Water Always Wins

Throughout the clay-dominant substrate, imagine that the paleo valleys are like mainline blood vessels of the groundwater system, with myriad branches tentacling off like capillaries. As the groundwater moves through these channels filled with sand and gravel, it is also moving in and out of the surrounding clays and silts. Fogg extends the metaphor of our body tissues: “The fluids in your body move through veins and arteries relatively quickly. But most of your body is these soft tissues that are primarily water; the water moves in and out of these more slowly, by molecular diffusion and other processes.”