inner core. noun. in geology, the innermost part of a core, specif. a solid sphere in the middle of the fluid core such as the iron-nickel core of the Earth.
Inner Core Facts. Earth's innermost section is called its inner core, and is believed to be just as hot as the sun's surface. It was once believed that the earth's inner core was liquid, but Inge Lehmann - a seismologist - proved in theory in 1936 that the inner core was solid, and the outer core was liquid.
What Is the Function of the Earth's Core? The Earth's core comprises a solid inner core and liquid outer core, both made mostly of iron. ... Earth scientists have theorized that the Earth's core is responsible for the planet's magnetic field as well as plate tectonics.Apr 25, 2017
At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km), according to NASA. It is surrounded by a liquid, outer core composed of a nickel-iron alloy.Nov 14, 2017
Earth's inner core is solid: Official. The core of the Earth is made up mainly of iron, in an outer liquid layer and an inner solid layer. The outer core is where the circulating conducting liquid generates the geodynamo, responsible for our magnetic field.Oct 1, 2008
Inner Core Facts. Earth's innermost section is called its inner core, and is believed to be just as hot as the sun's surface. It was once believed that the earth's inner core was liquid, but Inge Lehmann - a seismologist - proved in theory in 1936 that the inner core was solid, and the outer core was liquid.
The liquid iron in the outer core is an excellent electrical conductor, and creates the electrical currents that drive the magnetic field. ... Earth's magnetic field is crucial to life on our planet. It protects the planet from the charged particles of the solar wind.Aug 17, 2015
What Is the Function of the Earth's Core? The Earth's core comprises a solid inner core and liquid outer core, both made mostly of iron. ... Earth scientists have theorized that the Earth's core is responsible for the planet's magnetic field as well as plate tectonics.Apr 25, 2017