The mantle is a layer between the crust and the outer core. Earth's mantle is a silicate rocky shell with an average thickness of 2,886 kilometres (1,793 mi). The mantle makes up about 84% of Earth's volume. It is predominantly solid but in geological time it behaves as a very viscous fluid.
demolition - an event (or the result of an event) that completely destroys something wipeout, destruction conclusion, ending, finish - event whose occurrence ends something; his death marked the ending of an era; when these final episodes are broadcast it will be the finish of the show
neutralisation, neutralization - (euphemism) the removal of a threat by killing or destroying it (especially in a covert operation or military operation) sabotage - a deliberate act of destruction or disruption in which equipment is damaged. extermination, liquidation - the act of exterminating. holocaust - an act of mass destruction and loss of life (especially in war or by fire); a nuclear holocaust. demolition - the act of demolishing. spoliation - (law) the intentional destruction of a document or an alteration of it that destroys its value as evidence.