The research team also completed its first test drillin

g without a drill pipe core in polar ice bedrock, which helped the scientists obtain the first few samples of bedrock unde

r the ice cores at the station. The conwwwhebeishengxincn-2/ion was also compleexpedition.

Xuelong left Shanghai on Nov 2 and arrived at Zhongshan Station on

Nov 30. The icebreaker entered the Amundsen Sea in early January for a marine survey but

experienced “the worst sea conditions since departure”, according to an earlier report by China Ocean News.

On Jan 19, the ship was caught in a sudden thick fog on the Amundsen Sea and collided with an

iceberg, Cheng Xiao, dean of the College of Global Change and Earth System Science at Beijing Normal University, told Xinhua.

An increase of cyclones in the area since the start of 2019 has great

ly increased the number of floating ice fragments, while in 2018 the area was a single large ice sheet, Ch

en said. The floating ice drifted to the north, pushed by the wind, which also affected navigation on Xuelong’s trip home, he added.

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