A Chinese expedition team has broken the country’s record for extracting the longest lake sediment core sample on the Qinghai-Tibet Plateau. The scientists said this will help reconstruct a record of the Earth’s climate and environment over the past 150,000 years.
Led by the Institute of Tibetan Plateau Research under the Chinese Academy of Sciences (CAS), the expedition team obtained the sediment core with a length of 144.79 meters at a depth of 153.44 meters in Lake Namtso.
Previously, the maximum drilling depth achieved in China’s plateau lakes was 114.9 meters. The drilling operation Monday marks the first time for the country to achieve a lake drilling depth of 150 meters, said Wang Junbo, head of the expedition team.
A sediment core is a tube of mud collected from the bottom of lakes. Scientists can use such cores to interpret long-term cycles in the Earth’s climate.
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