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2021-05-15

Can regional metamorphism happen?

Can regional metamorphism happen?

As described above, regional metamorphism occurs when rocks are buried deep in the crust. This is commonly associated with convergent plate boundaries and the formation of mountain ranges. Because burial to 10 km to 20 km is required, the areas affected tend to be large.

What is the example of dynamic metamorphism?

Dynamic metamorphism, or cataclasis, results mainly from mechanical deformation with little long-term temperature change. Textures produced by such adjustments range from breccias composed of angular, shattered rock fragments to very fine-grained, granulated or powdered rocks with obvious foliation and lineation.

What type of metamorphism would create a diamond?

Methods of Diamond Formation Many people believe that diamonds are formed from the metamorphism of coal. That idea continues to be the “how diamonds form” story in many science classrooms. Coal has rarely – if ever – played a role in the formation of diamonds.

What Rocks are diamonds found in?

Kimberlite

  • Kimberlite is an igneous rock, which sometimes contains diamonds.
  • Kimberlite occurs in the Earth’s crust in vertical structures known as kimberlite pipes, as well as igneous dykes.

Can you turn coal into a diamond?

Asteroid strikes may have created some others, as millimeter-sized diamonds have been found in some craters. But there’s no coal in outer space, so once again these tiny diamonds were probably formed by pure carbon. So no, it turns out that coal can’t be turned into diamonds

Which is more valuable coal or diamond?

A one pound diamond is worth anywhere from $2-6M depending on its grade. A pound of coal is worth a few pennies. Paradoxically, though diamonds cost more than coal, coal is more valuable.

What are the differences and similarities between coal and diamond?

Coal is an impure carbon, it has impurities like oxygen, nitrogen, sulphur etc. Diamond requires a very pure form of carbon. If there is any impurity in diamond there will be a colour change. Diamonds are formed much lower on Earth than the levels at which coal is formed.

Why is coal valuable?

Given the environmental and safety issues, why do we still mine coal? In a world where carbon emissions are not taxed, coal is a very inexpensive and efficient way to generate electricity. Coal is also one of the most abundant energy sources in the entire world, and it’s relatively efficient for generating electricity

What is the current price of coal?

Energy

Name Price Unit
Coal 68.50 USD per Ton
RBOB Gasoline 1.94 USD per Gallone
Uranium 28.50 USD per 250 Pfund U308
Oil (Brent) 64.46 USD per Barrel