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- Inner Core. Temperature: 5,000°C – 6,000°C. State: Solid. Composition: iron and nickel. The Earth’s inner core is a huge metal ball, 2,500km wide. Made mainly of iron, the temperature of the ball is 5,000°C to 6,000°C – that’s up to 6,000 times hotter than our atmosphere and scorching enough to make metal melt!
- Outer Core. Temperature: 4,000°C – 6,000°C. State: Liquid. Composition: iron, nickel, sulphur and oxygen. This liquid layer of iron and nickel is 5,150km deep.
- Lower Mantle. Temperature: 3,000°C. State: solid. Composition: iron, oxygen, silicon, magnesium and aluminium. The lower mantle is found between 670km and 2,890km below the surface, and is made from solid rock.
- Upper Mantle. Temperature: 1,400°C – 3,000°C. State: liquid / solid. Composition: iron, oxygen, silicon, magnesium and aluminium. This layer is up to 670km below the Earth’s surface.
Apr 30, 2023 · Earth is made up of several layers. Layers based on chemical composition are the core, mantle and crust. According to mechanical properties, Earth's layers are the lithosphere, asthenosphere ...
- The Crust
- The Mantle
- The CORE
The crust is the outer layer of the Earth. It is the thinnest layer of the earth compared to the other layers. Its thickness varies from 5 kilometers in the ocean floor to about 70 kilometers on the land surface. The crust is subdivided into huge plates that float into the next layer of the earth (mantle). The plates are constantly moving but at a ...
The mantle is under the crust and is approximately 2,890 kilometers deep. It is by far the thickest layers and accounts for 85% of the volume of the Earth. The layer can be divided into upper and lower mantles. The great pressure on the lower mantle makes it completely solid while the upper mantle, also known as the asthenosphere, is liquid and flo...
The Earth’s core is divided into inner and outer cores. Both cores are mainly made up of iron and nickel. The difference between the inner core and the outer core is that the mineral in the inner core is solid while those in the outer core are liquid. The inner core is as hot as the sun but because of the pressure from the weight of the earth pushi...
- John Misachi
Earth's outer core is a fluid layer about 2,260 km (1,400 mi) in height (i.e. distance from the highest point to the lowest point at the edge of the inner core) [36% of the Earth's radius, 15.6% of the volume] and composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. [31]
- Crust. Temperature: 475 K (∼200°C) at the surface to 1300 K (∼1000°C) Thickness: 25 miles (32 km) for continental crust and 3-5 miles (8 km) for oceanic crust.
- Upper Mantle. Temperature: 1200 K (∼ 932°C) at the upper boundary with the crust to 1900 K (∼1652 °C) at the boundary with the lower mantle. Thickness: 255 miles (410 km)
- Lower Mantle. Temperature: 1900 K (∼ 1600°C) in the outer regions which can reach up to 4300 K (∼4000°C) at the bottom. Thickness: 1,400 miles (2,250 km)
- Outer Core. Temperature: 4,300 K (4,030°C) in the outer regions to 6,000 K (5,730°C) closest to the inner core. Thickness: 1,355 miles (2,180 km) Density: 9,900 – 12,200 kg/m3.
Dec 8, 2023 · It is the innermost layer surrounding the earth’s centre. The core is separated from the mantle by Guttenberg’s Discontinuity. It is composed mainly of iron (Fe) and nickel (Ni) and hence it is also called as NIFE. The core constitutes nearly 15% of earth’s volume and 32.5% of earth’s mass.
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What is the structure of Earth's interior?
The Earth's Structure. The earth is made up of three different layers: the crust, the mantle and the core. The crust This is the outside layer of the earth and is made of solid rock, mostly basalt and granite. There are two types of crust; oceanic and continental. Oceanic crust is denser and thinner and mainly com posed of basalt.
