World's Only Moving Mud Puddle

There are zones at various locations on the globe where the geothermal and pressure gradients are abnormally high. Some areas in the United States where abnormally high pressures and temperatures. The consequences are many and the worse case is the continent is sinking.The bottom-hole temperature at 2.2 km was found to be 70°C. The mean surface temperature for the region is 24°C. Determine the geothermal gradient  and a temperature of the formation at a depth of 1,700 m. Solving for  from EquationAs the depth of burial continued, the increase in temperature 
induced dehydration of the clay within the buried zone and contributed to the shearing stresses. The transformation of montmorillonite to illite during diagenesis and catagenesis occurs between 150° and 250°F, releasing an amount of water equal to about half of the original volume, leading to undercompaction in the geopressured zone. 
Ref: https://www.sciencedirect.com/topics/engineering/bottomhole-temperature