
