There is no evidence of how that was accomplished and what sharia Prophet Adam AS carried. The Quran only teaches us that the human race was created with the creation of Adam AS the first of our human race. There is nothing about his offspring other than Habil and Qabil. Its better not to come up with theories regarding this when it is not really known.
As for the theory of evolution is concerned it does not concern human migration patterns of how the first human gave rise to more humans. I am not against evolution where it proposes a theory for how evolutionary changes came about in the human race. It was infact a very advanced theory for its time and pretty well researched as well.
Current studies in evolution and genetics are more focused on proving that we reached a stage of being hominids from single cell organisms through anthropoids. This I do disagree with and there is not even 1-2% evidence to prove theories which are being proposed for this. The beauty and flaw of all such theories and researches is that they discount or disregard the models or evidence which contradicts them. So the theories only would hold true as long as you stayed within the boundaries it defines for its progression. Theories cannot attain the honor of being facts as long as even one case exists which contradicts it.