Asteroid Impact Created Huge North Sea Crater
Here’s a breakdown of the key facts from the provided text about the Silverpit crater:
* Location: North Sea, making it the only impact crater near the UK.
* Finding: First found in 2002 by petroleum geoscientists.
* Size: Approximately 2 miles wide,with a surrounding zone of circular faults spanning 12 miles.
* Age: Estimated to be over 60 million years old.
* Initial Belief: Originally thought to be a hypervelocity impact crater (caused by an asteroid or comet). Evidence included a central peak, circular shape, and concentric faults.
* Controversy: Some scientists doubted the impact origin, suggesting it was formed by the movement of salt rocks deep underground.
* Recent Confirmation: New seismic imaging led by Uisdean Nicholson (Heriot-Watt University) has provided strong evidence confirming it is an impact crater.This was described as a “needle in the haystack” investigation.
* Meaning: While not as dramatic as the chicxulub crater (linked to dinosaur extinction), it’s a significant find due to its location and provides insights into Earth’s impact history.
