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Home / Science / The Earth's Core Is Licking: Scientists Do not Know Why This Is the Case for 2.5 Billion Years | Science | news

The Earth's Core Is Licking: Scientists Do not Know Why This Is the Case for 2.5 Billion Years | Science | news



The Earth's core in the dead center of the planet burns at an incredible 7,952 to 11,012 degrees Celsius (4,400 to 6,100 degrees Celsius). This nightmarish hellish landscape of molten iron and nickel is more than 6,000 km (6,300 miles) down. Due to the metal composition of the core, the core is the main driving force for the planet's natural magnetic field. But the kernel has penetrated the various layers of the Earth for nearly half the planet's age, and some of the material could even reach the surface.

The incredible finding was presented by a team of geologists in the journal Geochemical Perspectives Letters.

The study revealed that a "core-shell exchange" takes place between the molten core and the planetary shell.

The mantle is the inner, bulky layer of material within the earth directly above the ground core and below the crust.

According to the new investigations, a material exchange between core and mantle has been taking place for at least 2.5 billion years.

READ MORE: USGS reveals how the magma chamber has lifted up Yellowstone

  Earth's core licks: Earth's core and mantle

Earth's core licks: material from the burning core moves into the mantle (Image: GETTY)

  Earth core licks: diagram of Earth layers

Earth core licks: The core consists of molten rock surrounding [19459016herumwirbelt] (Image: GETTY)

The authors of the study, Hanika Rizo of Carlton University , David Murphy from the Queensland University of Technology and Denis Andrault from the Université Clermont Auvergne, discussed their findings in an article for The Conversation.

Volcanic activity is the main cooling mechanism of the planet.

"Certain volcanism, such as that which still forms the volcanic islands of Hawaii and Iceland, could be connected to the nucleus by mantle clouds that transfer heat from the nucleus to the earth's surface. [19659003] "Whether there is an exchange of physical material between the core and the mantle has been controversial for decades."

READ MORE: USGS Unveils the Fearsome Chances of a Yellowstone Outbreak in Our Lives [19659002] Based on the new study, molten material leaks from the core into the bottom of the mantle.

Volcanic activity is the main cooling mechanism of the planet.

Hanika Rizo, David Murphy, and Denis Andrault

This leak was discovered. This happened about 2.5 billion years ago, when geologists discovered that the chemical composition of the mantle has changed drastically.

Researchers looked for "chemical tracers" of nuclear material in the Earth's mantle.

They found these tracers in volcanic rock samples taken deep in the mantle.

READ MORE: Yellowstone "can kill 5 BILLIONS," warns geologist

These tracers were isotopes of chemical tungsten

The researchers analyzed rocks on the isotopes of tungsten 182 (W-182) and Wolfram-184 (W-184).

They wrote: "Interestingly, in the Earth's oldest volcano rock over a period of 1 .8 billion years, there is no significant change in the tungsten isotopes of the mantle.

"This indicates that between 4.3 billion and 2.7 billion years ago, little or no material was transferred from the core to the upper mantle.

READ MORE: Yellowstone Magma Chamber & # 39; Four Times Larger Than Thought & # 39;

"Over the next 2.5 billion years, however, the tungsten isotopic composition of the mantle has changed significantly.

"We conclude that plate tectonics is changing. Towards the end of the Archeological Era, about 2.6 billion years ago, the Earth's mantle produced enough convection currents to alter the tungsten isotopes of all modern rocks.

The earth is estimated to be only 4.543 billion years old.

] When the nucleus of the planet took shape for the first time, geologists believed it consisted entirely of molten liquid.

  Earth's core is leaking: Earth's core diagram "title =" Earth's core is leaking: Earth's core map "data-w =" 590 "data-h =" 491 "/> </source></picture></p>
<p><span class= Earth's core leaks: tungsten from the core was found in volcanic rock from the earth's mantle (Image: NEIL BENNETT)

  Earth's core licks: diagram of the earth's core "title =" Earth's core licks: diagram of the earth's core "data-w =" 590 "data-h =" 594 " /> </source></picture></p>
<p><span class= Earth's core licks: The core of the earth creates the magnetic field (Photo: GETTY)

However, over billions of years, the core has begun to cool and settle.

The spin of liquid metal deep inside our planet gives Earth its magnetic field.

One reason why the core could leak up is the trickling down of material from the surface to the core.

According to the study, the subduction of oxygen-rich surface material could replace tungsten in the mantle.

How does the earth's core create a magnetic field?

The outer layer of the Earth's core is c As a result of the intense warming and the chemical processes that take place, the process is constantly moving.

According to the US Geological Survey (USGS), the process behaves like a "naturally occurring electric generator".

The USGS said, "Basically, the movement of electrically conductive iron in the presence of the earth's magnetic field induces electrical currents."

"These electrical currents create their own magnetic field, and as a result of this internal feedback, the process is self-supporting as long as it does is an energy source sufficient to sustain convection. "


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