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Surface waves such as Love waves and Rayleigh waves refract when they encounter the core beneath the Earth's surface. These waves cannot penetrate the core due to the difference in density and composition between the core and the surrounding layers of the Earth.

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1y ago

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What tells us that the inner core is made up of iron?

The inner core is believed to be made up of iron due to seismic studies which show that seismic waves travel faster in the inner core than in the outer core. This indicates that the inner core is likely solid, with iron being the most abundant and stable material at high pressure and temperature conditions found in the Earth's core. Additionally, experiments conducted in laboratories suggest that iron is capable of being solid at the extreme pressures and temperatures present in the inner core.


Shadow zones are areas where seismically waves do not travel?

Shadow zones are regions on Earth where seismic waves are unable to reach due to the planet's core structure blocking or refracting them. These zones help scientists to understand Earth's interior composition by observing the behavior of seismic waves as they travel through different layers of the planet. Shadow zones can vary in size and shape depending on the type of seismic waves and the properties of the Earth's core.


In which layers can P waves pass through?

P waves can pass through the Earth's inner core, outer core, mantle, and crust. They are the fastest seismic waves and are the first to be recorded on seismographs during an earthquake.


In which area do seismic waves change dramaticaly?

Seismic waves can change dramatically when they encounter boundaries between different geological materials with contrasting densities and elastic properties, such as the crust-mantle boundary or the core-mantle boundary. These changes in seismic wave behavior are key in helping scientists study the internal structure of the Earth.


Why do scientists think that the core is made up of iron?

Scientists believe that the Earth's core is made up of iron based on seismic data, magnetic field studies, and experiments under extreme pressure and temperature conditions that suggest iron is the most likely candidate for the core's composition. The density and behavior of iron at high pressures and temperatures align closely with the properties observed in the Earth's core.

Related Questions

Which seismic body wave can penetrate the Earth's core?

P waves are seismic body waves that can penetrate the Earth's core. They are the fastest seismic waves and can travel through both solid and liquid materials, allowing them to pass through the Earth's core.


Which seismic body wave doesn't penetrate the Earth's core?

S-Wave. They are not able to travel through the liquid outer core.


A body earthquake wave that can't penetrate the earth's core?

A body earthquake wave that cannot penetrate the Earth's core is called a P-wave. P-waves are the fastest seismic waves and travel through the Earth by compressing and expanding the rock. While they can travel through the Earth's core, their speed and path are altered, causing them to refract instead of penetrate it.


What is a body wave that can penetrate the earths core?

A seismic body wave that can penetrate the Earth's core is called a P wave (Primary wave). P waves are the fastest seismic waves and they can travel through both solid and liquid layers of the Earth, including the core.


A body wave that doesn't penetrate the earth's core?

A body wave that doesn't penetrate the Earth's core is a type of seismic wave known as a S wave. S waves, also called secondary waves, are slower than P waves and only travel through solids. They cannot pass through the liquid outer core of the Earth.


A body earthquake wave the can penetrate the Earth's core?

Body earthquake waves that can penetrate the Earth's core are known as primary waves, or P-waves. They are the fastest seismic waves and can travel through both solid and liquid materials, including the Earth's inner core.


What is one way that scientist the outer core is liquid?

some kinds of seismic waves cannot travel through liquids, such as the outer core.


What is one way the scientists know the outer core is liquid?

some kinds of seismic waves cannot travel through liquids, such as the outer core.


What is one way scientist know the outer core is liquid?

some kinds of seismic waves cannot travel through liquids, such as the outer core.


What is one way that scientists know the outer core is liquid?

Scientists know the outer core is liquid because S waves, which cannot travel through liquid, are not detected beyond the core. Additionally, seismic waves from earthquakes have shown that P waves slow down significantly when passing through the outer core, indicating it is a liquid layer.


What have seismic studies discovered about earths core?

the outer core is liquid; the inner core is solid


What is a body wave that does not penetrate the earth's core?

A body wave that does not penetrate the Earth's core is a compressional wave or P-wave. P-waves travel through the Earth by compressing and expanding the material they pass through, but they do not travel through the outer core because the outer core is liquid.