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Effects of Surface Water Seeping into the Earth’s Outer Core

Creates a crystal 100 kilometers thick





illustration of the layers of the earth (Freepik/rost9)

Scientists estimate that there is a mysterious layer called ‘E-prime’ which is thought to originate from water on the surface leaking into the outer core of the earth. Scientists also predict that the water produces crystals as a result of metal heart reactions.

Launching from the site Live ScienceIn the 1990s, geologists discovered that there was a thin layer surrounding the Earth’s outer core in the form of a sea of ​​liquid metal that swirled around the solid inner core.

This layer, dubbed the E-prime layer or E’ layer, is more than 60 miles (100 kilometers) thick and is about 1,800 miles (2,900 km) below the Earth’s surface.

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Created by leaking water

In a new study, published November 13 in the journal Nature Geoscience, researchers found that the E’ layer was likely created by water leaking from the Earth’s surface through sinking tectonic plates, then reacting with the metallic surface of the outer core.

If the new findings are correct, it means that the E’ layer has produced large amounts of silica crystals as a byproduct of this reaction, which are incorporated into the Earth’s mantle.

The emergence of various theories

Scientists previously theorized that the E’ layer was left behind by ancient magma rich in iron. Other theories suggest that the substance inside leaked out of the inner core or was formed during the Earth’s collision with a protoplanet that gave birth to the Moon and left chunks inside the Earth. However, none of these ideas was widely accepted.

In the study, the researchers conducted a series of laboratory experiments to simulate how water might react with the outer core under intense pressure.

This suggests that hydrogen from the water replaces the silica in the molten metal, forcing the silica out of the metal in crystalline form.

Therefore, the E’ layer is likely a hydrogen-rich, silica-deficient outer core layer, which contradicts previous assumptions about its composition.

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2023-11-28 22:05:00
#Effects #Surface #Water #Seeping #Earths #Outer #Core

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