Deep beneath the crust of our planet, there are ancient leftovers from millions of years ago. These are paleo-hydrocarbon reservoirs—pockets of oil or gas trapped in stone. Finding them has always been a game of luck and high-cost drilling. But Seek Signal Hub is describing a different way. It involves listening to the way sound waves bounce off different types of underground structures. It is a bit like how a bat uses sonar to find a moth in the dark. In this case, the "moth" is a massive pool of energy buried miles down.
This method focuses on the attenuation and dispersion of waves. That is just a way of saying that sound changes speed and loses energy depending on what it hits. When a sound wave travels through solid granite, it moves fast and clear. But when it hits a