Septimia, the industrial type of blower used by councils probably would lift the gravel too, but our battery-operated one is very good at separating the leaves from the gravel and depositing them on the lawn, from where they can be transported to the leaf-baskets.
Our council doesn't blow leaves off the pavements, but the prevailing wind does an excellent job of making sure that we get more than our fair share in the garden and usually on the gravel. Still, it gives us good mulch for keeping the weeds down in future years (I'm being optimistic here) and there's a lot of exercise involved in moving them into baskets. 