Reduced heat flows in heat flow provinces older than 900 My lie between 22 and $29mWm^{-2}$. In contrast, reduced heat flow for younger terrains varies from $19mWm^{-2}$ to $58mWm^{-2}$, but decreases systematically with $(age)^{1/2}$ to arrive at an ...
Reduced heat flows in heat flow provinces older than 900 My lie between 22 and $29mWm^{-2}$. In contrast, reduced heat flow for younger terrains varies from $19mWm^{-2}$ to $58mWm^{-2}$, but decreases systematically with $(age)^{1/2}$ to arrive at an equilibrium value at around 450 My.