> Geology
> Geology
China is drilling a 10,000-meter-deep hole into Earth’s crust
The narrow shaft into the ground will penetrate more than 10 continental strata or layers of rock & reach the cretaceous system in the Earth’s crust
Startlingly round formation with steep, smooth sides found on seafloor off California
It rises about 3,300 feet, has “relatively steep, smooth sides” and is rounded, with a diameter of nearly 3,000 feet, officials say