Hade‑Fuman, China’s largest desert oilfield, has produced over 26.0 mln tonnes
of oil and gas from depths below 6,000m. ZhenTan‑1, on the northern edge of the
Taklamakan Desert, recovered rock cores from 8,080m — the first cores taken
deeper than 8,000m on the NW margin of the Tarim Basin; the cores are estimated
to be about 500 million years old.