Research has concluded that the "key ingredient" to the creation of new continental crust is the freezing of subducting oceanic crust located in a subduction zone the melting of converging oceanic crust located in a subduction zone the melting of subducting oceanic crust located in a subduction zone the freezing of converging oceanic crust located in a subduction zone

the melting of converging oceanic crust located in a subduction zone

Explanation:

As magma needs to be converted into the formation of a new crust the burning if the oceanic plate under the lighter late created by a subduction zone that recycles all the material in the crust of the earth and this leads to the formation of the newer plates form below and as there is continuous upwelling of the lava at the mid-oceanic trenches the newer plates are formed every day and keep spreading fir the center.

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen