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The Earth's crust includes oceanic and continental categories, the oceanic crust composed of basalt rock and recycled in roughly 150 million year intervals by lithospheric plate movements, and the older less dense continental crust, composed of granitic rock.

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Why is there less silica in ocean water than river and ground water?

almost no silica in ocean water but most of its the earths crust.


Is the earth's crust includes both ocean floor and dry land?

Yes, the Earth's crust includes both the ocean floor and dry land. The crust is the outermost layer of the Earth, composed of continental crust (which forms the continents) and oceanic crust (which forms the ocean floor). While the continental crust is generally thicker and less dense, the oceanic crust is thinner and denser. Together, they make up the Earth's lithosphere.


Where is most of the earths new crust found?

Most of Earth's new crust is found along mid-ocean ridges, underwater mountain ranges where tectonic plates are moving apart. This is where magma rises from the mantle to create new crust through volcanic activity.


What rock type is most abundant in the crust of the ocean floors?

The most abundant rock type in the ocean floor crust is basalt. This volcanic rock forms from the rapid cooling of lava at mid-ocean ridges and is a key component of oceanic crust. Basalt is typically dense and rich in iron and magnesium, distinguishing it from the continental crust, which is primarily composed of lighter granitic rocks.


What is the thinest part of the earths crust under the ocean called?

The thinnest part of the Earth's crust under the ocean is called the oceanic crust. It typically ranges from about 5 to 10 kilometers thick, making it significantly thinner than continental crust, which can exceed 30 kilometers in thickness. The oceanic crust is primarily composed of basalt and is formed at mid-ocean ridges through volcanic activity.

Related Questions

Why the oceans floor is considered part of Earth's crust?

earths crust includes ocean floors and


The layer of the earths crust that is not covered by ocean water is called what?

continental crust


What covers about three fourths of the earths surface and most of the ocean floors?

water


Which earths layer includes the land that that make up the continents and land under the ocean?

this is the crust which is the very thin layer which has land in the water


Which earths layer includes the land that make up the continents and land under the ocean?

The layer that includes the land making up continents and the land under the ocean is the crust, which is the outermost layer of the Earth's surface. It is divided into continental crust, which forms the continents, and oceanic crust, which lies beneath the oceans.


What is the uppermost layer of the earth?

The uppermost layer of the Earth is called the crust. It is divided into two types: continental crust, which makes up the landmasses, and oceanic crust, which forms the ocean floors. The crust is thinnest under the oceans and thickest under mountain ranges.


Does the earths crust include both the ocean floor and dry land?

Yes, the Earth's crust includes both the ocean floor and dry land. The crust is the outermost layer of the Earth, made up of continental crust (which forms dry land) and oceanic crust (which forms the ocean floor). Together, these two types of crust make up the Earth's lithosphere, supporting a variety of geological features and ecosystems.


Where can you find sodium in earth or ocean?

Sodium is found in the Earths crust!! But i don't know about the ocean!! And Sodium is salt!!


How and why does the earths crust vary from place to place?

The earths crust its 5-70km deep in the ocean and upto 100km deep at mountain ranges. At certain areas, the crust is unstable due to moving plate tectonics.


How and why does the earths crust varies from place to place?

The earths crust its 5-70km deep in the ocean and upto 100km deep at mountain ranges. At certain areas, the crust is unstable due to moving plate tectonics.


Why are ocean floors the newest crust on the earth?

The reason for this is that the ocean floor is ever changing and is never in the same possition due to current.


Does the earths crust extend deeper below the continents or below the ocean basins?

Earths crust extend deeper below the continents than below the oceans basins (or at least this is what I think).