AVAST subterranean "sea", about 200,000 square kilometres in extent, has recently been discovered under the East China Plain. It is not, of course, a real sea but a water-bearing formation, or aquifer...
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AVAST subterranean "sea", about 200,000 square kilometres in extent, has recently been discovered under the East China Plain. It is not, of course, a real sea but a water-bearing formation, or aquifer...