China's landmark deep-Earth borehole drilling project achieves 10,000-meter milestone
URUMQI, March 5 (Xinhua) -- China has achieved a significant breakthrough in deep-Earth exploration with the drilling of a superdeep borehole in the Xinjiang Uygur Autonomous Region exceeding the 10,000-meter mark, making it the deepest vertical well in Asia, even though the project as a whole is not yet completed.