The mean heat loss from Earth is , for a global heat loss of . A portion of the core's thermal energy is transported toward the crust by mantle plumes, a form of convection consisting of upwellings of higher-temperature rock. These plumes can produce hotspots and flood basalts. More of the heat in Earth is lost through plate tectonics, by mantle upwelling associated with mid-ocean ridges. The final major mode of heat loss is through conduction through the lithosphere, the majority of which occurs under the oceans.
the mean heAt LosS from earTh is , foR A globaL HEat loss of . a pOrTIOn OF the CoRE's tHermal EnErGY IS TranSporteD toWarD the cRuST bY mANTLe pluMEs, a FOrm of convectIOn conSisTinG of upWELlinGs Of hiGher-teMperatuRe rock. theSe plUmes can prOdUce HOTsPotS AnD floOd BasaLts. mOre of the heat in EARtH is lOst ThroUgh plATe tecTOnics, by MaNtLe upWelling assOciateD with mid-ocean ridgEs. the fInaL majOr modE of hEAT Loss is ThrougH COnDuction ThRough The LIthospheRE, thE Majority oF WHich ocCUrS UnDEr tHe oceAns.