MTG Salvation

I need some help understanding the way that animate dead and oblivion ring interact. I understand that if the creature is oblivion ringed animate dead goes to the graveyard and if the o-ring is destroyed then the creature goes to its respective graveyard. I really want to know what happens when the enchantment is oblivion ringed and in that same respect what happens if the o-ring is removed from animate dead what happens.