[Rockhounds] Hailin impact crater: China's newly discovered meteor pit

[Kreigh Tomaszewski]

The Hailin impact crater is a newly-discovered scar in the mountains of
Northeast China left behind by a meteor impact, but geologists aren't sure
exactly when this happened.

The Hailin crater is the fourth confirmed impact crater in China and the
first example in the world of an impact crater located on a mountain ridge,
according to the statement. Scientists previously discovered the world's
first known mountaintop impact crater, also in northeastern China, but
there is a distinction between mountaintop and mountain ridge.

The Hailin crater's unusual oval shape results from the jagged terrain
beneath rather than from a low angle of approach by the meteor, which is
typically the reason why impact craters can be elliptical.

https://www.livescience.com/planet-earth/geology/hailin-impact-crater-chinas-newly-discovered-meteor-pit-born-from-a-nuclear-explosion-level-event