Of course, it mostly is found at depths of over 400 miles under the surface. Is this a weird curiosity or is it significant in some way?
“Of course, it mostly is found at depths of over 400 miles under the surface. Is this a weird curiosity or is it significant in some way?”
A significant reason why Mars is a dead world, even though it started off with liquid oceans and a similar to Earth atmosphere is because it does not have a liquid core or a magnetic field. The magnetic field comes from the molten iron core in the Earth. The lack of these things allowed the sun to blast away Mars’ atmosphere. I mention this to say, yeah, the stuff under our feet is important.
Oil has been found miles below the surface, far deeper than any fossils. It is hypothesized that there’s a huge biome under the Earth’s surface where biological agents create oil which then floats upward. Wells drilled in the forties have been reopened and are pumping oil, which had to come from somewhere. This discovery of water probably relates to the Earth’s “oil cycle.” In other words, there is no “peak oil.”