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Timmons Erickson

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Articles

Cubic zirconia only forms under extreme temperatures, like those produced when an asteroid impacts Earth

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By Neeraja Chinchalkar, Gordon Osinski, Timmons Erickson, Gaby Clark Verified
| Phys.org Verified
When high-velocity asteroids land on Earth, they can form a meteor impact crater. Such collisions have occurred throughout Earth's history and still occur on other planetary bodies today. While most asteroid impacts on Earth happened millions of years ago, their remnants are still preserved across Earth's surface. Impact-affected rocks experience intense heat and pressure during the impact.
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Cubic zirconia only forms under extreme temperatures, like those produced when an asteroid impacts Earth Original

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By Neeraja Chinchalkar, Gordon Osinski, Timmons Erickson
| The Conversation Verified
When high-velocity asteroids land on the Earth, they can form a meteor impact crater. Such collisions have occurred throughout Earth’s history and still occur on other planetary bodies today. While most asteroid impacts on Earth happened millions of years ago, their remnants are still preserved across the Earth’s surface. Impact-affected rocks experience intense heat and pressure during the impact.
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One billion years ago, a meteorite struck Scotland and influenced life on Earth

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By Timmons Erickson, Tony Prave, Christopher L. Kirkland
| Phys.org Verified
We've discovered that a meteorite struck northwest Scotland 1 billion years ago, 200 million years later than previously thought. Our results are published today in the journal Geology. This impact now aligns with some of Earth's earliest known, land-based, non-marine microbial fossils, and offers new insights into how meteorite strikes may have shaped our planet's environment and life.
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