Layers based on chemical composition are the core, mantle and crust. According to mechanical properties, Earth's layers are the lithosphere, asthenosphere, lower mantle (also known as mesospheric ...

Researchers have recreated the tumultuous beginnings of Earth, simulating what the planet was like just after its formation 4 ...

The mantle. The mantle isn't liquid, but it's less rigid than sinking oceanic crust, ... (2,900 km), according to the Seismin project, and there's an upper mantle and a lower mantle.

Something unusual is happening deep within Earth’s mantle,around 1,700 miles below the surface, where seismic waves accelerate in a way that has left scientists scratching their heads for decades.

Scientists created a simulation showing that early Earth still retained chemical traces of its igneous youth, 4.5 billion years ago.

Analysis of the incredibly rare gem suggests a soggy environment in the Earth's lower mantle. ... 70 percent of our planet’s surface is covered with the life-supporting liquid.

Other key aspects such as flow in the liquid core are very hard to study using seismology. Flow in the liquid core can be derived from other indirect observations that provide constraints on ...

They reveal that the chemical composition of the deep mantle has remained almost intact since the Earth's formation 4.5 ...

Next is the liquid outer core, made of molten iron and nickel, ... Full-waveform inversion reveals diverse origins of lower mantle positive wave speed anomalies. Scientific Reports, 14(1).

An analysis of Hawaii’s volcanic rocks revealed Earth’s core is leaking gold and other precious metals, a study found. The elements emerge when ocean islands form.