From: Extremely long transition phase of thermal convection in the mantle of massive super-Earths
The scaling unit | Symbol | Value |
---|---|---|
Length (mantle depth) | d | 5500 (km) |
Thermal diffusivity | κ | 10−6 (m2/s) |
Time | d 2/κ | 3.0 × 1019 (s) ~ 950 Gyr |
Velocity | κ/d | 5.7 × 10−4 (cm/year) |
Thermal expansivity | α 0 | 4 × 10−5 (K−1) |
Temperature | ∆T | 3000 (K) |