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→Remaining heat and radioactive heat
** '''Remaining heat release''': 34 x 1012 J/sec. It comes from the [[mantle]] and the nucleus and is the heat remaining after the formation of the planet.
** '''Remaining heat release''': 34 x 1012 J/sec. It comes from the [[mantle]] and the nucleus and is the heat remaining after the formation of the planet.
** '''Radioactive heat release''': 8 x 1012 J/sec. It comes from the [[crust]] and is produced by the fission of radioactive isotopes.
** '''Radioactive heat release''': 8 x 1012 J/sec. It comes from the [[crust]] and is produced by the fission of radioactive isotopes.
[[File:Figure 1.png|center|frame|{{figure number|1|}}Remaining heat and radioactive heat<ref name=<ref name=Electropaedia />.]]
[[File:Figure 1.png|center|frame|{{figure number|1|}}Remaining heat and radioactive heat<ref>[https://www.mpoweruk.com/geothermal_energy.htm Electropaedia</ref>.]]
=== Igneous phenomena ===
=== Igneous phenomena ===