WebEarth's innermost layer is the core, which is separated into a liquid outer core and a solid inner core. The outer core is 2,300 kilometers (1,429 miles) thick, while the inner core … Web22 jul. 2024 · New research suggests that Earth’s ‘solid’ inner core is in fact endowed with a range of liquid soft and hard structures which vary across the top 150 miles of the inner core. 3 200 miles beneath Earth’s surface lies the inner core a ball-shaped mass of mostly iron that is responsible for Earth’s magnetic field.

Earth

Web12 jun. 2024 · If you were to peer more than 3,000 miles below your feet into the planet's center, you'd see a dense, solid ball of iron roughly three-quarters the size of the moon. That iron spheroid is the... Web9 jan. 2024 · about 760 miles 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. The outer core is about 1,355 miles (2,180 km) thick. The inner core spins at a different speed than the rest of the planet. What are 5 facts about the inner ... sly brook maine

What is the composition of the inner and outer core? - Studybuff

Web15 dec. 2024 · The inner core is a solid sphere made of iron and nickel metals about 759 miles (1,221 kilometers) in radius. There the temperature is as high as 9,800 degrees Fahrenheit (5,400 degrees Celsius). … Earth's inner core is the innermost geologic layer of planet Earth. It is primarily a solid ball with a radius of about 1,220 km (760 mi), which is about 20% of Earth's radius or 70% of the Moon's radius. There are no samples of Earth's core accessible for direct measurement, as there are for Earth's mantle. Information … Meer weergeven Earth was discovered to have a solid inner core distinct from its molten outer core in 1936, by the Danish seismologist Inge Lehmann, who deduced its presence by studying seismograms from earthquakes in Meer weergeven Seismic wave velocity The velocity of the S waves in the core varies smoothly from about 3.7 km/s at the center to about 3.5 km/s at the surface. That is … Meer weergeven Many scientists had initially expected that the inner core would be found to be homogeneous, because that same process should have proceeded uniformly during its entire formation. It was even suggested that Earth's inner core might be a Meer weergeven Because the inner core is not rigidly connected to the Earth's solid mantle, the possibility that it rotates slightly more quickly or slowly than the rest of Earth has long been … Meer weergeven Seismic waves Almost all direct measurements that scientists have about the physical properties of … Meer weergeven There is still no direct evidence about the composition of the inner core. However, based on the relative prevalence of various … Meer weergeven The Earth's inner core is thought to be slowly growing as the liquid outer core at the boundary with the inner core cools and solidifies due to the gradual cooling of the Earth's interior (about 100 degrees Celsius per billion years). According to … Meer weergeven Web25 sep. 2024 · About 31 to 62 miles is thick B. Both solid and flowing C. Located between the inner and outer core D. Composed of melted, liquid metal See answers Advertisement throwdolbeau The description that states the earth’s mantle as both solid and flowing is true. Hence, option B is considered correct. slybroadcast recording center