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No, it is an extrusive igneous rock, which means it is made on the Earth's surface, as opposed to intrusive (or plutonic) rocks, which are made under the Earth's crust. Obsidian is most often produced by the rapid cooling of silica-rich lava, such as by contact with water, which crystallizes the lava into a glassy solid.
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Earths crust is mostly made of what iron oxygen or silicon?
Earth's crust is mostly made of silicon and oxygen, forming minerals such as feldspar and quartz. Iron is also present in smaller amounts in the Earth's crust.
Where is the thickest crust found on earth?
The thickest crust on Earth is found beneath the continents, known as continental crust. This type of crust can be up to 70 kilometers (43 miles) thick, while oceanic crust is typically much thinner, around 5-10 kilometers (3-6 miles) thick.
What is the crust under the oceans made of?
The crust under the oceans is primarily made of basaltic rock, which is formed from cooled volcanic lava. It is thinner and younger than continental crust, and is constantly being created and destroyed through the process of seafloor spreading.
What type of crust is the earths tectonic plates made up of?
The Earth's tectonic plates are made up of the lithosphere, which consists of the crust and the upper part of the mantle. The crust is primarily composed of solid rock made up of elements such as oxygen, silicon, aluminum, and iron.
Compared to earths continental crust earths oceanic crust is?
Earth's oceanic crust is thinner, denser, and younger than Earth's continental crust. It is primarily composed of basaltic rock, whereas continental crust is made up of less dense granitic rock. Oceanic crust is constantly being formed at mid-ocean ridges and destroyed at subduction zones.
What materials are the earths crust made of?
it is made of rocks
What percentage of carbon is made up of earth's crust?
About 7% of the earths crust
Where is new silicon mined?
silicon is mined in near the earths crust, and it is also is made of 27.7% earths crust hope this helps
Earths crust is made of the metal alluminum?
10%
What does 'made of Earth' mean?
it means something is made of the earths crust
What composition is earths crust?
oceanic crust is made of basalt while continental crust is made of silica rich rocks like granite.
What is the state of silicon?
yes it is because it is made from earths crust
What is much of earths crust made up of?
Water 75%
The earths crust is made of rock sections called?
Continental plates.
What layer of earth is made up of plates that move?
The earths crust
What is the earths crusts material?
The earth's crust is made out of rock and soil
What mineral is made when the earths mantle and crust compose into a rock form?
diamond
