Current location:sport >>
World's first mountaintop impact crater found in NE China
sport811People have gathered around
Introduction(Xinhua) 15:24, September 09, 2023BEIJING, Sept. 9 (Xinhua) -- Chinese scientists have discovered th ...
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.
Tags:
Reprint:Friends are welcome to share on the Internet, but please indicate the source of the article when reprinting it.“Worldly Wisdom news portal”。http://sierraleone.downmusic.org/html-71e199834.html
Related articles
Inquiry slams UK authorities for failures that killed thousands in infected blood scandal
sportLONDON (AP) — British authorities and the country’s public health service knowingly exposed tens of ...
【sport】
Read moreTOWIE's Ella Rae Wise puts on a leggy display in tiny black hotpants with an ab
sportElla Rae Wise stepped out in a racy ensemble on Saturday as she joined her TOWIE castmates to film n ...
【sport】
Read moreChina: An active participant in promoting human rights within the framework of global governance
sportTourists visit Badachu Park decorated with red lanterns in Beijing, China, Oct. 2, 2019. [Photo /Xin ...
【sport】
Read more
Popular articles
- Socialite Jasmine Hartin enjoys beach snuggle with electrician hunk
- Embracing the spring season: Hulun Lake in north China
- A political prisoner in Belarus smuggles out account of beatings after writing on toilet paper
- Rihanna showcases her impeccable style in a quirky fur coat as she secures front
- What's next for Iran after death of its president in crash?
- An ocean of opportunity
Latest articles
Socialite Jasmine Hartin enjoys beach snuggle with electrician hunk
Hong Kong loses 10,000 civil servants amid political crackdown — Radio Free Asia
Savoring dream life in Tibet with a coffee van
Tesla plans to lay off 10% of workforce, multiple news outlets report
Pope trip to Luxembourg, Belgium confirmed for September, 2 weeks after challenging Asia visit
What do women want? Mandarin pop song lyrics reveal a shift, study shows — Radio Free Asia
LINKS
- Tyler Alexander takes perfect game into eighth inning as Rays beat Blue Jays 4
- Panthers reach Eastern Conference finals for second straight year, eliminating Bruins in 6 games
- Mali's historic city of Djenné mourns lack of visitors
- Chinese courts resolve more disputes through pre
- Heise scores 2 goals as Minnesota beats Toronto 4
- PGA Championship at a glance
- Some rivers within Pearl River, Yangtze River basins to see floods above warning level
- Kentucky Derby winner Mystik Dan takes on 7 other horses in the 149th Preakness
- Heise scores 2 goals as Minnesota beats Toronto 4
- Chinese scientists create multi