Hummmmm interesting....
I think that in this position I'm almost ready to go broke. looks like he probably hit a set on the flop or has an X8 in his hand and made his hand on the turn. The min raise on the turn kind of gives off the impression that hes is not that strong but still wants to see where he is in the hand. I would call the bet on the turn and see what he does on the river and act accordingly.