Sentences with phrase «liquid iron outer»

Not exact matches

The planetary architecture that provides Earth's sheltering field has been broadly understood for several decades now: a solid - iron inner core roughly the size of the moon, surrounded by a 1,400 - mile - thick outer core of liquid iron and nickel, with 1,800 miles of solid mantle above, topped by a crust of slowly drifting tectonic plates.

Two years ago, a team of scientists from two British universities discovered that liquid iron, at the temperatures and pressures found in the outer core, conducts far more heat into the mantle than anyone had thought possible.

The discovery is vexing: If liquid iron conducts heat into the mantle at such a high rate, there wouldn't be enough heat left in the outer core to churn its ocean of liquid iron.

The researchers show that this effect could continuously stimulate the motion of the liquid iron alloy making up the outer core, and in return generate Earth's magnetic field.

Sitting on top of the liquid outer core, it may sink slightly, disturbing the flow of iron and ultimately affecting Earth's magnetic field.

This shield is produced by the geodynamo, the rapid motion of huge quantities of liquid iron alloy in the Earth's outer core.

This mechanical forcing applied to the whole planet causes strong currents in the outer core, which is made up of a liquid iron alloy of very low viscosity.

The magnetic field is generated by swirling, liquid iron in Earth's outer core.

The Outer Core Made of molten iron, nickel, and other ingredients yet to be determined, the churning liquid outer core may have the viscosity of water, streaming at possibly one to several miles per week with the turbulence of a gargantuan, slow - moving washing macOuter Core Made of molten iron, nickel, and other ingredients yet to be determined, the churning liquid outer core may have the viscosity of water, streaming at possibly one to several miles per week with the turbulence of a gargantuan, slow - moving washing macouter core may have the viscosity of water, streaming at possibly one to several miles per week with the turbulence of a gargantuan, slow - moving washing machine.

The Earth's magnetic field is generated by the flow of liquid iron, an electrical conductor, in the Earth's outer core, between 3000 and 5000 kilometres beneath the surface.

Below the mantle is the outer core, composed of liquid, molten iron and nickel, which envelopes an inner core of solid iron at the center of the planet.

Mercury's peculiar magnetic field provides evidence that iron turns from a liquid to a solid at the core's outer boundary, say the scientists, whose research currently appears online in the journal Geophysical Research Letters and will be published in an upcoming print edition.

Within Earth's core, iron turns from a liquid to a solid at the inner boundary of the planet's liquid outer core; this results in a solid inner part and liquid outer part.

The new data should help scientists better model the movement of liquid iron in the outer core, which gives rise to Earth's magnetic field, says Duncan Agnew, a geophysicist at Scripps Institution of Oceanography in San Diego, California.

By looking in detail at the seismic record, you can deduce that Earth has a liquid outer core and a solid inner core, and that both are mostly iron.

The core of the Earth contains an inner layer, an iron - rich solid ball, and an outer layer, of liquid iron and nickel, with a mantle of silicate.

The motion of liquid iron in the outer core is itself driven by the continuous loss of heat from the inner core.

Earth's magnetic field is thought to be generated largely by an ocean of superheated, swirling liquid iron that makes up Earth's outer core 3000 km under our feet.