The boundary region between the mantle and the rocky middle layer of the planet and the molten mineral core may be Diamondproductive area!
according to Modern lab experienceElements such as iron, carbon and water, all potential components found near the core-mantle boundary, can combine to make diamonds when exposed to high temperatures and pressures.
If this process also occurs deep in the Earth, it may be able to explain the mantle anomalies, such as why it contains more carbon than scientists expect.
Two massive points
As I mentioned space.com, The study results may shed light on enigmatic structures found deep in the core-mantle boundary, where earthquake waves show significant slowdowns.
These areas are often referred to as “very low speed zones,” and may be only a few miles wide or hundreds of miles wide. It is also associated with peculiar mantle structures, such as Two massive points Under Africa and the Pacific.
Many experts believe that it is made of ingredients that date back to the beginning of the Earth and is 4.5 billion years old. But according to a recent study, some of these regions may have developed as a result of plate tectonics, which may have started 3 billion years after the formation of the Earth.
In addition, investigations visualizing the mantle using reflected seismic waves have revealed that material from the crust may reach the core-mantle boundary, which lies about 1,900 miles (3,000 km) below the Earth’s surface.
Tectonic plates slide under each other at subduction zones, pushing oceanic crust deeper into the Earth. Water has been trapped in the minerals of the rocks that make up this oceanic crust, according to Space.com.
The study’s lead author, Sang-Heon Shim, said that water may be present at the core-mantle boundary and be able to trigger chemical reactions there.
Putting the theory to the test
To put the theory to the test, the researchers combined components in the core-mantle barrier and compressed them with a diamond anvil at pressures of up to 140 gigapascals. The researchers also heated the materials to 6,830 degrees Fahrenheit (3,776 degrees Celsius).
According to Shim, water behaves fundamentally different near the core-mantle boundary than it behaves at the Earth’s surface.
Cleavage occurs between oxygen molecules and hydrogen molecules. The iron It will then attract hydrogen due to extreme pressure and as a result, the oxygen from the water stays in the mantle while the hydrogen fuses with the core.
This causes hydrogen to appear to replace the other light elements in the core, the most important of which is carbon. This carbon is pushed into the mantle from the core. The most stable form of carbon at high pressures found at the primary interface is diamond.
This is how diamonds are formed, said Shem.
According to the ratio of elements in stars and other planets, the mantle contains three to five times more carbon than scientists expect. Shim said diamonds discovered in this layer may explain the discrepancy.
Shim and his team calculated that enough diamonds could be produced to account for carbon levels in the crust if 10% to 20% of the water in the oceanic crust reached the core-mantle boundary.
However, the team has to confirm this first by digging thousands of kilometers underground.
Shim suggested two ways to search for evidence, one of which is to look for features that may be diamond clusters near the core barrier and mantle, and another approach entails studying diamonds that may have originated from the deepest levels of the Earth’s mantle.
But until then, we will know if there really is a diamond factory in the depths of our planet!
Related articles: This ultra-deep diamond reveals how the Earth’s layers work
This article is owned by Tech Times
By Joaquin Victor Tacla
ⓒ 2022 TECHTIMES.com All rights reserved. Do not reproduce without permission.