"crystal" in inglés with examples - Collocation dictionary inglés
- Scientists dated the impact by measuring the decay of uranium in zircon crystals in the rock.
- On the other hand, nepheline syenite gneiss contains abundant and large zircon crystals.
- The oldest, a zircon crystal from Australia, is nearly 4.3 billion years old.
- Zirconium is one of the main components of zircon crystals, currently the oldest known minerals in the earth's crust.
- In the rocks, the scientists found zircon crystals as old as 4.28 billion years.
- More recently, Dr. Valley developed new techniques to analyze the oxygen within zircon crystals.
- A second team of scientists dated other zircon crystals taken from the same site in 1999, finding one crystal 4.3 billion years old.
- A zircon crystal is an example of an elongated square bipyramid.
- The Earth is a little over 4.5 billion years old, its oldest materials being 4.3 billion-year-old zircon crystals.
- The remarkable precision is possible because the fossils were sandwiched between lava flows that could be precisely dated from embedded zircon crystals.
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