World's first mountaintop impact crater found in NE China
Time:2024-05-21 16:09:57 Source:opinionsViews(143)
BEIJING, Sept. 9 (Xinhua) -- Chinese scientists have discovered the world's first-known mountaintop impact crater in the country's northeastern region, according to the Center for High Pressure Science &Technology Advanced Research (HPSTAR) in Beijing.
With a diameter of 1,400 meters, the impact crater is located on the top of Baijifeng Mountain in the Baijifeng National Forest Park in Tonghua, Jilin Province. It is a cirque-shaped depression, with a height difference of about 400 meters from the highest rim to the lowest rim, said Chen Ming, a researcher at the HPSTAR.
Scientists believe it was formed by a bolide impact, which took place after the Jurassic Period. It explains the distribution of a large number of rock fragments composed mainly of sandstone, with a small amount of granite, on the top of Baijifeng Mountain as they were ejected from the impact crater during the impact event.
The formation of the impact crater also changed the original topography of Baijifeng Mountain, reforming its top into a double peak with elevations of 1,318 meters and 1,300 meters.
"Most asteroids impact Earth's surface, creating bowl-shaped craters or complex craters with center peaks," said Chen, adding that the discovery thus provides a new perspective for exploring the mechanisms of impact crater formation and the shock-metamorphic effects in unique terrains and landscapes.
Previous:College baseball notebook: Conference tournaments to decide NCAA automatic bids and many at
Next:Elon Musk gets approval from FDA to implant his Neuralink brain chip into a second patient
You may also like
- Young Boys seals 6th Swiss soccer league title in 7 years after rallying from firing coach Wicky
- 11th batch of Chinese medical team provides medical services in Juba, South Sudan
- Interview: China sees rapid urbanization, integrated development in all fields
- Bare mountains turn green again through ecological restoration in SW China's Sichuan
- Analysis: Larson enters conversation with Verstappen as best drivers in the world
- Xinhua Special: Warm Moments of Xi's Visits Ahead of Spring Festival
- Airshow China kicks off in port city Zhuhai
- China's Shenzhou
- Student fatally shot, suspect detained at Georgia's Kennesaw State University