Description

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Context
- Pink diamonds are among the most costly stones in the world due to their scarcity and beauty.
- More than 90% of all pink diamonds ever were unearthed at the Argyle mine in Australia's far northwest. Most other diamond mines, on the other hand, are in the center of a continent.
Pink Diamond Forming Ingredients
- Three elements are required for the production of the Pink diamond. Two of the three components required to create pink diamonds were already known.
- The first component is carbon, which must be more than 150 kilometers underground.
- The second factor is the appropriate amount of pressure used to color the diamonds.
- The third and final missing component was the event that caused the diamonds to rocket to the surface.
- The tremendous pressure that twisted color into the diamonds occurred 1.8 billion years ago during collisions between western and northern Australia.
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The Key Missing Ingredient
- Pink diamonds were introduced to the earth's surface by the break-up of the first supercontinent Nuna some 1.3 billion years ago, according to a study published in the journal Nature Communications.
- The "scar" from that event was exacerbated as Nuna began to break up.
- Magma rushed up through this old scar, carrying the gems with it.
Significance
- Knowing the "missing ingredient" for pink diamonds may aid future efforts to locate the precious stones.
- Old mountain belts marking Nuna's split near the boundaries of continents, such as Canada, Russia, southern Africa, and Australia, may also be home to a new "pink diamond paradise."
Key facts about Nuna
- It is an ancient supercontinent that once existed on the surface of our planet.
- Nuna is thought to have existed between 1.6 and 2.5 billion years ago, predating even the legendary Pangea by a significant amount.
- Nuna's formation is being actively mapped by researchers using geological and paleomagnetic data.
- These hints point to Nuna bringing together bits of what we now call North America, northern Europe, and sections of Siberia.
- This supercontinent went through several cycles of joining together and breaking apart. The Earth's surface was changed by each stage of assembly and dispersal.
- These alterations resulted in the construction of new geological formations, which laid the framework for the following continents.
- One of the most exciting discoveries concerning Nuna is its relationship to Earth's atmospheric evolution.
- Volcanic activity increased as Nuna developed. These volcanoes emitted massive amounts of carbon dioxide, helping to shape the planet's early atmospheric conditions and possibly impacting the fate of life.
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PRACTICE QUESTION
- Consider the following statements regarding Pink diamond:
- More than 90% of all pink diamonds ever were unearthed at the Argyle mine in Australia.
- Pink diamonds were introduced to the earth's surface by the break-up of the first supercontinent Nuna.
Which of the above statements is/are correct?
- A) 1 only
- B) 2 only
- C) Both 1 and 2
- D) Neither 1 nor 2
Answer: C
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