亮眼!黄建南艺术数字文献系统工程暨从艺60周年作品展启幕

海外华文媒体山西晋城共赏非遗绝技“打铁花”

太行山村的新变化:端起“生态碗” 吃上“旅游饭”

文旅康养融合发展 海外华文媒体山西高平感受乡村振兴活力

海外华媒走进山西高平珐华艺术馆:探寻失落的艺术珍宝

《习近平的文化情缘》将在意大利主流媒体落地播出

Scientists find huge meteor crater in northeast China

发布时间:   来源: 欧洲侨报

Chinese scientists have discovered a meteor crater with a diameter of 1,850 meters and a depth of 150 meters in Yilan County, northeast China's Heilongjiang Province.

Led by the Guangzhou Institute of Geochemistry under the Chinese Academy of Sciences, the findings were published online on the Chinese Science Bulletin on Tuesday.

Located in the southwestern Lesser Khingan Mountains, the bowl-shaped impact crater is mostly well preserved, with just one-third of its edges eroded. Most of the pit area is covered by white birch.

The findings noted that the Yilan crater was formed on Cretaceous granite bedrock, but the exact date of its formation needs further study. Meanwhile, the lacustrine deposits at the bottom of the crater indicate that there was once a lake at the spot, which disappeared around 10,000 years ago.

The discovery can provide new evidence of low-altitude glaciers in northeast China in ancient times, and serve as a "natural crater lab" for the future study of planetary science and geology, according to Chen Ming, a professor with the institute.

Chen determined that such a crater may be found in Yilan County through analyzing satellite images in early 2019.

There are around 190 confirmed impact craters across the world including one in northeast China's Liaoning Province, according to the Earth Impact Database.

上一篇:China captures 99,000 telecom fraud suspects in campaign
下一篇:没有了

首页   |   关于我们

Copyright © http://www.eurochinesedaily.com 欧洲侨报 版权所有