Thermostatic Bath,Thermostatic Bath Mixer,Thermostatic Bath Filler,Thermostatic Bath Mixer Tap Zenith Lab (Jiangsu) Co.,Ltd , https://www.zenithlabo.com
According to a geological study published in the British journal Nature-Communication on the 21st, the oxidation of sulfides in the mantle may induce the formation of diamonds. This finding constitutes a direct evidence that diamonds are formed by nucleation above the sulfides in the mantle. A diamond is a simple crystal composed of carbon formed under the high pressure and high temperature of the earth. The fine minerals and fluids enclosed in the diamond can be used to observe what is happening inside the earth. In various geological formations, diamonds are generally considered to be formed by fluids and melts in the mantle.
Sulfides are rare in the mantle, but they are very rich in the contents of diamonds, especially sulfides rich in iron and nickel (iron-nickel sulfides), such as pyrrhotite found in diamonds. . However, to date, scientists have no direct evidence to explain this phenomenon.
This time, Dolly Jacobs and his colleagues at Macquarie University in Australia used a technique called "Kikuchi Transmission Diffraction" to accurately determine crystal orientation, in a diamond from Botswana. The microstructure of iron-nickel sulfide is imaged and mapped. Using this technique, they can analyze the history of diamond formation. The researchers found that the natural oxidation process from pyrrhotite to magnetite at the upper mantle 320 to 330 km underground can cause diamond precipitation, and as the diamond nucleates and grows around the inclusions, it will The contents are wrapped up.
The researchers pointed out that this reaction occurs in the local location of the mantle rich in sulfides and becomes a "diamond factory." Although diamonds have different forms of formation in different geological formations, this study suggests that sulfides may play an important role in diamond formation.
Research: Sulfides may play an important role in diamond formation
Abstract Sulfide is actually a "good friend" of diamonds? According to a geological study published in the British journal Nature-Communication on the 21st, the oxidation of sulfides in the mantle may induce the formation of diamonds. This hair...
Sulphide is actually a "good friend" of diamonds?