How do you find a buried city in a vast landscape? Finding it randomly would be the equivalent of locating a needle in a haystack, blindfolded, wearing baseball mitts.
I used to dig around the sandbox and pull out pieces of coal and show them to my mother, and she used to say that's how I must have known I was going to be a geologist.
The lowest and most level land areas show us, especially when we dig there to very great depths, nothing but horizontal layers of material more or less varied, which almost all contain innumerable products of the sea.
There's a lot of knowledge in civil engineering about how soils will react when subjected to heavy loads. When you take lightweight vehicles and granular soils of varying composition, it's a very complex modeling process.
Who knows what crumbling infrastructure lies beneath our sleeping children? Actually, many people do - they pay surveyors to take a look.
There are geologists who can pick up a rock and say, 'Yes, there's oil under there.' A geologist who has been studying those kinds of rocks for 10 or 20 years is able to make that pronouncement.
I was trained in seismic prospecting. We'd drill a deep hole and put dynamite in the bottom and blow it up remotely, which would give you a cross-sectional picture of the subsurface, which tells you where to drill.
As with all my work, whether it's a leaf on a rock or ice on a rock, I'm trying to get beneath the surface appearance of things. Working the surface of a stone is an attempt to understand the internal energy of the stone.